| Entries |
| Document | Title | Date |
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| 20080242899 | Process for Production of Purified Alcohols - A process for producing purified alcohols yielding good results in the acid wash color test which comprises the condensation step of subjecting an aldehyde to aldol condensation and dehydration to obtain a corresponding condensate, the hydrogenation step of hydrogenating the condensate into a crude alcohol, and the purification step of distilling the crude alcohol to obtain a purified alcohol, characterized by feeding into the purification step a crude alcohol containing compounds having oxygenic heterocycles bearing carbon-carbon double bonds in the cycle in a concentration of as low as 200 ppm by weight or below. In particular, the aldehyde is n-butyraldehyde, the condensate is 2-ethylhexenal, and the alcohol is 2-ethylhexanol. | 10-02-2008 |
| 20090023962 | METHOD FOR PRODUCING ALCOHOL - The invention relates to a process for producing an alcohol from fats and oils, including:
| 01-22-2009 |
| 20100029996 | CATALYST FOR PRODUCING ALCOHOL - The present invention provides a catalyst for producing alcohols from carboxylic acids by hydrogenation, containing Co metal as an essential component and one or more elements selected from Zr, Y, La, Ce, Si, Al, Sc, V and Mo as a first co-catalyst component, and having 20% or more of cubic phase in the crystal phase of the Co metal, the method for producing the catalyst, and the method for producing an alcohol from a carboxylic acid as a raw material by hydrogenation using the catalyst. | 02-04-2010 |
| 20100113843 | PROCESS OF PRODUCING MONOHYDRIC ALCOHOLS FROM MONOCARBOXYLIC ACIDS OR DERIVATIVES THEREOF - Disclosed herein is a method for producing monohydric alcohols from monocarboxylic acids or derivatives thereof using a catalyst comprising ruthenium (Ru) and tin (Sn) using zinc oxide (ZnO) as both a catalyst support and an active promoter; a catalyst prepared by adding an inorganic binder such as silica, alumina or titania in a limited range to the catalyst comprising the above components in order to impart a shaping ability to the catalyst; or, a modified catalyst reformed by adding at least one reducing component selected from the group consisting of Co, Ni, Cu, Ag, Rh, Pd, Re, Ir, and Pt to the catalyst in order to improve the reducing ability of the catalyst. By using such catalysts, the method according to the present invention is advantageous in that the monohydric alcohols can be prepared in high yield regardless of whether the monocarboxylic acids contain water or not, the monohydric alcohols can be economically prepared because the catalysts can be operated under mild reaction conditions and also exhibits high selectivity and productivity compared to conventional catalysts, and the catalysts have excellent long-term reaction stability so as to be advantageous for industrial applications. | 05-06-2010 |
| 20100121114 | Tunable catalyst gas phase hydrogenation of carboxylic acids - A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over 85% are achieved at 280° C. with catalyst life in the hundreds of hours. | 05-13-2010 |
| 20100286454 | PROCESS FOR THE CO-PRODUCTION OF FATTY ALCOHOLS SHOWING DIFFERENT CARBON CHAIN LENGTHS - A process for the co-production of a stream of a fatty alcohol having first carbon chain lengths and a stream of a fatty alcohol having a second carbon chain lengths, said second carbon chain lengths being longer than said first carbon chain lengths, said process comprising the steps of: (a) supplying a stream comprising lower alkyl esters of fatty acids having chain lengths comprising the first and second chain lengths to a first vaporisation zone and contacting said stream with an amount of hydrogen which is sufficient to vaporise the lower alkyl esters of the fatty acids having the first carbon chain lengths into the hydrogen; (b) supplying the hydrogen and the vaporised lower alkyl esters of fatty acids having the first carbon chain lengths to a first reaction zone comprising catalyst and operating under reaction conditions to allow hydrogenation to the desired alcohol having first carbon chain lengths; (c) recovering from the first reaction zone an alcohol product stream having first carbon chain lengths and hydrogen; (d) separating the stream of fatty alcohol having the first carbon chain lengths from hydrogen; (e) supplying the unvaporised lower alkyl esters of the fatty acids having second carbon chain lengths remaining from step (a) to a second vaporisation zone; (f) contacting the unvaporised lower alkyl esters having second carbon chain lengths in the second vaporisation zone with hydrogen recovered in step (d) and an additional amount of hydrogen such that the total amount of hydrogen is sufficient to vaporise the lower alkyl esters having fatty acids of the second carbon chain lengths into the hydrogen; (g) supplying the hydrogen and the vaporised lower alkyl esters of fatty acids having second carbon chain lengths to a second reaction zone comprising catalyst and operating under reaction conditions to allow hydrogenation to the desired alcohol having second carbon chain lengths; and (h) recovering from the second reaction zone an alcohol product stream having second carbon chain lengths and hydrogen. | 11-11-2010 |
| 20110004033 | Direct and Selective Production of Ethanol from Acetic Acid Utilizing a Platinum/ Tin Catalyst - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and tin supported on silica, graphite, calcium silicate or silica-alumina selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 01-06-2011 |
| 20110046421 | PROCESS FOR THE PRODUCTION OF ALCOHOL FROM A CARBONACEOUS FEEDSTOCK - The present invention relates to a process for the production of ethanol from a carbonaceous feedstock, wherein the carbonaceous feedstock is first converted to synthesis gas which is then converted to ethanoic acid, which is then subject to a two stage hydrogenation process by which at least a part of the ethanoic acid is converted by a primary hydrogenation process to ethyl ethanoate, which ethyl ethanoate is converted by a secondary hydrogenation process to produce ethanol. | 02-24-2011 |
| 20110082322 | Process for Making Ethanol From Acetic Acid Using Acidic Catalysts - A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of a catalyst comprises a first metal on an acidic support. The acidic support may comprise an acidic support material or may comprise an support having an acidic support modifier. The catalyst may be used alone to produced ethanol via hydrogenation or in combination with another catalyst. In addition, the crude ethanol product is separated to obtain ethanol. | 04-07-2011 |
| 20110190547 | PROCESS FOR RECOVERING ETHANOL - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove impurities. | 08-04-2011 |
| 20110190548 | PROCESS FOR PURIFYING ETHANOL - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves returning acetaldehyde separated from the crude ethanol product to the reactor. | 08-04-2011 |
| 20110190549 | PROCESS FOR PRODUCING A WATER STREAM FROM ETHANOL PRODUCTION - In one embodiment, the invention is to a process for producing a water stream comprising the steps of hydrogenating acetic acid to form a crude ethanol product and separating at least a portion of the crude ethanol product in at least one column of a plurality of columns into a distillate comprising ethanol and a residue comprising the water stream. The water stream preferably is essentially free of organic impurities other than acetic acid and ethanol. | 08-04-2011 |
| 20110190550 | PROCESSES FOR PRODUCING ANHYDROUS ETHANOL COMPOSITIONS - In one embodiment, the present invention is to a process for producing a anhydrous ethanol composition comprising hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product; separating in a first column at least a portion of the crude ethanol product into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid; separating in a second column at least a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water; separating in a third column at least a portion of the second residue into a third distillate comprising ethanol and residual water and a third residue comprising separated water; and dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition. The anhydrous ethanol composition, as formed, comprises less than 1 wt. % water, based on the total weight of the anhydrous ethanol composition. | 08-04-2011 |
| 20110190551 | Processes for Producing Ethanol from Acetaldehyde - In one embodiment, the invention is to a process for forming an ethanol mixture by hydrogenating an acetaldehyde feed stream in the presence of a catalyst. The acetaldehyde feed stream comprises acetaldehyde and at least one of acetic acid and ethanol. Preferably the acetaldehyde feed stream is a by-product stream from a vinyl acetate synthesis process. | 08-04-2011 |
| 20110190552 | Process for Heat Integration for Ethanol Production and Purification Process - Ethanol production from the hydrogenation of acetic acid requires energy to drive the hydrogenation reaction and the purification of the crude ethanol product. Heat integration process to recover heat from one part of the production process to be used within the process improves efficiencies and reduces costs. | 08-04-2011 |
| 20110224462 | HYDROGENATION OF ETHANOIC ACID TO PRODUCE ETHANOL - The present invention relates to a process for producing methanol and ethanol, wherein the methanol is produced from synthesis gas and the ethanol is produced via the hydrogenation of an ethanoic acid feed; characterised in that the hydrogenation of the ethanoic acid feed is carried out within the same alcohol synthesis unit and in the presence of the same catalyst(s) that is used to produce the methanol from the synthesis gas and wherein the feed introduced to the alcohol synthesis unit comprises synthesis gas and ethanoic acid. | 09-15-2011 |
| 20110245546 | Ethanol Production from Acetic Acid Utilizing a Cobalt Catalyst - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over either cobalt and palladium supported on graphite or cobalt and platinum supported on silica selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 10-06-2011 |
| 20110257442 | Process for Vaporizing Acetic Acid for Hydrogenation Processes to Produce Ethanol - Vaporizing acetic acid in the presence of hydrogen to provide a vapor feed stream for a hydrogenation process that produces ethanol. The vaporizer forms a vapor feed stream and a blowdown stream having a weight ratio of the vapor feed stream to the blowdown stream of at least 2:1. The acetic acid may vaporized at a temperature below acetic acid's boiling point at the operating pressure of the reactor. The hydrogenation process produces a crude ethanol product and ethanol is separated from the crude product. In addition, at least one recycle stream comprising acetic acid and less than 1.0 wt. % compounds having a boiling point higher than acetic acid, may also be separated. The recycle streams may be introduced to the vaporizer along with acetic acid to form the vapor feed stream. | 10-20-2011 |
