| Patent application number | Description | Published |
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| 20110185628 | PROCESSES FOR PRODUCING DENATURED ETHANOL - In one embodiment, the invention is to a process for producing a denatured ethanol composition comprising the steps of hydrogenating an acetic acid feed in the presence of a catalyst to form a crude ethanol product comprising ethanol, and at least one denaturant and separating the crude ethanol product in one or more separation units into a denatured ethanol composition and one or more derivative streams. The denatured ethanol composition comprises from 0.01 wt. % to 40 wt % denaturant, based on the total weight of the denatured ethanol composition. | 08-04-2011 |
| 20110185630 | ETHANOL COMPOSITIONS - In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 95 wppm to 1,000 wppm isopropanol. | 08-04-2011 |
| 20110190531 | PROCESS FOR PRODUCING AN ETHYL ACETATE SOLVENT AND CO-PRODUCTION OF ETHANOL - Recovery of an ethyl acetate solvent, optionally with the recovery of ethanol, from a crude product obtained from the hydrogenation of acetic acid. Separation and purification processes of the crude product are employed to allow recovery of the ethyl acetate solvent. | 08-04-2011 |
| 20110190532 | PROCESS FOR PRODUCING AN ESTER FEED STREAM FOR ESTERS PRODUCTION AND CO-PRODUCTION OF ETHANOL - Recovery of an ester feed stream, optionally with the 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 the ester feed stream and for integration of the ester feed stream with an esters production process. The composition of the ester feed stream may vary, but at least comprises ethyl acetate and ethanol. The ester feed stream may be fed to one or more locations within the esters production process depending on the composition of the ester feed stream. | 08-04-2011 |
| 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 |
| 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 |
| 20110275861 | HYDROLYSIS OF ETHYL ACETATE IN ETHANOL SEPARATION PROCESS - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid by hydrolyzing a portion of the crude ethanol product or one or more derivative streams obtained therefrom. The one or more derivative streams comprise ethyl acetate and the hydrolyzed stream is directly or indirectly fed to the distillation zone or the hydrogenation reactor. | 11-10-2011 |
| 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 |
| 20120010436 | Separation of Vapor Crude Alcohol Product - Recovery of alcohol, in particular ethanol, by separating a vapor crude alcohol product obtained from the hydrogenation of acetic acid using a low energy process. The vapor crude ethanol product is separated in a column to produce a distillate stream comprising ethanol and at least one non-condensable gas. The vapor crude ethanol product may pass through a membrane before the first distillation column to separate the at least one non-condensable gas from the ethanol. The ethanol product is subsequently recovered from the distillate stream. | 01-12-2012 |
| 20120010437 | Liquid Esterification For 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 returning acetaldehyde separated from the crude ethanol product to the reactor. | 01-12-2012 |
| 20120010438 | Reduced Energy Alcohol Separation Process - Recovery of alcohols, in particular ethanol, from a crude ethanol product obtained from the hydrogenation of acetic acid using a reduced energy process. The crude ethanol product may be fed to a distillation column in which a substantial portion of the water is removed with the acetic acid in the residue. The ethanol product is obtained from the distillate. | 01-12-2012 |
| 20120010440 | Separating Ethanol and Ethyl Acetate Under Low Pressure Conditions - A crude ethanol product obtained from the hydrogenation of acetic acid comprises ethanol and ethyl acetate. Using a distillation column operated at a pressure of from 0.1 to 100 kPa, the ethyl acetate and ethanol may be effectively separated. In addition, maintaining the amount of water that is fed to the distillation column to an amount less than 10 wt. %, based on the weight of all components fed to the distillation column, provides an energy benefit. | 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 |
| 20120030996 | ETHANOL/FUEL BLENDS FOR USE AS MOTOR FUELS - An ethanol/fuel blend composition. The ethanol/fuel blend composition includes an ethanol composition including at least 92 wt. % ethanol, and from 95 wppm to 1,000 wppm isopropanol and a fuel. | 02-09-2012 |
| 20120030997 | DENATURED FUEL ETHANOL COMPOSITIONS FOR BLENDING WITH GASOLINE OR DIESEL FUEL FOR USE AS MOTOR FUELS - A denatured fuel ethanol composition for blending with fuels, including gasoline and diesel fuel. The composition includes an ethanol composition comprising at least 92 wt. % ethanol; and from 95 wppm to 1,000 wppm isopropanol; and at least 1.96 vol. % fuel denaturant. | 02-09-2012 |
| 20120035400 | PROCESS FOR PURIFYING ETHANOL - In one embodiment, the invention is to a process for producing ethanol. The process comprises the step of hydrogenating an acetic acid feed stream in a first reactor to form a crude ethanol product. The crude ethanol product may comprise, among other components, ethanol, acetaldehyde, and residual acetic acid. The process further comprises the step of recovering acetaldehyde from the crude ethanol product. The process further comprises the steps of feeding a first portion of the recovered acetaldehyde to the first reactor and reacting the first portion of the recovered acetaldehyde in the first reactor to form additional ethanol. In addition, the inventive process may comprise the steps of feeding a second portion of the recovered acetaldehyde to a second reactor and reacting the second portion of the recovered acetaldehyde in the second reactor to faun an additional product. | 02-09-2012 |
| 20120036769 | INTEGRATED PROCESS FOR PRODUCING ALCOHOLS FROM A MIXED ACID FEED - Processes for producing alcohols such as ethanol and propanol from a mixed acid feedstock in an integrated process. In one embodiment, the process comprises the step of carbonylating methanol in the presence of a carbonylation catalyst to form a mixed acid feedstock comprising acetic acid and one or more higher acids, preferably comprising propionic acid. The mixed acid feed is hydrogenated in the presence of a hydrogenation catalyst to form a crude alcohol product comprising ethanol and one or more higher alcohols, preferably including propanol. | 02-16-2012 |
| 20120041075 | ETHANOL COMPOSITIONS - In one embodiment, the present invention is to an ethanol composition comprising at least 85 wt. % ethanol and from 95 wppm to 850 wppm isopropanol. | 02-16-2012 |
