Class / Patent application number | Description | Number of patent applications / Date published |
585258000 | Hydrocarbon is contaminant in desired hydrocarbon | 44 |
20100016645 | Process for hydrogenation of benzene - This invention relates to a process for hydrogenation of benzene contained in a catalytic reformate, in which:
| 01-21-2010 |
20100063334 | PROCESS FOR ULTRA LOW BENZENE REFORMATE USING CATALYTIC DISTILLATION - A process for reducing the concentration of benzene in a hydrocarbon stream, the process including: fractionating a reformate to form a benzene concentrate fraction comprising benzene and other C | 03-11-2010 |
20100145118 | Process for Reducing Benzene Concentration in Reformate - A process and system for separating and saturating benzene from a reforming reactor effluent begins with introducing the reforming reactor effluent to a combined stabilizer and naphtha splitter. An overhead stream comprising light ends, a sidecut stream comprising C4-C5 compounds, a bottoms stream comprising C7+ compounds and a heart cut stream comprising C4, C5, C6 compounds including benzene are all removed from the combined stabilizer and naphtha splitter. The heart cut stream is introduced to a side stripper to produce a side stripper overhead stream reduced in benzene and a side stripper bottoms stream enriched in benzene. At least a portion of the side stripper bottoms stream enriched in benzene is introduced into a hydrogenation zone to saturate benzene and generate a hydrogenation zone effluent reduced in benzene. The side stripper overhead stream may be recycled to the combined stabilizer and naphtha splitter. | 06-10-2010 |
20110077437 | PROCESS FOR SULFUR REMOVAL FROM REFINERY OFF GAS - Organic sulfur compounds contained in refinery off gas streams having either high ort low concentrations of olefins are converted to hydrogen sulfides which can be then be removed using conventional amine treating systems. The process uses a catalytic reactor with or without a hydrotreater depending on the olefin concentration of the off gas stream. The catalytic reactor operates in a hydrogenation mode or an oxidation mode to convert a majority of organic sulfur compounds into hydrogen sulfides. | 03-31-2011 |
20140107382 | METHODS AND APPARATUSES FOR SEPARATING A LINEAR HEXANE STREAM FROM A HYDROCARBON FEED - Methods of and apparatuses for separating a linear hexane stream from a hydrocarbon feed that includes unbranched C | 04-17-2014 |
20150328610 | MULTI-BED REACTOR WITH MIXING DEVICE - A mixing device mounted between two catalyst beds in a multi-bed catalytic reactor with a cylindrical shape. The mixing device has a circular outer rim which corresponds to the inner wall of the reactor, and includes a collecting section for collecting fluid from an up-stream catalytic bed, a mixing section for mixing the collected fluid, and a discharging section for discharging the mixed fluid to a down-stream catalytic bed. The collecting section, the mixing section and the discharging section are disposed outside the center of the circular cross-section of the reactor. | 11-19-2015 |
20150353845 | NOBLE METAL HYDROGENATION CATALYSTS WITH LOW CRACKING ACTIVITY - Methods are provided for modifying hydrogenation catalysts having silica supports (or other non-alumina supports) with additional alumina, and using such catalysts to achieve unexpectedly superior hydrogenation of feedstocks. The modified hydrogenation catalysts can have a relatively low cracking activity while providing an increased activity for hydrogenation. | 12-10-2015 |
20150361357 | DISTILLATE TWO-PHASE HYDROGENATION REACTOR AND HYDROGENATION METHOD - A hydrogenation method and distillate two-phase hydrogenation reactor in which the size of an upper space of the reactor is greater than that of a lower catalyst bed part. The reactor comprises 2 to 4 catalyst beds. An inner component for gas replenishment and for stripping a liquid-phase stream containing impurities is arranged between at least one adjacent catalyst bed and comprises a separator plate and exhaust pipes. The separator plate is provided with multiple downcomer through holes. The separator plate is connected with a plurality of exhaust pipes. The exhaust pipes are vertically arranged above the separator plate. The top parts of the exhaust pipes are in contact with the lower part of the upper catalyst bed. | 12-17-2015 |