| 20110257443 | Catalyst Supports Having Crystalline Support Modifiers - A catalyst comprising a first metal, a silicaceous support, and at least one metasilicate support modifier, wherein at least 1 wt. % of the at least one metasilicate support modifier is crystalline in phase, as determined by x-ray diffraction. The invention also relates to processes for forming such catalysts, to supports used therein, and to processes for hydrogenating acetic acid in the presence of such catalysts. | 10-20-2011 |
| 20110263910 | Copper Catalysts for Making Ethanol from Acetic Acid - Catalysts and processes for forming copper catalysts for use in hydrogenating acetic acid to form ethanol. The catalyst may also comprise a second metal selected from the group consisting of chromium, palladium, platinum, rhodium, ruthenium, silver, tungsten, vanadium, and zinc. | 10-27-2011 |
| 20110263911 | Direct and Selective Production of Ethanol from Acetic Acid Utilizing a Platinum/ Tin Catalyst - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and tin supported on silica, graphite, calcium silicate or silica-alumina selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 10-27-2011 |
| 20110275864 | PROCESS FOR PRODUCING ETHANOL USING AN EXTRACTIVE DISTILLATION COLUMN - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol product are employed to allow recovery of ethanol and remove impurities. In addition, the process involves separating the crude ethanol product using an extractive distillation column that employs an extraction agent, such as a recycled stream comprising water. | 11-10-2011 |
| 20110275865 | PROCESS FOR SEPARATING ACETALDEHYDE FROM ETHANOL-CONTAINING MIXTURES - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, light ends are separated in an acetaldehyde removal column operating at a pressure greater than atmospheric pressure to recover acetaldehyde that may be returned to the reactor and reduce acetaldehyde concentrations in an ethyl acetate stream. | 11-10-2011 |
| 20110282109 | Ethanol Production from Acetic Acid Utilizing a Cobalt Catalyst - A process for the selective and direct formation of ethanol from acetic acid comprising contacting a feed stream containing acetic acid and hydrogen in vapor form at an elevated temperature with a hydrogenation catalyst comprising cobalt and one or more metals selected from the group consisting of palladium, platinum, rhodium, ruthenium, rhenium, iridium, chromium, copper, tin, molybdenum, tungsten, vanadium, zinc and iron on a catalyst support. | 11-17-2011 |
| 20110282110 | Palladium Catalysts for Making Ethanol from Acetic Acid - Catalysts and processes for forming catalysts for use in hydrogenating acetic acid to form ethanol. The catalyst comprises palladium and chromium on a support. | 11-17-2011 |
| 20110306805 | PROCESS FOR HYDROGENATING ALKYL ESTER(S) IN THE PRESENCE OF CARBON MONOXIDE - A process for the preparation of alcohol(s) from alkyl ester(s) wherein hydrogen, carbon monoxide and at least one alkyl ester are brought into contact with a hydrogenation catalyst comprising copper and manganese in a reaction zone to produce at least one alcohol, wherein the molar ratio of hydrogen to carbon monoxide in the reaction zone is in the range of from 100:1 to 1:10. | 12-15-2011 |
| 20110306806 | Synthesis of Ethanol from Biomass - A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over either cobalt and palladium supported on graphite or cobalt and platinum supported on silica selectively produces ethanol in a vapor phase at a temperature of about 250° C. | 12-15-2011 |
| 20120010441 | PROCESS FOR RECYCLING GAS FROM ACETIC ACID HYDROGENATION - Monitoring and recycling gases from acetic acid hydrogenation reaction to maintain a constant pressure in the hydrogenation reaction system. Purging of the vapor stream comprising hydrogen may be limited or reduced. Further purging of the by-product may be from the dissolved by-product gases. | 01-12-2012 |
| 20120010442 | PROCESS FOR RECOVERING ETHANOL WITH SIDEDRAWS TO REGULATE C3+ ALCOHOLS CONCENTRATIONS - Purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidedraws to regulate C | 01-12-2012 |
| 20120010443 | Esterification Of Vapor Crude Product In The Production Of Alcohols - Ethanol production process for recovering ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Ethanol recovery is improved by esterifying a vapor crude ethanol product to reduce unreacted acetic acid concentration. | 01-12-2012 |
| 20120010444 | Alcohol Production Process with Impurity Removal - A method of removing impurities, such as halogens, sulfurs, and corrosion metal impurities, in an ethanol production process. Ion exchange resins may be used to remove these impurities from acetic acid feed streams and recycle streams that comprise unreacted acetic acid. | 01-12-2012 |
| 20120010445 | Low Energy Alcohol Recovery Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using various combinations of membranes and/or distillation columns. | 01-12-2012 |
| 20120010446 | Hydrogenolysis of Ethyl Acetate in Alcohol Separation Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and by reacting a portion of the crude ethanol product or one or more derivative streams containing ethyl acetate obtained therefrom in the presence of hydrogen, via hydrogenolysis. The one or more derivative streams comprise ethyl acetate that are reacted in via hydrogenolysis form additional ethanol that may be directly or indirectly fed to the separation zone or the hydrogenation reactor. | 01-12-2012 |
| 20120010447 | Weak Acid Recovery System for Ethanol Separation Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and recovery of unreacted acetic acid from a weak acid stream. The unreacted acetic acid may be recovered as a dry acetic acid composition and may be directly or indirectly fed to the hydrogenation reactor. | 01-12-2012 |
| 20120010448 | Finishing Reactor for Purifying Ethanol - A process for purifying ethanol by using a finishing reactor to remove impurities, such as ethyl acetate, acetaldehyde, acetic acid, and diethyl acetal, present in ethanol after distilling a crude product from a hydrogenation reactor. The finishing reactor may reduce the impurities in the presence of hydrogen and a catalyst or may hydrolyze the impurities. | 01-12-2012 |
| 20120016163 | PROCESS FOR THE CO-PRODUCTION OF A STREAM OF A FATTY ALCOHOL HAVING A FIRST CARBON CHAIN LENGTH AND A STREAM OF A FATTY ALCOHOL HAVING A SECOND CARBON LENGTH - A process for the co-production of a stream of a fatty alcohol having first carbon chain lengths and a stream of a fatty alcohol having a second carbon chain lengths, said second carbon chain lengths being longer than said first carbon chain lengths, said process comprising the steps of: (a) supplying a stream comprising lower alkyl esters of fatty acids having chain lengths comprising the first and second chain lengths to a first vaporisation zone and contacting said stream with an amount of hydrogen recycled from step (i) which is sufficient to vaporise the lower alkyl esters of the fatty acids having the first carbon chain lengths into the hydrogen; (b) supplying the hydrogen and the vaporised lower alkyl esters of fatty acids having the first carbon chain lengths to a first reaction zone comprising catalyst and operating under reaction conditions to allow hydrogenation to the desired alcohol having first carbon chain lengths; (c) recovering from the first reaction zone an alcohol product stream having first carbon chain lengths and the hydrogen; (d) supplying the unvaporised lower alkyl esters of the fatty acids having second carbon chain lengths remaining from step (a) to a second vaporisation zone; (e) contacting the unvaporised lower alkyl esters having second carbon chain lengths in the second vaporisation zone with an amount of hydrogen sufficient to vaporise the lower alkyl esters having fatty acids of the second carbon chain lengths into the hydrogen; (f) supplying the hydrogen and the vaporised lower alkyl esters of fatty acids having second carbon chain lengths to a second reaction zone comprising catalyst and operating under reaction conditions to allow hydrogenation to the desired alcohol having second carbon chain lengths; (g) recovering from the second reaction zone an alcohol product stream having second carbon chain lengths and hydrogen; (h) separating the stream of fatty acid alcohol having the second carbon chain length from hydrogen; and (i) recycling a portion of the hydrogen recovered in step (h) to the first vaporisation zone and a portion to the second vapourisation zone. | 01-19-2012 |
| 20120046501 | Hydrogenolysis of Ethyl Acetate in Alcohol Separation Processes - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and by reacting a portion of the crude ethanol product or one or more derivative streams containing ethyl acetate obtained therefrom in the presence of hydrogen, via hydrogenolysis. The one or more derivative streams comprise ethyl acetate that are reacted via hydrogenolysis to form additional ethanol that may be directly or indirectly fed to the separation zone or the hydrogenation reactor. | 02-23-2012 |
| 20120046502 | PROCESS FOR RECOVERING ETHANOL WITH VAPOR SEPARATION - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove impurities. | 02-23-2012 |
| 20120059197 | ALCOHOL PRODUCTION PROCESS INTEGRATING ACETIC ACID FEED STREAM COMPRISING WATER FROM CARBONYLATION PROCESS - In one embodiment, the invention is to a process for producing ethanol, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising up to 25 wt. % water. The process further comprises the step of hydrogenating acetic acid of the purified acetic acid stream in the presence of a catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. Ethanol is recovered from the crude ethanol product. | 03-08-2012 |
| 20120071697 | Method for Producing Ethanol - A method for producing ethanol by which ethanol can be synthesized from less fermentable biomass materials such as plant-derived materials and rice straws and industrial waste biomass materials such as wooden building materials and pulp and which can therefore broaden the range of raw materials for the production of ethanol. Specifically, a method for producing ethanol including reacting a raw material gas obtained by a thermochemical gasification reaction of biomass in the presence of a catalyst containing rhodium, at least one transition metal, and at least one element selected from lithium, magnesium and zinc. | 03-22-2012 |