| 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 |
| 20120273338 | Process for Removing Water From Alcohol Mixtures - A process for removing water from an alcohol mixture, such as an ethanol mixture in the production of ethanol by hydrogenating acetic acid. The water is removed from a distillate of a first column using an adsorption unit, membrane, extractive column distillation, or a combination thereof. | 11-01-2012 |
| 20120273339 | Water Separation from Crude Alcohol Product - Recovery of alcohol, in particular ethanol, from a crude product obtained from the hydrogenation of acetic acid using various combinations of membranes and/or distillation columns. | 11-01-2012 |
| 20120275989 | 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. | 11-01-2012 |
| 20120277480 | Separation Process Having an Alcohol Sidestream - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. The crude ethanol product is fed to a distillation column to yield an ethanol sidestream. | 11-01-2012 |
| 20120277482 | Removing Water from an Acetic Acid Stream in the Production of Alcohols - A process for removing water from an acetic acid stream in the production of alcohols, such as ethanol produced by hydrogenating acetic acid. Water is removed from the acetic acid stream using an adsorption unit, membrane, molecular sieves, or a combination thereof, to form a return stream. The return stream may be recycled to the hydrogenation reactor. | 11-01-2012 |
| 20120277483 | Water Control In Alcohol Production From Hydrogenation - Recovery of alcohol, in particular ethanol, from a crude product obtained from the hydrogenation of a feed stream comprising a carbonylation stock selected from the group consisting of acetic acid, and acetic acid and an ester thereof. The hydrogenation reaction produces a reactor product that is dehydrated to produce a dried product stream that comprises less water than the feed stream. This controls the additional water fed to the hydrogenation unit. | 11-01-2012 |
| 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 |
| 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 |
| 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 |
| 20120323048 | 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. | 12-20-2012 |
| 20120323049 | Distillation of Crude Alcohol Product Using Entrainer - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using a low energy process and an entrainer. The crude ethanol product is separated in an distillation column to produce a distillate stream comprising the entrainer. The ethanol product is recovered from the residue stream. | 12-20-2012 |
| 20120323050 | Extractive Distillation of Crude Alcohol Product - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using an extractive distillation column. The column yields a residue that comprises ethanol, acetic acid, and the extractive agent. The extractive agent may be water and may be separated from the residue and returned to the extractive distillation column. | 12-20-2012 |
| 20130032466 | ETHANOL SEPARATION PROCESS HAVING STRIPPING SECTION FOR REDUCING ACETALS - To reduce acetal concentrations when separating ethanol from a crude product in one or more distillation column, at least one of the columns has a stripping section that comprises at least 40 stages to favor 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 |
| 20130032467 | VAPOR SEPARATION IN ALCOHOL PRODUCTION - Two or more vapor-liquid separators are used in a process for removing at least one non-condensable gas from a crude alcohol mixture prepared by hydrogenating alkanoic acid and/or esters thereof. The vapor-liquid separators may comprise flashers or knock-out pots and are suitable for removing non-condensable gas, including those gases that are dissolved in the liquid. The multiple vapor-liquid separators may be in series prior to any separation of organic components. In addition, there may be a vapor-liquid separator before and after a distillation column for treating the feed to the column. | 02-07-2013 |
| 20130035516 | Process for Purifying a Crude Ethanol Product - 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 first reaction zone in the presence of a first catalyst to form the crude ethanol product comprising ethanol, acetaldehyde, acetic acid, water, and acetal. The process further comprises the step of separating at least a portion of the crude ethanol product into a refined ethanol stream and a by-product stream. The refined ethanol stream comprises ethanol and acetaldehyde; and the by-product stream comprises acetic acid and a substantial portion of the water from the crude ethanol product. The process further comprises the step of hydrolyzing in a second reaction zone at least a portion of the acetal. | 02-07-2013 |
| 20130035517 | PRODUCTION OF ALCOHOLS - A process is described for producing an alcohol product, in which (a) a first feed composition comprising acetic acid is converted to a product comprising acetone; and (b) a second feed composition comprising at least part of the acetone produced in (a) is hydrogenated in the presence of a catalyst to produce a hydrogenation effluent comprising isopropanol. | 02-07-2013 |
| 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 |
| 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 |
| 20130046113 | 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. | 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 |
| 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 |
| 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 |
| 20130199084 | Ethanol Compositions - In one embodiment, the present invention is to an ethanol composition comprising at least 92 wt. % ethanol and from 95 wppm to 1,000 wppm isopropanol. | 08-08-2013 |
| 20130224102 | PROCESS FOR UTILIZING A WATER STREAM IN A HYDROLYSIS REACTION TO FORM ETHANOL - 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. | 08-29-2013 |
| 20130245331 | Separation Process Having An Alcohol Sidestream - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid. The crude ethanol product is fed to a distillation column to yield an ethanol sidestream. | 09-19-2013 |
| 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 |
| 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 |
| 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 |
| 20140303407 | Extractive Distillation of Crude Alcohol Product - Recovery of ethanol from a crude ethanol product obtained from the hydrogenation of acetic acid using an extractive distillation column. The column yields a residue that comprises ethanol, acetic acid, and the extractive agent. The extractive agent may be water and may be separated from the residue and returned to the extractive distillation column. | 10-09-2014 |