20150361359 | Hydrocarbon Upgrading - Aspects of the invention provide a process for upgrading a hydrocarbon feed. The process includes providing a hydrocarbon feed and a utility fluid. Then selectively extracting from the feed at least a portion of particulates to produce a raffinate and an extract. Third hydroprocessing at least a portion of the raffinate. | 12-17-2015 |
20160102256 | METHODS AND APPARATUSES FOR SELECTIVE HYDROGENATION OF OLEFINS - Methods and apparatuses for selective hydrogenation of olefins are provided. The method for selective hydrogenation of olefins comprises reacting a hydrocarbonaceous feedstock comprising olefins and aromatic compounds with hydrogen in a reaction zone. The reaction contains a catalyst producing a reaction zone product stream comprising aromatic compounds. The reaction zone product stream is passed to a flash vessel, recovering a first product stream and a second product stream from the flash vessel. The first product stream is passed to a liquid jet eductor, whereas the second product stream comprising aromatic compounds having a reduced concentration of olefins is subsequently recovered. | 04-14-2016 |
20160115398 | HYDROTREATING CATALYST, PROCESS FOR PREPARING THE SAME AND USE THEREOF - The present invention relates to a hydrotreating catalyst and more particularly to a catalyst comprising of Group VIB and Group VIII metals impregnated on non-refractory oxide as a catalyst support and process for preparing and its use thereof. | 04-28-2016 |
585259000 | Hydrogenation of diolefin or triple bond | 33 |
20090221861 | Hydrogenation Process Using Catalyst Comprising Ordered Intermetallic Compound - The present invention relates to a process for the hydrogenation, in particular the selective hydrogenation of unsaturated hydrocarbon compounds using a hydrogenation catalyst comprising an ordered intermetallic compound. The ordered intermetallic compound comprises at least one metal of type A capable of activating hydrogen, and at least one metal of type B not capable of activating hydrogen, and the structure of the ordered intermetallic compound is such that at least one king of type A metals is mainly surrounded by atoms of the metal of type B. According to another aspect, the present invention is concerned with a catalyst comprising a support and the above ordered intermetallic compound supported on the support. According to still another aspect, the invention pertains to the use of a binary Pd—Ga ordered intermetallic compound as a catalyst. The hydrogenation process and catalysts of the present invention achieve a selectivity to the target compounds, e.g. in the selective hydrogenation of acetylene to ethylene, which is superior to the prior art. | 09-03-2009 |
20090270665 | DEVICE TO SEPARATE OLEFINS FROM PARAFFINS AND TO PURIFY OLEFINS AND USE THEREOF - The present invention discloses a device, which uses membranes, capable of separating olefins from paraffins. The device ( | 10-29-2009 |
20090326288 | Method for Selective Hydrogenation of Acetylene to Ethylene - The present invention relates to a method for selective hydrogenation of acetylene to ethylene, comprising the steps of: i) introducing a feed comprising acetylene and hydrogen into a reactor containing a supported catalyst, wherein the reactor is a fixed bed reactor containing the supported catalyst additionally diluted with a solid diluent, or the reactor being a wash coated reactor wherein the supported catalyst is coated on reactor walls; and ii) hydrogenating of acetylene to ethylene in the presence of the supported catalyst. | 12-31-2009 |
20100016646 | PROCESS FOR HYDROGENATING BUTADIYNE - In the process for hydrogenating butadiyne over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as a support, the hydrogenation is performed at a pressure in the range from 1 to 40 bar and a temperature in the range from 0 to 100° C., and from 0.05 to 5% by weight, based on the overall catalyst, of platinum group metal is present on the support. | 01-21-2010 |