| 20120083631 | PROCESS FOR PRODUCING FATTY ALCOHOLS BY HYDROGENATION OF FATTY ACID TRIGLYCERIDES ON A COPPER-CONTAINING HETEROGENEOUS CATALYST - The present invention relates to a process for preparing fatty alcohols, in which a stream comprising at least one fatty acid triglyceride is provided and this stream is subjected to a hydrogenation in the presence of a heterogeneous copper catalyst. | 04-05-2012 |
| 20120136179 | Copper Chromite Hydrogenation Catalysts For Production Of Fatty Alcohols - Provided are hydrogenation catalysts for processing esters into fatty alcohols. More particularly, the catalysts are for vapor-phase hydrogenation of methyl esters to fatty alcohols under fixed-bed conditions, where conditions are typically in a temperature range of 200 to 250° C. and a pressure range of 30 to 50 bar. Methods of making and using the same are also provided. These catalysts comprise a copper chromite, an alkali metal or alkaline earth metal component, and an inorganic matrix component, which are processed together to form the catalyst. The alkali metal component can comprise sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), or combinations thereof. The alkaline earth metal can comprise magnesium (Mg), calcium (Ca), barium (Ba), or combinations thereof. | 05-31-2012 |
| 20120142978 | PROMOTED COPPER/ZINC CATALYST FOR HYDROGENATING ALDEHYDES TO ALCOHOLS - A catalyst for hydrogenating aldehydes to alcohols includes a combination of copper oxide and zinc oxide and promoters including one or more alkaline earth metal promoters and/or one or more transition metal promoters. The promoters may be combined with copper oxide and zinc oxide after formation of a copper/zinc precursor material. | 06-07-2012 |
| 20120149949 | PROCESS FOR PRODUCING ETHANOL USING A STACKED BED REACTOR - The present invention produces ethanol in a stacked bed reactor that comprises a first catalyst comprising platinum and tin and a second catalyst comprising copper or an oxide thereof. The crude ethanol product may be separated and ethanol recovered. | 06-14-2012 |
| 20120157721 | PROCESS FOR PRODUCING ETHANOL USING MULTIPLE BEDS EACH HAVING DIFFERENT CATALYSTS - The present invention produces ethanol in a stacked bed reactor that comprises a first catalyst and a second catalyst, wherein the first and second catalysts comprise at least one group VIII metal, and wherein the second catalyst is substantially free of copper. The crude ethanol product may be separated and ethanol recovered. | 06-21-2012 |
| 20120178975 | Process for Production of Ethanol Using a Mixed Feed Using Copper Containing Catalyst - The present invention produces ethanol in a reactor that comprises a catalyst comprising from 40 to 70 wt. % copper and 15 to 40 wt. % zinc and a support material. The crude ethanol product may be separated and ethanol recovered. | 07-12-2012 |
| 20120209034 | Process for Producing Ethanol over Catalysts Containing Platinum and Palladium - The present invention relates to a process for producing product comprising ethanol which comprises contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions with a catalyst composition comprising platinum, palladium and tin on a support, wherein the catalyst has an excess amount of platinum relative to the amount of palladium based on weight. | 08-16-2012 |
| 20120238785 | Process For The Production of Ethanol From An Acetic Acid Feed and A Recycled Ethyl Acetate Feed - The present invention produces ethanol in a reactor that comprises a catalyst composition and a feed stream comprising acetic acid and a recycled liquid stream comprising ethyl acetate. The catalyst composition comprises a first catalyst comprising platinum, cobalt, and/or tin and a second catalyst comprising copper. The crude ethanol product may be separated and ethanol recovered. | 09-20-2012 |
| 20120238786 | Reduction of Acid Within Column Through Esterification During the Production of Alcohols - Purifying and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In addition, the process involves the esterification of acetic acid in a column used for recovering the ethanol. | 09-20-2012 |
| 20120245396 | Recovering Ethanol Sidedraw By Separating Crude Product From Hydrogenation Process - A process for producing ethanol is disclosed, comprising the steps of hydrogenating acetic acid in a reactor in the presence of a catalyst to form a crude ethanol product, separating at least a portion of the crude ethanol product in a column into a first distillate comprising ethanol and a first residue comprising acetic acid and water, wherein a substantial portion of the water in the crude ethanol product that is fed to the column is removed in the first residue, and separating a portion of the ethanol mixture stream to the second distillation column to yield an ethanol product sidedraw, second residue comprising water and a second distillate comprising ethyl acetate. The water content of the ethanol product sidedraw may be further reduced to yield a stream having reduced water content. | 09-27-2012 |
| 20120253085 | Ethanol Production from Acetic Acid Utilizing a Molybdenum Carbide Catalyst - A process for the selective and direct formation of ethanol from acetic acid comprising contacting a feed stream containing acetic acid and hydrogen in vapor form at an elevated temperature with a hydrogenation catalyst comprising molybdenum carbide and one or more promoter metals selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, potassium, tin and tungsten on a catalyst support | 10-04-2012 |
| 20120277485 | Process to Recover Alcohol From an Acidic Residue Stream - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process. The crude ethanol product is separated in a column to produce a distillate stream comprising ethyl acetate and a residue stream comprising ethanol, acetic acid, and water. The ethanol product is recovered from the residue stream. | 11-01-2012 |
| 20120277486 | PROCESS FOR REDUCING THE CONCENTRATION OF ACETIC ACID IN A CRUDE ALCOHOL PRODUCT - A process for producing ethanol and, in particular, to a process for reducing the concentration of acetic acid in a crude ethanol product by esterifying unreacted acetic acid with an alcohol. | 11-01-2012 |
| 20120277487 | Process for Removing Aldehydes from Ethanol Reaction Mixture - A process for purifying an ethanol stream that comprises byproduct, such as aldehyde, acetals, and/or esters, but withdrawing a sidestream comprising ethanol from a distillation column. The sidestream may have a reduced concentration of aldehyde that reduces the formation of acetals in subsequent purification of the ethanol stream. | 11-01-2012 |
| 20120277488 | Recovering Ethanol with Sidestreams to Regulate C3+ Alcohols Concentrations - This invention relates to purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidestreams to regulate C | 11-01-2012 |
| 20120277489 | Recovering Ethanol with Sidestreams to Regulate C3+ Alcohols Concentrations - This invention relates to a process for producing ethanol and recovering methyl iodide, the process comprising the steps of carbonylating methanol in a carbonylation system in the presence of a carbonylation catalyst under conditions effective to form acetic acid; hydrogenating the acetic acid in a hydrogenation system in the presence of a hydrogenation catalyst to form a crude ethanol product comprising ethanol and water; and separating the crude ethanol product to form an ethanol stream and a water stream. | 11-01-2012 |
| 20120277490 | Process to Recover Alcohol From An Ethyl Acetate Residue Stream - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. The ethanol product is recovered from the residue stream. | 11-01-2012 |
| 20120277491 | REDUCING ETHYL ACETATE CONCENTRATION IN RECYCLE STREAMS FOR ETHANOL PRODUCTION PROCESSES - Recycle streams in an ethanol production process are hydrolyzed to reduce ethyl acetate concentration. In the process, acetic acid is hydrogenated to form a crude ethanol product, which undergoes a separation or purification process. Ethyl acetate is formed as a byproduct of the hydrogenation of acetic acid. The hydrolysis of recycle steams from the separation process can reduce the concentration of ethyl acetate, converting some or all of the ethyl acetate to acetic acid and ethanol. | 11-01-2012 |
| 20120277492 | Reduced Energy Alcohol Separation Process Having Controlled Pressure - The present invention is directed to processes for the recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process. The crude ethanol product is separated in one or more columns. At least one of the columns is operated at a controlled pressure to enhance separation of ethanol and organics. In one embodiment, there are at least two columns that operate at controlled pressures. | 11-01-2012 |
| 20120277493 | Process to Recover Alcohol with Secondary Reactors for Hydrolysis of Acetal - A process for recovering ethanol obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and ethyl acetate and a residue stream comprising ethanol, acetic acid and water. Acetal byproduct can be reduced or removed through configurations of hydrolysis secondary reactors. The ethanol product is recovered from the residue stream. | 11-01-2012 |
| 20120277494 | Process to Reduce Ethanol Recycled to Hydrogenation Reactor - The present invention is directed to processes for recovering ethanol obtained from the hydrogenation of acetic acid. Acetic acid is hydrogenated in the presence of a catalyst in a hydrogenation reactor to form a crude ethanol product. The crude ethanol product is separated in one or more columns to recover ethanol. In some embodiments, less than 10 wt. % ethanol is recycled to the hydrogenation reactor. | 11-01-2012 |
| 20120277495 | Process For Controlling A Reboiler During Alcohol Recovery and Reduced Ester Formation - The present invention is related to processes for the separation of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in one or more columns. A reboiler is used following one or more of the columns for reducing ester formation. | 11-01-2012 |
| 20120277496 | Process for Producing Ethanol and Reducing Acetic Acid Concentration - A process for producing ethanol and, in particular, to a process for reducing the concentration of acetic acid in a crude ethanol product by esterifying unreacted acetic acid with an alcohol. | 11-01-2012 |
| 20120277497 | Process to Recover Alcohol with Reduced Water From Overhead of Acid Column - A process for recovering ethanol obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and ethyl acetate and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. The ethanol product is recovered from the residue stream. | 11-01-2012 |
| 20120330071 | ALCOHOL SYNTHESIS - A process is disclosed for the production of alcohols including ethanol, propanol and butanol starting with lower molecular weight alcohol, which is reacted with carbon monoxide to give an organic acid that in turn is reduced with hydrogen to form the product. | 12-27-2012 |
| 20130030224 | NANOMETER-SIZED COPPER-BASED CATALYST, PRODUCTION METHOD THEREOF, AND ALCOHOL PRODUCTION METHOD USING THE SAME THROUGH DIRECT HYDROGENATION OF CARBOXYLIC ACID - Disclosed is a nano-sized Cu based catalyst and a method of preparing the same including dissolving, in an aqueous solution, a first component comprising a Cu precursor, a second component precursor comprising one or more selected from the group consisting of a transition metal, an alkaline earth metal and a Group IIIb metal, and a third component precursor comprising one or more selected from the group consisting of alumina, silica, silica-alumina, magnesia, titania, zirconia and carbon and then performing stirring; precipitating the stirred mixture solution using Na2CO3 and NaOH to form a catalyst precursor precipitate; and washing and filtering the formed catalyst precursor precipitate. Also a method of preparing alcohol is provided, including reacting hydrogen with carboxylic acid including a single acid or an acid mixture of two or more acids derived from a microorganism fermented solution, using the nano-sized Cu based catalyst. | 01-31-2013 |
| 20130035518 | REDUCING ACETALS DURING ETHANOL SEPARATION PROCESS USING HIGH PRESSURE DISTILLATION COLUMN - To reduce acetal concentrations when separating ethanol from a crude product in one or more distillation column, at least one of the columns is operated at a higher pressure to increase the equilibrium constant that favors hydrolysis of the acetal. The crude product may comprise ethanol, acetaldehyde, water and one or more acetals, such as diethyl acetal. The acetal concentration may be reduced thus reducing the need to separate acetal from the crude product. | 02-07-2013 |
| 20130035519 | REDUCING ACETALS AND/OR ESTERS DURING ETHANOL SEPARATION PROCESS - To reduce acetal and/or ester concentrations when separating ethanol from a crude product in one or more distillation column, at least one of the columns is operated at a higher pressure to increase the equilibrium constant that favors hydrolysis of the acetal. The crude product may comprise ethanol, acetaldehyde, water, ethyl acetate and one or more acetals, such as diethyl acetal. The acetal and/or ester concentration may be reduced thus reducing the need to separate acetal and/or ester from the crude product. | 02-07-2013 |
| 20130035520 | REDUCING IMPURITIES IN HYDROGENATION PROCESSES WITH MULTIPLE REACTION ZONES - In a hydrogenation processes, a second lower temperature hydrogenation reactor is used to control the concentration of impurities, namely ethyl acetate, acetaldehyde, and acetal, prior to separating the reaction mixtures. Controlling impurities reduces the need for separation capital and improves overall efficiencies for recovering alcohols. | 02-07-2013 |
| 20130035521 | Process for Separating Ethanol Having Low Acid - A process for operating a distillation column to separate an ethanol mixture comprising ethanol and acetic acid where the recovered ethanol comprises less than 700 wppm acetic acid. The operating conditions for the column may vary depending on the fed composition. In particular the process provides energy efficient recovery of ethanol with low concentration acetic acid. | 02-07-2013 |
| 20130035522 | Processes for Separating Ethanol Having Low Acid - A process for reducing ethyl acetate and/or diethyl acetal concentration of a crude ethanol product by hydrolysis is disclosed. A portion of the water is initially separated from the crude ethanol product in a first column residue. Ethyl acetate in the first column distillate is hydrolyzed to form additional ethanol and acetic acid. Product ethanol is recovered in a second distillation column preferably in a side stream and acetic acid is removed in the second column residue. | 02-07-2013 |
| 20130035523 | Reducing Acetals During Ethanol Separation Process - To reduce acetal concentrations when separating ethanol from a crude product in one or more distillation column, at least one of the columns is operated at a higher pressure to increase the equilibrium constant that favors hydrolysis of the acetal. The crude product may comprise ethanol, acetaldehyde, water and one or more acetals, such as diethyl acetal. The acetal concentration may be reduced thus reducing the need to separate acetal from the crude product. | 02-07-2013 |
| 20130035524 | PROCESS FOR RECOVERING ALCOHOL - Recovery of an alcohol such as ethanol from a crude alcohol product, preferably obtained from the hydrogenation of acetic acid using a low energy process. The crude ethanol product is separated in a column to produce a distillate stream comprising ethyl acetate and a residue stream comprising ethanol, acetic acid, and water. The ethanol product is recovered in a second column as an ethanol side stream. | 02-07-2013 |
| 20130035525 | PROCESS FOR PRODUCING ANHYDROUS ETHANOL USING EXTRACTIVE DISTILLATION COLUMN - The present invention relates to the recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol product are employed to allow recovery of an anhydrous ethanol composition. The process involves separating the crude ethanol product using one or more extractive distillation columns that employ one or more extractive agents. The anhydrous ethanol composition comprises less than 1 wt. % water, based on the total weight of the anhydrous ethanol composition. | 02-07-2013 |
| 20130046119 | INTEGRATED PROCESS FOR PRODUCING ETHANOL FROM METHANOL - Processes and systems for forming ethanol from methanol. The process involves carbonylating the methanol to form acetic acid and hydrogenating the acetic acid to form ethanol. In a first aspect, at least some hydrogen for the hydrogenating step is derived from a tail gas stream formed in the carbonylation step. In a second aspect, at least some carbon monoxide for the carbonylation step is derived from a vapor stream in the hydrogenation system. In a third aspect, a syngas stream is separated to form a hydrogen stream and a carbon monoxide stream, and the hydrogen stream is methanated to remove residual carbon monoxide prior to being introduced into the hydrogenation system. | 02-21-2013 |
| 20130046120 | INTEGRATED PROCESS FOR PRODUCING ETHANOL - Processes and systems for forming ethanol from methanol. The process involves carbonylating the methanol to form acetic acid and hydrogenating the acetic acid to form ethanol. In a first aspect, at least some hydrogen for the hydrogenating step is derived from a tail gas stream formed in the carbonylation step. In a second aspect, at least some carbon monoxide for the carbonylation step is derived from a vapor stream in the hydrogenation system. In a third aspect, a syngas stream is separated to form a hydrogen stream and a carbon monoxide stream, and the hydrogen stream is methanated to remove residual carbon monoxide prior to being introduced into the hydrogenation system. | 02-21-2013 |
| 20130053605 | Process for Recovering Ethanol - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove impurities. | 02-28-2013 |
| 20130053606 | Process for Producing Ethanol Using An Extractive Distillation Column - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of crude ethanol product are employed to allow recovery of ethanol and remove impurities. In addition, the process involves separating the crude ethanol product using an extractive distillation column that employs an extraction agent, such as a recycled stream comprising water. | 02-28-2013 |
| 20130072728 | Process for Vapor Phase Hydrogenation - A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over 85% are achieved at 280° C. with catalyst life in the hundreds of hours. | 03-21-2013 |
| 20130090500 | PROCESSES FOR HYDROGENATING ALKANOIC ACIDS USING CATALYST COMPRISING TUNGSTEN - A process hydrogenating alkanoic acids in the presence of a catalyst that comprises supports, one or more metals, tungsten oxide, and at least one alkaline earth metal oxide or metasilicate. The molar ratio of the at least one alkaline earth metal oxide or metasilicate to tungsten oxide, based on the metals, is from 1:3 to 5:1. | 04-11-2013 |
| 20130090501 | PROCESS FOR PRODUCING ETHANOL USING A CRUDE VINYL ACETATE FEED - Converting a crude vinyl acetate feed to ethanol by hydrogenating the acetic acid and ethyl acetate in the crude vinyl acetate feed. The crude vinyl acetate feed may comprise acetic acid and/or ethyl acetate, as well as vinyl acetate and minor amounts of vinyl propionate. The crude vinyl acetate feed may be obtained from an azeotrope column as either a sidestream or a bottom stream in a vinyl acetate production process. | 04-11-2013 |
| 20130109891 | Process to Recover Alcohol with Secondary Reactors for Esterification of Acid | 05-02-2013 |
| 20130116476 | Integrated Acid and Alcohol Production Process - An integrated process for producing ethanol, comprising the step of reacting carbon monoxide with at least one reactant in a reactor containing a reaction medium to produce a liquid reaction product comprising acetic acid. The reaction medium comprises water, acetic acid, methyl acetate, a halogen promoter, and a first catalyst. The process further comprises the steps of directly feeding the liquid reaction product from the reactor to a distillation column and withdrawing from it an overhead stream comprising methyl acetate, and/or halogen promoter, a bottoms stream comprising a solution of the first catalyst, and a liquid acetic acid sidestream; and hydrogenating acetic acid of the liquid acetic acid sidestream in the presence of a second catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. No flashing vessel is used to purify the liquid reaction product. Ethanol is recovered from the crude ethanol product. | 05-09-2013 |
| 20130116477 | Integrated Acid and Alcohol Production Process Having Flashing To Recover Acid Production Catalyst - In one embodiment, the invention is to a process for producing ethanol, comprising the step of reacting carbon monoxide with at least one reactant in a reactor containing a reaction medium to produce a liquid reaction product comprising acetic acid. The process further comprises the step of separating the reaction product in a flasher into a liquid recycle stream and a vapor stream. The vapor stream is then distilled in a rectification tower and an overhead stream and an acetic acid stream are withdrawn therefrom, wherein the acetic acid is substantially free of halogen promoters. The process further comprises the step of hydrogenating acetic acid of the acetic acid stream in the presence of a second catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. Ethanol is recovered from the crude ethanol product. | 05-09-2013 |