20120071700 | CATALYSTS FOR HYDROGENATION OF UNSATURATED HYDROCARBONS AND PREPARATIONS AND USES THEREOF - Disclosed are catalysts for hydrogenation of unsaturated hydrocarbons comprising at least one carrier, at least one active metallic component supported on the at least one carrier, and at least one silane group; and wherein the at least one active metallic component is chosen from palladium, platinum, nickel, copper, and ruthenium; the at least one silane group is grafted to the catalyst by silylation and is present in an amount ranging from 0.05% to 25% by weight relative to the total weight of the catalyst. Also disclosed are processes for the preparation of the catalysts and processes using the catalysts for hydrogenation of unsaturated hydrocarbons. | 03-22-2012 |
20120108866 | PROCESS FOR THE SELECTIVE HYDROGENATION AND HYDRODESULFERIZATION OF A PYROLYSIS GASOLINE FEEDSTOCK - Disclosed is a process for the selective hydrogenation of diolefins and sulfur compounds that are contained in a pyrolysis gasoline feedstream. The process includes utilizing a single hydrotreating reaction stage by introducing the pyrolysis gasoline feedstock that includes a diolefin concentration and an organic sulfur concentration into a reactor that is loaded with a high activity hydrotreating catalyst and which is operated under selective hydrogenation conditions. A reactor effluent having a reduced diolefin concentration and a reduced organic sulfur concentration is yielded from the reactor and is separated into a portion that is recycled as a reactor feed. The remaining portion of the reactor effluent is passed downstream for further processing or handling. | 05-03-2012 |
20130204056 | Selective Hydrogenation of Alkynyl-Containing Compounds - A selective hydrogenation method is particularly effective in selectively hydrogenating alkynyl compounds, such as acetylene or methyl acetylene, over alkenyl compounds, such as ethylene. The method produces a relatively high quantity of heat during the selective hydrogenation reaction. This production of heat is, however, quite beneficial in that enough heat is produced such that a substantial portion of the produced heat can be recovered for heat efficiency purposes. | 08-08-2013 |
20130310615 | Stabilization And Hydrogenation Methods For Microbial-Derived Olefins - Processes and systems for stabilization and subsequent hydrogenation of an immiscible olefin are described. In certain embodiments, the hydrogenation is conducted in a fixed bed reactor in presence of a hydrogenation catalyst. | 11-21-2013 |
20140100399 | BUTADIENE EXTRACTION PROCESS - A process for recovering butadiene from a C | 04-10-2014 |
20140114102 | SELECTIVE HYDROGENATION METHOD FOR PHENYLACETYLENE IN THE PRESENCE OF CRACKING C8 FRACTION - Provided is a method for selective hydrogenation phenylacetylene (PA) in cracked C8 fraction, which adopts a hydrogenation reactor featuring an upper catalyst bed and a lower catalyst bed, and operated by the following steps: feedstock cracked C8 fraction is supplied through the lower bed while hydrogen is supplied through the gas distributor located below the lower bed and increases the bed temperature to 0-20° C., and gas distributor located below the upper bed increases the upper bed temperature to 0-15° C., the reaction effluent from the upper bed is subsequently passed through and recovered from the packing layer. The method is characterized with low loss rate of styrene after hydrogenation and high hydrogenation rate of phenylacetylene. | 04-24-2014 |
20140275674 | METHODS AND SYSTEMS FOR SEPARATING OLEFINS - Systems and methods for separating one or more olefins are provided. In one or more embodiments, the method for separating one or more olefins can include separating at least a portion of one or more C | 09-18-2014 |
20150119615 | PYROLYSIS GASOLINE TREATMENT PROCESS - A process for treating pyrolysis gasoline that includes providing a first stage di-olefin reactor that includes a first bed and a second bed and introducing a pyrolysis gasoline stream to the first bed of the first stage di-olefin reactor. The process also preferably includes providing interstage cooling to the pyrolysis gasoline stream between the first and second beds of the first stage di-olefin reactor and routing the cooled pyrolysis gasoline stream through the second bed of the first stage di-olefin reactor. Finally, embodiments of the process also preferably involve routing at least a portion of an effluent stream from the second bed of the first stage di-olefin reactor to a location upstream of the first bed of the first stage di-olefin reactor, such that the effluent stream is configured to be combined with the pyrolysis gasoline stream. | 04-30-2015 |
20150329439 | ETHYLENE-TO-LIQUIDS SYSTEMS AND METHODS - Integrated systems are provided for the production of higher hydrocarbon compositions, for example liquid hydrocarbon compositions, from methane using an oxidative coupling of methane system to convert methane to ethylene, followed by conversion of ethylene to selectable higher hydrocarbon products. Integrated systems and processes are provided that process methane through to these higher hydrocarbon products. | 11-19-2015 |
20150353448 | PROCESS FOR THE SELECTIVE HYDROGENATION OF ACETYLENE TO ETHYLENE - A process for a liquid phase selective hydrogenation of acetylene to ethylene in a reaction zone. In order to decrease the selectivity to C | 12-10-2015 |
20150353449 | PROCESS FOR THE SELECTIVE HYDROGENATION OF ACETYLENE TO ETHYLENE - A process for a liquid phase selective hydrogenation of acetylene to ethylene in a reaction zone in which acetylene is contacted with hydrogen under hydrogenation conditions and a molar ratio of hydrogen to acetylene in the reaction zone is at least 5, preferably at least 9. A molar ratio of hydrogen to carbon monoxide is preferably approximately 10. The acetylene is preferably absorbed in a solvent. | 12-10-2015 |
20220135498 | METHODS FOR OPERATING ACETYLENE HYDROGENATION UNITS IN OLEFIN PRODUCTION PROCESSES - A method for selectively hydrogenating acetylene in a cracked gas from a steam cracking unit for producing olefins may include separating a hydrogenation feed from the cracked gas. The hydrogenation feed may include acetylene, hydrogen, carbon monoxide, and at least one product. The method may further include contacting the hydrogenation feed with an acetylene hydrogenation catalyst, the contacting causing hydrogenation of at least a portion of the acetylene of the hydrogenation feed to produce a hydrogenation effluent. In response to a change in a composition of a feedstock to the steam cracking unit that results in a change in a hydrogen concentration in the hydrogenation feed, the method may further include determining the hydrogen concentration in the hydrogenation feed and increasing or decreasing a temperature of the hydrogenation feed based on the determined hydrogen concentration of the hydrogenation feed. | 05-05-2022 |
585260000 | Using catalyst or support of defined structure, surface area, or pore size | 12 |
20080300436 | Selective hydrogenation catalyst and methods of making and using same - A method for producing a selective hydrogenation catalyst for hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon comprising contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. A selective hydrogenation catalyst for hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon formed by the method comprising contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. A method of selectively hydrogenating a highly unsaturated hydrocarbon to an unsaturated hydrocarbon comprising contacting the highly unsaturated hydrocarbon with a selective hydrogenation catalyst composition produced by contacting an inorganic catalyst support with a chlorine-containing compound to form a chlorided catalyst support and adding palladium to the chlorided catalyst support to form a supported-palladium composition. | 12-04-2008 |
20100010278 | PROCESS FOR SELECTIVE HYDROGENATION ON A GOLD-CONTAINING CATALYST - The invention relates to a process for selective hydrogenation by bringing a so-called C2 fraction feedstock into contact with a fixed catalyst bed, whereby said catalyst comprises a substrate and a metal phase that consists of either gold or palladium and gold with a molar ratio of gold to palladium of greater than 5, whereby the contact is carried out in the presence of a solvent that comprises at least one aromatic hydrocarbon, whereby the products that are obtained at the end of the selective hydrogenation can be separated from the solvent by distillation. | 01-14-2010 |