| 20130116478 | Producing Ethanol Using Two Different Streams From Acetic Acid Carbonylation Process - This invention relates to processes for producing ethanol from at least two different streams obtained by carbonylating methanol. The process comprises the steps of reacting carbon monoxide with at least one reactant in a first reactor containing a reaction medium to produce a reaction solution comprising acetic acid, wherein the at least one reactant is selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof and wherein the reaction medium comprises water, acetic acid, methyl iodide, and a first catalyst, purifying the reaction solution to yield an acetic acid product stream and at least one derivative stream, introducing the acetic acid product stream and the at least one derivative stream into a second reactor in the presence of a second catalyst to form a crude ethanol product, and recovering ethanol from the crude ethanol product. | 05-09-2013 |
| 20130116479 | Integrated Process For Producing Ethanol - In one embodiment, the invention is to a process for producing ethanol, the process comprising the steps of carbonylating methanol in a carbonylation system in the presence of a carbonylation catalyst under conditions effective to form acetic acid; hydrogenating the acetic acid in a hydrogenation system in the presence of a hydrogenation catalyst to form a crude ethanol product comprising ethanol and water; separating the ethanol from the water to form an ethanol stream and a water stream; and directing at least a portion of the water stream to the carbonylation system, e.g., for use as an extractant in a permanganate reducing compound removal system. | 05-09-2013 |
| 20130116480 | Integrated Process For Producing Ethanol and Water Balance Control - Described is an integrated process for producing ethanol from acetic acid in which the water from ethanol production is used to control water balance in the acetic acid production. In one embodiment, the invention comprises carbonylating methanol in a carbonylation system in the presence of a carbonylation catalyst under conditions effective to form acetic acid, hydrogenating the acetic acid in a hydrogenation system in the presence of a hydrogenation catalyst to form a crude ethanol product comprising ethanol and water, separating the ethanol from the water to form an ethanol stream and a water stream, and directing at least a portion of the water stream to the carbonylation system, e.g., for use in the carbonylation reaction medium. | 05-09-2013 |
| 20130131396 | Esterifying Acetic Acid To Produce Ester Feed For Hydrogenolysis - Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying an excess molar ratio of acetic acid with an alcohol, such as ethanol, to produce the esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. | 05-23-2013 |
| 20130131397 | Liquid Esterification Method To Produce Ester Feed For Hydrogenolysis - Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying, in the liquid phase, acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. | 05-23-2013 |
| 20130131398 | Process of Recovery of Ethanol From Hydrogenolysis Process - Disclosed herein are processes for alcohol production by reducing an esterification product, such as ethyl acetate. The processes comprise esterifying acetic acid and an alcohol such as ethanol to produce an esterification product. The esterification product is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising ethyl acetate, ethanol, and at least one alcohol having at least 4 carbon atoms. The ethanol is recovered with a reduced amount of the alcohol having at least 4 carbon atoms. | 05-23-2013 |
| 20130131399 | Catalyst Preparations for High Conversion Catalysts for Producing Ethanol - A process for producing a catalyst, the process comprising the steps of: impregnating a first metal from a first metal precursor on a support to form a first impregnated support; calcining the first impregnated support; impregnating a second metal from a second metal precursor on the first impregnated support to form a second impregnated support; calcining the second impregnated support to form the catalyst, wherein the catalyst has a total metal loading of at least 2 wt. % based on the total weight of the catalyst. A method for hydrogenating alkanoic acids in the presence of the catalyst is also disclosed. | 05-23-2013 |
| 20130131400 | Hydrogenating Acetic Acid to Produce Ethyl Acetate and Reducing Ethyl Acetate to Ethanol - Disclosed herein are processes for alcohol production by reducing an ethyl acetate produced by hydrogenating acetic acid in the presence of a suitable catalyst. The ethyl acetate is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. Thus, ethanol may be produced from acetic acid through an ethyl acetate intermediate without an esterification step. This may reduce the recycle of ethanol in the hydrogenolysis process and improve ethanol productivity. | 05-23-2013 |
| 20130137904 | INTEGRATED PROCESS FOR PRODUCING POLYVINYL ALCOHOL OR A COPOLYMER THEREOF AND ETHANOL - Ethanol is produced from methyl acetate by a hydrogenolysis reaction. The methyl acetate is produced as a byproduct during the conversion of a vinyl acetate polymer or copolymer to a polymer or copolymer of vinyl alcohol. The hydrogenolysis reaction also produces methanol. At least a portion of this methanol is converted to acetic acid by reaction with carbon monoxide in a carbonylation reaction. At least a portion of this acetic acid is converted to ethanol by a hydrogenation reaction with hydrogen. By integrating the processes as described herein, a valuable product, i.e. ethanol, is produced from a methyl acetate byproduct. | 05-30-2013 |
| 20130137905 | INTEGRATED PROCESS FOR PRODUCING POLYVINYL ALCOHOL OR A COPOLYMER THEREOF AND ETHANOL - Ethanol is produced from methyl acetate by a hydrogenolysis reaction. The methyl acetate is produced as a byproduct during the conversion of a vinyl acetate polymer or copolymer to a polymer or copolymer of vinyl alcohol. The hydrogenolysis reaction also produces methanol. At least a portion of this methanol is converted to acetic acid by reaction with carbon monoxide in a carbonylation reaction. At least a portion of this acetic acid is converted to vinyl acetate monomer by a reaction with oxygen and ethylene. The vinyl acetate is polymerized to form the vinyl acetate polymer or copolymer. By integrating the two processes, a valuable product, i.e. ethanol, is produced from a methyl acetate byproduct. | 05-30-2013 |
| 20130137906 | Treatment of Recycle Gas from Acid Hydrogenation - In a process for producing ethanol, acetic acid is contacted with hydrogen in a reaction zone in the presence of a hydrogenation catalyst to form a crude ethanol product comprising ethanol, hydrogen and carbon monoxide. At least a portion of the crude ethanol product is separated to yield a vapor stream and a liquid stream, wherein the vapor stream comprises hydrogen and carbon monoxide, and wherein the liquid stream comprises ethanol. At least a portion of the vapor stream is contacted with a methanation catalyst under conditions such that carbon monoxide reacts with hydrogen in the vapor stream portion to produce a treated stream comprising methane, hydrogen and less carbon monoxide than the vapor stream. At least a portion of the treated stream is returned directly or indirectly to the reaction zone and ethanol is recovered from the liquid stream. | 05-30-2013 |
| 20130158300 | Process For Producing Ethanol By Hydrogenating Mixed Feeds Comprising Water - The processes of the current invention relate to the production of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and ethyl acetate. Conversion of ethyl acetate may be improved by controlling the water content that may be fed to the vaporizer to form a feed stream that may be fed to the hydrogenation reactor. At least 0.01 wt. % water is fed to the vaporizer. The crude ethanol product is separated two or more columns to yield an ethanol product. | 06-20-2013 |
| 20130158301 | Multiple Vapor Feeds for Hydrogenation Process to Produce Alcohol - The present invention relates to processes for the recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising ethyl acetate, ethanol and acetaldehyde and a residue stream comprising ethanol, acetic acid and water. The ethanol product is recovered from the residue stream. A liquid recycle stream is sent to a second vaporizer to form a second vapor feed stream that is fed to the hydrogenation reactor. | 06-20-2013 |
| 20130158302 | Phasing Reactor Product from Hydrogenating Acetic Acid Into Ethyl Acetate Feed to Produce Ethanol - Disclosed herein are processes for alcohol production by reducing ethyl acetate produced by hydrogenating acetic acid in the presence of a suitable catalyst. The product of the acetic acid hydrogenation is fed directly to a decanter to separate the hydrogenation product into an aqueous phase comprising water and ethanol and an organic phase comprising ethyl acetate. The organic phase is reduced with hydrogen in the presence of a catalyst to obtain a crude reaction mixture comprising the alcohol, in particular ethanol, which may be separated from the crude reaction mixture. Thus, ethanol may be produced from acetic acid through an ethyl acetate intermediate without an esterification step. This may reduce the recycle of ethanol in the hydrogenolysis process and improve ethanol productivity. | 06-20-2013 |
| 20130165700 | Catalysts Comprising Secondary Noble Metals and Process for Producing Ethanol - The present invention relates to a catalyst comprising platinum, tin and a secondary noble metal selected from the group consisting of rhodium, palladium, gold and iridium. The catalyst may be on a support. In some embodiments, the support may comprise calcium. The catalyst is used for converting acetic acid to ethanol. | 06-27-2013 |
| 20130165701 | Catalysts Having Promoter Metals and Process for Producing Ethanol - The present invention relates to a catalyst. The catalyst is used for converting acetic acid to ethanol. The catalyst comprises platinum, tin, a base metal selected from calcium and/or tungsten and a promoter metal selected from barium, potassium and/or cesium. | 06-27-2013 |
| 20130165702 | Calcination of Modified Support to Prepare Hydrogenation Catalysts - The present invention relates to a catalyst having an amorphous support and one or more active metals. The amorphous support may comprise a support material and an amorphous support modifier, which adjusts the acidity of the support material. In preparing the amorphous catalyst, post-synthesis treatment, i.e. calcination, may be used to adjust the catalyst performance while converting acetic acid to ethanol. | 06-27-2013 |
| 20130165703 | Hydrogenation Catalysts Having An Amorphous Support - The present invention relates to a catalyst having an amorphous support and one or more active metals. The amorphous support may comprise a support material and an amorphous support modifier, which adjusts the acidity of the support material. In preparing the amorphous catalyst, post-synthesis treatment, i.e. calcination, may be used to adjust the catalyst performance while converting acetic acid to ethanol. | 06-27-2013 |