20100125158 | Methods for Selective Hydrogenation Performance Using a Layered Sphere Catalyst With New Formulations - A process for selective hydrogenation of hydrocarbons is presented. The process uses a catalyst to selectively hydrogenate acetylenes and diolefins to increase the monoolefins in a product stream. The catalyst in the process includes a layered structure with an inert inner core and an outer layer bonded to the inner core, where the outer layer is a metal oxide and has at least two metals deposited on the outer layer. | 05-20-2010 |
20100217053 | Purification of an Aromatic Fraction Containing Acetylenes by Selective Hydrogenation of the Acetylenes - A process for purification of an aromatic fraction containing acetylenes as impurities by selective hydrogenation of the acetylenes by means of a catalyst containing nickel or palladium at a temperature of not more than about 60° C. is described. | 08-26-2010 |
20110060174 | CATALYST, A PROCESS FOR SELECTIVE HYDROGENATION OF ACETYLENE TO ETHYLENE AND A METHOD FOR THE MANUFACTURE OF THE CATALYST - Provided is a catalyst including a mixture of metal A selected from Fe, Co and Ni, and metal B selected from Zn and Ga, and a support material, where the two metals are present in an intermetallic composition; A method for the manufacture of the catalyst; and the use of the catalyst for the selective hydrogenation of acetylene to ethylene in a gas mixture including acetylenic impurities and hydrogen, and one or more of ethylene and carbon monoxide. The catalyst has a high selectivity and is based an easily available metal compounds. | 03-10-2011 |
20120323058 | PROCESS FOR USING LAYERED SPHERE CATALYST - One exemplary embodiment can be a process for selective hydrogenation of acetylenes and diolefins to olefins. The process can include contacting a feedstream having olefins, acetylenes and diolefins with a layered catalyst at reaction conditions. Thus, the process may include creating an output stream with a reduced amount of acetylenes and diolefins. Generally, the layered catalyst has an inner core including an inert material, an outer layer, including a metal oxide, bonded to the inner core, and a metal, which is an International Union of Pure and Applied Chemistry Group 8-10 metal, deposited on the outer layer. Usually, the layered catalyst has an accessibility index of about 3—about 500, a void space index about 0—about 1, or both an accessibility index of about 3—about 500 and a void space index of about 0—about 1. | 12-20-2012 |
20140206916 | Selective Hydrogenation Catalyst and Methods of Making and Using Same - A composition comprising an extruded inorganic support comprising an oxide of a metal or metalloid, and at least one catalytically active metal, wherein the extruded inorganic support has pores, a total pore volume, and a pore size distribution, wherein the pore size distribution displays at least two peaks of pore diameters, each peak having a maximum, wherein a first peak has a first maximum of pore diameters of equal to or greater than about 120 nm and a second peak has a second maximum of pore diameters of less than about 120 nm, and wherein greater than or equal to about 5% of a total pore volume of the extruded inorganic support is contained within the first peak of pore diameters. | 07-24-2014 |
20150299585 | Method for Selective Hydrogenation of Unsaturated Compound - The present invention relates to a method for the selective hydrogenation of an unsaturated compound, particularly a method in an unsaturated compound or a mixture containing unsaturated compounds for increase of the light sulphides weight, hydrogenation of a polyunsaturated compound and isomerization of a monounsaturated compound. The method uses a supported catalyst. The supported catalyst contains at least one Group VIB non-noble metal oxide and at least one Group VIII non-noble metal oxide deposited on a carrier; and the catalyst has an optimized acid distribution on the surface of the catalyst, and more preferably has an optimized Group VIII/VIB metal ratio and a Group VIII non-noble metal density per unit of catalyst surface area. | 10-22-2015 |
20160107146 | Selective Hydrogenation Catalyst and Methods of Making and Using Same - A composition comprising a support formed from a high surface area alumina and having a low angularity particle shape; and at least one catalytically active metal, wherein the support has pores, a total pore volume, and a pore size distribution; wherein the pore size distribution displays at least two peaks of pore diameters, each peak having a maximum; wherein a first peak has a first maximum of pore diameters of equal to or greater than about 200 nm and a second peak has a second maximum of pore diameters of less than about 200 nm; and wherein greater than or equal to about 5% of a total pore volume of the support is contained within the first peak of pore diameters. | 04-21-2016 |