| 20130165704 | PROCESS FOR PRODUCING ETHANOL IN A REACTOR HAVING A CONSTANT TEMPERATURE - The present invention, in one embodiment, relates to a process for producing ethanol. The process comprises the step of reacting acetic acid and hydrogen in a shell and tube reactor and in the presence of a catalyst under conditions effective to form a crude ethanol product. The crude ethanol product comprises ethanol, acetic acid, ethyl acetate, and water. The process further comprises the step of recovering ethanol from the crude ethanol product. The shell and tube reactor comprises one or more tubes, each containing a heat transfer medium, and a shell comprising the catalyst. Preferably, the shell and tube reactor has an inlet temperature and an outlet temperature and the inlet temperature is substantially similar to or less than the outlet temperature. | 06-27-2013 |
| 20130172632 | Process for Promoting Catalyst Activity for Ethyl Acetate Conversion - The process of the current invention relates to the production of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid and ethyl acetate in the presence of a catalyst. Conversion of ethyl acetate may be improved by adding water to the reactor. At least 0.01 wt. % water may be added to the reactor. The crude ethanol product is separated in one or more columns to yield an ethanol product. | 07-04-2013 |
| 20130172633 | Process For Producing Ethanol From Impure Methanol - In a first embodiment, the present invention relates to a process for producing ethanol. The process comprises the step of contacting a carbon monoxide feed and an impure methanol feed in a reactor under conditions effective to produce a crude acetic acid product. The impure methanol feed comprises more than 0.15 wt. % of impurities. The process further comprises the step of separating the crude acetic acid product to form an intermediate acetic acid product and at least one derivative stream. The intermediate acetic acid product may comprise acetic acid and at least one of the impurities from the impure methanol feed. The process further comprises the step of hydrogenating at least a portion of the intermediate acetic acid product to produce a crude ethanol product. The hydrogenation is preferably conducted over a catalyst. | 07-04-2013 |
| 20130178661 | Hydrogenation Catalysts with Cobalt-Modified Supports - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support that comprises cobalt. | 07-11-2013 |
| 20130178662 | Modified Catalyst Supports - The present invention relates to modified catalyst supports, to processes for making modified catalyst supports, and to chemical processes employing catalysts that comprise such modified catalyst supports. The modified catalyst support comprises a first metal, a second metal and a support modifier on a support, wherein the support modifier comprises a support modifier metal selected from the group consisting of tungsten, molybdenum, vanadium, niobium, and tantalum. | 07-11-2013 |
| 20130178663 | COBALT-CONTAINING HYDROGENATION CATALYSTS AND PROCESSES FOR MAKING SAME - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises cobalt, precious metal and one or more active metals on a modified support. | 07-11-2013 |
| 20130178664 | Hydrogenation Catalysts - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support. The modified support may comprise cobalt tungstate. | 07-11-2013 |
| 20130178665 | Processes For Making Catalysts With Acidic Precursors - The present invention relates to catalysts, to processes for making catalysts with acidic precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support. | 07-11-2013 |
| 20130178666 | Processes for Making Catalysts With Metal Halide Precursors - The present invention relates to catalysts, to processes for making catalysts with halide containing precursors and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support. | 07-11-2013 |
| 20130178667 | Processes for Making Catalysts - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a support, optionally a modified support. | 07-11-2013 |
| 20130178668 | Multifunctional Hydrogenation Catalysts - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The multifunctional catalysts are preferably used for converting acetic acid and ethyl acetate to ethanol. The catalyst is effective for providing an acetic acid conversion greater than 20% and an ethyl acetate conversion greater than 0%. The catalyst comprises a precious metal and one or more active metals on a modified support. The modified support includes a metal selected from the group consisting of tungsten, vanadium, and tantalum, provided that the modified support does not contain phosphorous. | 07-11-2013 |
| 20130178669 | Cobalt and Tin Hydrogenation Catalysts - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid and ethyl acetate to ethanol. The catalyst comprises a precious metal, tin and cobalt, wherein molar ratio of cobalt to tin is at least 11:1. | 07-11-2013 |
| 20130178670 | HYDROGENATION CATALYSTS WITH BULK MULTIPLE OXIDATED SUPPORTS - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid and ethyl acetate to ethanol. The catalyst comprises an extruded modified support, and a precious metal. The processes for making the catalysts comprises modifying the catalyst, extruding the catalyst, and impregnating the precious metal onto the catalyst. | 07-11-2013 |
| 20130184500 | Process for Acetal Removal In the Purification of a Crude Ethanol Product - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and hydrolyze acetal impurities by the addition of an acid stream. | 07-18-2013 |
| 20130184501 | HYDROGENATION CATALYSTS WITH ACIDIC SITES - The present invention relates to catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises acidic sites and two or more metals. The catalyst has acidic sites on the surface and the balance favors Lewis acid sites. | 07-18-2013 |
| 20130184502 | REDUCED WATER CONTENT PREPARATION PROCESS FOR HYDROGENATION CATALYSTS - The present invention relates to processes for making catalysts, to catalyst prepared by a specific process, and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises less than 20% solvent prior to calcining. | 07-18-2013 |
| 20130197278 | Process For Manufacturing Ethanol Using A Metallic Catalyst Supported on Titania - The present invention relates to a process for producing ethanol by contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions including a temperature from 125° C. to 350° C. with a catalyst composition, wherein the catalyst composition comprises from 1.5 wt. % to 3 wt. % active metals on a titania support, said active metals comprising at least one Group VIII metal and an excess molar amount of tin, relative to the at least one Group VIII metal. | 08-01-2013 |
| 20130204049 | Process for Producing Ethanol Using a Molar Excess of Hydrogen - The present invention relates to a process for the production of ethanol using a molar excess of hydrogen. A mixed feed of acetic acid and ethyl acetate is fed to a reactor to be converted to ethanol. Hydrogen flow is increased to avoid a negative conversion of ethyl acetate. | 08-08-2013 |
| 20130204050 | Hydrogenation Process with Reduced Residence Time for Vapor Phase Reactants - The present invention is directed to the separation of ethanol from a crude ethanol product obtained from the vaporization and hydrogenation of acetic acid using reduced residence time for the vapor phase reactants between exiting the vaporizer and entering the reactor. The crude ethanol product is separated in at least one column to recover an ethanol product. | 08-08-2013 |
| 20130211150 | Chemisorption of Ethyl Acetate During Hydrogenation of Acetic Acid to Ethanol - A hydrogenation catalyst and process using the catalyst for converting a mixture comprising acetic acid and ethyl acetate to ethanol at a first temperature, and the catalyst desorbs ethyl acetate, in the absence of hydrogen, at a second temperature that is greater than the first temperature. The catalyst has a suitable chemisorption of ethyl acetate at the first temperature in the absence of hydrogen. In one embodiment, the first temperature ranges from 125° C. to 350° C. and the second temperature ranges from 300° C. to 600° C. The catalyst comprises one or more active metals or oxide thereof on a support that comprises tungsten or an oxide thereof. The one or more active metals are selected from the group consisting of cobalt, copper, gold, iron, nickel, palladium, platinum, iridium, osmium, rhenium, rhodium, ruthenium, tin, zinc, lanthanum, cerium, manganese, chromium, vanadium, and molybdenum. | 08-15-2013 |
| 20130211151 | Process for Producing Ethanol Using Acetic Acid from a Carbonylation Process - The present invention relates to a process for the production of ethanol. The process comprises the step of hydrogenating acetic acid in a hydrogenation reactor in the presence of a catalyst and under conditions effective to form a crude ethanol product. The acetic acid may be obtained from a carbonylation system. The process further comprises the step of separating, in at least one column, at least a portion of the crude ethanol product into a distillate and a residue. The distillate comprises ethanol, water, and ethyl acetate. The residue comprises acetic acid and water. The process preferably comprises the step of directing at least a portion of the residue to at least one column of the carbonylation system. The process further comprises the step of separating the first distillate to form a purified ethanol product. | 08-15-2013 |
| 20130211152 | Ethanol Manufacturing Process Over Catalyst with Cesium and Support Comprising Tungsten or Oxides Thereof - The present invention relates to a process for producing product comprising ethanol which comprises contacting a feedstock comprising acetic acid and hydrogen in a reaction zone at hydrogenation conditions with a catalyst composition comprising at least one active metal that may include a Group VIII metal and tin and from 0.01 to 0.5 wt. % cesium on a support comprising tungsten or oxides thereof. | 08-15-2013 |
| 20130217924 | METHOD FOR PRODUCING HIGHER ALCOHOL - Provided is a method of producing a higher alcohol, comprising a step of hydrogenating a lipid obtained by culturing | 08-22-2013 |
| 20130225876 | Hydrogenation Catalyst Using Multiple Impregnations of an Active Metal Solution - A process for producing a catalyst that results in improved yields and productivity to ethanol. The process involves the steps of preparing a solution comprising one or more precursors to an active metal and impregnating a first portion of the solution on a support to form a first impregnated support. The first impregnated support is calcined to form a first calcined support and a second portion of the solution is impregnated on the first calcined support. The catalyst is useful for hydrogenating alkanoic acids to ethanol. | 08-29-2013 |