20160168057 | METHODS FOR REMOVING IMPURITIES FROM HYDROCARBONS | 06-16-2016 |
20160176783 | SELECTIVE HYDROGENATION METHOD | 06-23-2016 |
20180023010 | METHOD FOR SOFTENING SULFIDE-TYPE COMPOUNDS OF AN OLEFINIC GASOLINE | 01-25-2018 |
585261000 | Using catalyst and additional nonmetal material | 1 |
20120283495 | METHOD AND A DEVICE FOR GENERATING A CARBURIZING GAS MIXTURE - A method to generate a ternary carburizing gas mixture, using a reaction of selective hydrogenation of acetylene in a stream of hydrocarbons to the form of ethylene, comprising the following steps: heating of the inside of the reactor with an inert gas to an operating temperature for a period of 20 minutes at a temperature of 300° K, passing a mixture of hydrogen and acetylene by the regiospecific catalyst, and moving out the reaction products on the outside after passing the mixture through the regiospecific catalyst, but generation is effected in a continuous mode in the operating temperature range of the regiospecific catalyst between 293° K and 398° K, preferably at a temperature of 350° K. | 11-08-2012 |
585262000 | Using S or Group I or II transition metal-containing catalyst | 4 |
20100240936 | CATALYSTS AND PROCESSES FOR SELECTIVE HYDROGENATION OF ACETYLENE AND DIENES IN LIGHT OLEFIN FEEDSTREAMS - A catalyst and a method for selective hydrogenation of acetylene and dienes in light olefin feedstreams are provided. The catalyst retains higher activity and selectivity after regeneration than conventional selective hydrogenation catalysts. The catalyst contains a first component and a second component supported on an inorganic support. The inorganic support contains at least one salt or oxide of zirconium, a lanthanide, or an alkaline earth. | 09-23-2010 |
20110251447 | Process for Hydrogenating Highly Unsaturated Hydrocarbons and Catalyst Therefor - A process for hydrogenating highly unsaturated hydrocarbons to less unsaturated hydrocarbons wherein production of saturated hydrocarbons is minimized. The process utilizes catalyst including Ce | 10-13-2011 |
20130184507 | Hydrogenation Process Using Catalyst Comprising Ordered Intermetallic Compound - The present invention relates to a process for the hydrogenation, in particular the selective hydrogenation of unsaturated hydrocarbon compounds using a hydrogenation catalyst comprising an ordered intermetallic compound. The ordered intermetallic compound comprises at least one metal of type A capable of activating hydrogen, and at least one metal of type B not capable of activating hydrogen, and the structure of the ordered intermetallic compound is such that at least one king of type A metals is mainly surrounded by atoms of the metal of type B. According to another aspect, the present invention is concerned with a catalyst comprising a support and the above ordered intermetallic compound supported on the support. According to still another aspect, the invention pertains to the use of a binary Pd—Ga ordered intermetallic compound as a catalyst. The hydrogenation process and catalysts of the present invention achieve a selectivity to the target compounds, e.g. in the selective hydrogenation of acetylene to ethylene, which is superior to the prior art. | 07-18-2013 |
20130211162 | METHOD AND SYSTEM FOR PURIFYING AN ETHYLENE-CONTAINING GAS STREAM - A two catalyst system is described having separate catalyst beds for the selective conversion of acetylene to ethylene which reduces the concentration of acetylene, dienes, O2, and NOx is disclosed. An ethylene containing gas stream, such as an off-gas stream from a refinery catalytic cracking unit used in the production of fuels and gas oils, is treated by first contacting the gas stream with a silver catalyst supported on a metal oxide and subsequently contacting the gas stream with a ruthenium catalyst supported on metal oxide. The two catalysts are contained within contiguous continuous reactors or reactor compartments. | 08-15-2013 |