| 20130225877 | Catalyst Having Support Containing Tin and Process for Manufacturing Ethanol - The present invention relates to a catalyst composition having a support that contains tin. The catalyst is used for converting acetic acid to ethanol. The catalyst may also comprise one or more active metals and a support modifier. | 08-29-2013 |
| 20130225878 | Cobalt/ Tin Catalyst for Producing Ethanol - The present invention relates to a process for the formation of alcohols from alkanoic acids, the steps of the process comprising: contacting a feed stream containing the alkanoic acid and hydrogen at an elevated temperature with a hydrogenating catalyst comprising from 3 to 25 wt. % of active metals on a support, wherein the active metals comprise cobalt and tin. | 08-29-2013 |
| 20130231510 | Processes for Making Ethanol From Acetic Acid - A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of first metal, a silicaceous support, and at least one support modifier. Preferably, the first metal is selected from the group consisting of copper, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, titanium, zinc, chromium, rhenium, molybdenum, and tungsten. In addition the catalyst may comprise a second metal preferably selected from the group consisting of copper, molybdenum, tin, chromium, iron, cobalt, vanadium, tungsten, palladium, platinum, lanthanum, cerium, manganese, ruthenium, rhenium, gold, and nickel. | 09-05-2013 |
| 20130245332 | Promoters for Cobalt-Tin Catalysts for Reducing Alkanoic Acids - The present invention relates to a process for the formation of an alcohol from an alkanoic acid, the steps of the process comprising: contacting a feed stream containing the alkanoic acid and hydrogen at an elevated temperature with a hydrogenating catalyst comprising from 3 to 25 wt. % of active metals comprising tin and cobalt and a metal promoter selected from the group consisting of noble metals or first metal, the first metal selected from the group of barium, cesium and potassium. | 09-19-2013 |
| 20130245333 | Ethanol Manufacturing Process Over Catalyst Having Improved Radial Crush Strength - Acetic acid is hydrogenation in the presence of a catalyst comprising one or more active metals on a silica support, wherein the catalyst has a radial crush strength of at least 4 N/mm. The one or more active metals may include cobalt, copper, gold, iron, nickel, palladium, platinum, iridium, osmium, rhenium, rhodium, ruthenium, tin, zinc, lanthanum, cerium, manganese, chromium, vanadium, molybdenum and mixtures thereof. Radial crush strength may be improved by steam treating the catalyst support prior to the loading of the one or more active metals. | 09-19-2013 |
| 20130245334 | Stacked Bed Reactor with Diluents for Producing Ethanol - The present invention relates to processes for producing ethanol using a stacked bed reactor comprising a first bed comprising a first hydrogenation catalyst and a second bed comprising a second hydrogenation catalyst and one or more diluents. The diluents may be selected from the group consisting of silica, silica-alumina and mixtures thereof. | 09-19-2013 |
| 20130245335 | Acetic Acid Hydrogenation over a Group VIII Metal Calcined Catalyst Having a Secondary Promoter - The present invention relates to a process for hydrogenating feedstock comprising acetic acid in the presence of hydrogen to product comprising ethanol in a reaction zone under hydrogenation conditions over a catalyst composition promoted with cobalt, rhodium, cesium or a combination thereof on a previously calcined composition comprising at least one Group VIII metal and tin on a support material. | 09-19-2013 |
| 20130245336 | Rhodium/ Tin Catalysts and Processes for Producing Ethanol - The present invention relates to processes for producing ethanol using a catalyst comprising rhodium and tin on a support. The rhodium and tin may be present in a molar ratio of 20:80 to 80:20. | 09-19-2013 |
| 20130245337 | Hydrogenation Catalysts Prepared from Polyoxometalate Precursors and Process for Using Same to Produce Ethanol While Minimizing Diethyl Ether Formation - The present invention relates to hydrogenation catalysts prepared from polyoxometalate precursors. The polyoxometalate precursors introduce a support modifier to the catalyst. The catalysts are used for hydrogenating alkanoic acids and/or esters thereof to alcohols with relatively low ether formation, preferably with conversion of the ester coproduct. The catalyst may also comprise one or more active metals. | 09-19-2013 |
| 20130245338 | Hydrogenation Catalysts Prepared from Polyoxometalate Precursors and Process for Using Same to Produce Ethanol - The present invention relates to hydrogenation catalysts prepared from polyoxometalate precursors. The polyoxometalate precursors introduce a support modifier to the catalyst. The catalysts are used for hydrogenating alkanoic acids and/or esters thereof to alcohols, preferably with conversion of the ester coproduct. The catalyst may also comprise one or more active metals. | 09-19-2013 |
| 20130261349 | Hydrogenation Catalysts and Processes for Making Same - A catalyst composition comprising tin and optionally a second metal for use in the production of alcohols such as ethanol from carboxylic acids such as acetic acid. An acidic solution such as nitric acid is utilized in the preparation of the catalyst according to one embodiment of the present invention to better solubilize an organometallic tin precursor resulting in the formation of catalysts having particularly high selectivity to ethanol. | 10-03-2013 |
| 20130261350 | CATALYST FOR HYDROGENATION OF OXALIC ESTER TO ETHANOL, METHOD OF PREPARING THE CATALYST, AND METHOD OF USING THE SAME - A catalyst including: a support, the support including a mixture of SiO | 10-03-2013 |
| 20130331619 | Processes for Producing Anhydrous Ethanol Compositions - The present invention is to a process for producing a anhydrous ethanol composition comprising hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product; separating in a first column at least a portion of the crude ethanol product into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid; separating in a second column at least a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water; separating in a third column at least a portion of the second residue into a third distillate comprising ethanol and residual water and a third residue comprising separated water; and dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition. The anhydrous ethanol composition, as formed, comprises less than 1 wt. % water. | 12-12-2013 |
| 20130345478 | Process for Making Ethanol from Acetic Acid Using Acidic Catalysts - A process for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of a catalyst comprises a first metal on an acidic support. The acidic support may comprise an acidic support material or may comprise an support having an acidic support modifier. The catalyst may be used alone to produced ethanol via hydrogenation or in combination with another catalyst. In addition, the crude ethanol product is separated to obtain ethanol. | 12-26-2013 |
| 20140039225 | PROCESS FOR THE PRODUCTION OF ALCOHOL FROM A CARBONACEOUS FEEDSTOCK - The present invention relates to an improved process for the production of ethanol from a carbonaceous feedstock; wherein the carbonaceous feedstock is first converted to synthesis gas which is then converted to ethanoic acid, which is then esterified and which is then hydrogenated to produce ethanol. | 02-06-2014 |
| 20140046100 | Processes for Maximizing Ethanol Formation In the Hydrogenation of Acetic Acid - In one embodiment, the invention is to a process for purifying a crude ethanol product. The process comprises the step of hydrogenating acetic acid in a reactor in the presence of a catalyst to form the crude ethanol product. The process further comprises the step of separating at least a portion of the crude ethanol product in a purification zone. The purification zone preferably comprises a first column, which yields a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid. The at least a portion of the crude ethanol product has a residence time from the reactor to the purification zone from 5 minutes to 5 days. | 02-13-2014 |
| 20140051894 | Silica Enhanced Support for Hydrogenation Catalysts and Processes for Producing Ethanol - The present invention relates to a catalyst. The catalyst is used for converting acetic acid to ethanol. The catalyst comprises one or more active metals on an alkali metal silicate support or on an alkaline earth metal silicate support, wherein the support further comprises a silica enhancer and a support modifier. | 02-20-2014 |
| 20140058139 | Process for Heat Integration for Ethanol Production and Purification Process - Ethanol production from the hydrogenation of acetic acid requires energy to drive the hydrogenation reaction and the purification of the crude ethanol product. Heat integration process to recover heat from one part of the production process to be used within the process improves efficiencies and reduces costs. | 02-27-2014 |
| 20140094629 | Process for Recovering Ethanol with Sidedraws to Regulate C3+ Alcohols Concentrations - Purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidedraws to regulate C | 04-03-2014 |
| 20140121421 | Hydrogenation Reaction Conditions To Produce Ethanol and Reduce Ethyl Acetate Formation - The present invention is directed to processes for selective formation of ethanol from acetic acid by hydrogenating acetic acid in the presence of a hydrogenation catalyst, wherein the temperature and liquid hourly space velocity (LHSV) are controlled to maximize acetic acid conversion and to minimize selectivity to ethyl acetate. The hydrogenation catalyst comprises a metal selected from the group consisting of platinum, palladium, gold, iridium, osmium, and rhodium on a support modified by at least one support modifier selected from the group consisting of (i) alkaline earth metal oxides, (ii) alkali metal oxides, (iii) alkaline earth metal metasilicates, (iv) alkali metal metasilicates, (v) Group IIB metal oxides, (vi) Group IIB metal metasilicates, (vii) Group IIIB metal oxides, (viii) Group IIIB metal metasilicates, and mixtures thereof. | 05-01-2014 |
| 20140121422 | Hydrogenation Reaction Conditions For Producing Ethanol - The present invention relates to processes for producing ethanol from a feed stream comprising hydrogen and acetic acid and/or ethyl acetate. The reaction occurs at a temperature greater than 225° C. and the feed stream has a liquid hourly space velocity of at least 0.2 hr | 05-01-2014 |
| 20140128641 | Process for Recovering Ethanol - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude ethanol products are employed to allow recovery of ethanol and remove impurities. | 05-08-2014 |
| 20140128642 | Process for Vapor Phase Hydrogenation - A process for selective formation of ethanol from acetic acid includes contacting a feed stream containing acetic acid and hydrogen at an elevated temperature with catalyst comprising platinum and tin on a high surface area silica promoted with calcium metasilicate. Selectivities to ethanol of over 85% are achieved at 280° C. with catalyst life in the hundreds of hours. | 05-08-2014 |
| 20140142350 | Olefin Hydration For Hydrogenation Processes - Processes for contacting an olefin feed stream, preferably comprising ethylene, with at least one stream from an ethanol production process that comprises water. The hydration reaction produces ethanol to improve overall ethanol yields from the hydrogenation acetic acid and esters thereof. | 05-22-2014 |
| 20140142351 | Combined Column for Separating Products of Different Hydrogenation Reactors - Recovery of ethanol from a crude product comprising ethyl acetate obtained from the hydrogenation of acetic acid. The crude product is separated to form an organic stream that may be subjected to hydrogenolysis to form ethanol. The organic phase may comprise ethyl acetate is reacted via hydrogenolysis form ethanol that may be directly or indirectly fed to the separation zone or the hydrogenation reactor. | 05-22-2014 |
| 20140163263 | Group VIII Metal Hydrogenolysis Catalysts Having Low Selectivity to Ethers - Group VIII metal containing catalysts used in processes for producing ethanol from ethyl acetate by reacting the ethyl acetate with hydrogenation. The Group VIII metal containing catalyst has a selectivity to ether, especially diethyl ether, that is very low. The process may be integrated with an ethyl acetate production process, such as esterification, hydrogenation, or dehydrogenation. | 06-12-2014 |
| 20140179957 | Ethanol Refining Process Using Intermediate Reboiler - The present invention relates to processes for producing and recovering ethanol using an intermediate reboiler. An intermediate stream may be withdrawn from a removal zone of a distillation column and recirculated through the intermediate reboiler to the distillation column. The distillation column may also comprise a bottoms reboiler. | 06-26-2014 |
| 20140221700 | SURFACE MODIFIED METALLIC FOAM BODY, PROCESS FOR ITS PRODUCTION AND USE THEREOF - A metallic foam body containing an alloy skin which is up to 50 μm thick can be obtained by a process including (a) providing a metallic foam body comprising a first metallic material; (b) applying a second metallic material which contains a first metallic compound that is leachable as such and/or that can be transformed by alloying into a second metallic compound that is leachable and different from the first metallic compound on a surface of the foam body (a), by coating the metallic foam body with an organic binder and a powder of the second metallic material; (c) forming a skin on foam body (b) by alloying the first and the second metallic material; and (d) leaching out with a leaching agent at least a part of the first and/or the second metallic compound. | 08-07-2014 |
| 20140275641 | ETHANOL AND ETHYL ACETATE PRODUCTION USING AN ACETIC ACID AND ACETIC ANHYDRIDE MIXED FEED - Ethanol production processes using a mixed feed comprising from 20 to 95 wt. % acetic acid, from 5 to 80 wt. % acetic anhydride, and from 0 to 20 wt. % esters selected from the group consisting of methyl acetate, ethyl acetate, or mixtures thereof are disclosed herein. The process comprises contacting the mixed feed with hydrogen in the vapor phase in a reactor in the presence of a catalyst comprising tin, cobalt, platinum, and combinations thereof to form a crude ethanol product having an ethanol to water molar ratio of greater than 1 and separating the crude ethanol product in one or more distillation columns to yield an ethyl acetate stream and an ethanol stream. The process may be integrated with an acetic anhydride production process to obtain further economic savings. | 09-18-2014 |
| 20140330050 | PROCESS FOR THE PREPARATION OF HIGHER ALCOHOLS - Process for production of a higher alcohol product from an alcohol synthesis gas comprising hydrogen, carbon monoxide, carbon dioxide, and lower alcohols, comprising a carbon dioxide and optional alkane removal step. Use a stripper using synthesis gas as stripping gas to purify the liquid phase containing the lower and highers alcohols, in order to strip the lower alcohol from the alcohol stream. Synthesis gas used for stripping is used as recycle stream in the reactor. | 11-06-2014 |
| 20150025281 | Process for Producing Ethanol Using Hydrogenation Catalysts - The present invention relates to catalysts, to processes for making catalysts and to chemical processes employing such catalysts. The catalysts are preferably used for converting acetic acid to ethanol. The catalyst comprises a precious metal and one or more active metals on a modified support. The modified support may comprise cobalt tungstate. | 01-22-2015 |
| 20150031924 | Recovering Ethanol with Sidestreams to Regulate C3+ Alcohols Concentrations - This invention relates to purification and/or recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. Separation and purification processes of a crude ethanol mixture are employed to allow recovery of ethanol and remove impurities. In particular, the process involves one or more sidestreams to regulate C | 01-29-2015 |
| 20150094499 | CATALYST AND METHOD OF MANUFACTURE - A method for making a solid material which is useful as a heterogeneous catalyst including the steps of: forming at least one copper oxide suspension comprising solid particles of copper oxide in a liquid; forming at least one carrier suspension comprising solid particles of a carrier material in a liquid; combining the copper oxide suspension and the carrier suspension; subjecting the combined suspensions to mechanical energy; separating the suspension liquid from the solid particles in the combined suspension; and subjecting the solid material to a thermal decomposition step. A catalyst made by the method has a BET surface area greater than 150 m | 04-02-2015 |
| 20150099904 | Process To Recover Alcohol From An Ethyl Acetate Residue Stream - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. The ethanol product is recovered from the residue stream. | 04-09-2015 |
| 20150099905 | Process to Recover Alcohol with Reduced Water From Overhead of Acid Column - A process for recovering ethanol obtained from the hydrogenation of acetic acid. The crude ethanol product is separated in a column to produce a distillate stream comprising acetaldehyde and ethyl acetate and a residue stream comprising ethanol, acetic acid, ethyl acetate and water. The ethanol product is recovered from the residue stream. | 04-09-2015 |
| 20150133701 | Integrated Steam Methane Reformer and Hydrogenation of Acetic Acid to Produce Ethanol - A process is disclosed for integrating a steam methane reformer to produce hydrogen that is used for converting acetic acid and/or ethyl acetate to ethanol. The process may use a methane-containing stream obtained from a stranded natural gas or associated gas source. The process water from the hydrogenation reaction is used to saturate the methane-containing stream. The process water comprises water and oxygenates, wherein the maximum amount of oxygenates is less than or equal to 10 wt. %. Processes for integrating fuel sources, steam and electricity are also disclosed. | 05-14-2015 |
| 20150291491 | Process For The Production Of A Fatty Alcohol From A Fatty Acid - In a process for producing fatty alcohol, fatty acid is subjected to esterification with a lower alkanol to form a stream of lower alkyl fatty acid ester(s). The stream is vaporized and then subjected to hydrogenation. The stream is then subjected to transesterification in a wax ester reactor to convert at least a portion of the lower alkyl fatty acid ester(s) to lower alkanol and wax ester(s). The resulting stream is then separated to yield a fatty alcohol(s) steam, a wax ester(s) stream, and an overhead stream comprising fatty alkanol(s) and alkane. The overhead stream is reacted in a wax ester reactor to convert at least a portion of the lower alkyl fatty acid ester to lower alkanol and wax ester(s). The wax ester(s) formed from the alkane is separated, along with any water and/or lower alkanol present. | 10-15-2015 |
| 20150307421 | Hydrogenation Catalysts Comprising a Mixed Oxide Comprising a Promoter Metal - A process is disclosed for producing ethanol, comprising contacting hydrogen and a feed stream comprising acetic acid in a reactor in the presence of a catalyst comprising a binder and a mixed oxide comprising a promoter metal and tin, and preferably also comprising cobalt. The promoter metal is selected from the group consisting of rhenium, ruthenium, rhodium, palladium, osmium, iridium, platinum, and combinations thereof. The feed stream may comprises pure acetic acid or may comprise a mixture of 50 to 95 wt. % acetic acid and 5 to 50 wt. % ethyl acetate. | 10-29-2015 |
| 20150307422 | Process for Producing Ethanol With Zonal Catalysts - A process is disclosed for producing ethanol comprising contacting reactants comprising acetic acid and hydrogen in a reactor in the presence of a first catalyst in a first zone and a second catalyst in a second zone. The first catalyst is a mixed oxide comprising tin and at least one of cobalt or nickel. The second catalyst may be either: i) a supported Group VIII hydrogenation catalyst; ii) a copper-based catalyst; and iii) a secondary mixed oxide catalyst, wherein the secondary mixed oxide catalyst is different than the mixed oxide catalyst of the first zone. | 10-29-2015 |
| 20150307423 | Hydrogenation Catalysts Comprising a Mixed Oxide and Processes for Producing Ethanol - A process is disclosed for producing ethanol, comprising contacting acetic acid and hydrogen in a reactor in the presence of a catalyst comprising a binder and a mixed oxide comprising cobalt and preferably tin, wherein the mixed oxide is present in an amount from 60 to 90 wt. %, based on the total weight of the catalyst. | 10-29-2015 |
| 20160137568 | PROCESS FOR PRODUCING FATTY ALCOHOLS FROM FATTY ACID METHYL ESTER - Subject-matter of the invention is a process for producing fatty alcohols by catalytic hydrogenation of fatty acid methyl ester (FAME), in which the FAME initially is hydrogenated to fatty alcohol (FA). The fractions of non-converted FAME remaining in the hydrogenation product are converted to wax ester and methanol in a succeeding transesterification step with FA. According to the invention, catalysts on the basis of magnesium oxide or hydrotalcite are used. After separating the methanol and the FA as target product, a stream enriched in wax ester is recirculated to the hydrogenation reactor. | 05-19-2016 |
| 20190144365 | SELECTIVE REDUCTION OF ESTERS TO ALCOHOLS | 05-16-2019 |
