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Chemistry of hydrocarbon compounds December patent applications/inventions, industry category 12/09Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application. 12/31/2009 > patent applications in patent subcategories.
20090326286 - Process of producing liquid fuel from cellulosic biomass: A liquid fuel production process from cellulosic biomass comprises the following steps: (1) providing a mixture of cellulose and water; (2) subjecting the obtained mixture to hydrolysis and catalytic hydrogenation under the presence of acid to obtain mono-sugar alcohol and optional solid material lignin, or subjecting the obtained mixture to... Agent: Hamre, Schumann, Mueller & Larson, P.C.
20090326285 - Use of supported mixed metal sulfides for hydrotreating biorenewable feeds: Methods for hydroconverting a biorenewable feed with an unsupported sulfided metal catalyst formed by reacting a metal containing compound with a sulfur containing compound to form an insoluble particulate sulfided metal catalyst.... Agent: Honeywell/uop Patent Services
20090326287 - Method for producing o-xylene: t
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... Agent: Sabic Americas, Inc.
20090326289 - Liquid phase hydroprocessing with temperature management: A method of hydroprocessing hydrocarbons is provided using a substantially liquid-phase reactor having first and second catalyst beds with a heat transfer section positioned therebetween. The first and second catalyst beds and the heat transfer section are combined within the same reactor vessel. Each catalyst bed having an inlet temperature... Agent: Honeywell/uop Patent Services
20090326290 - Method of converting feedstocks from renewable sources to good-quality diesel fuel bases using a zeolite catalyst without intermediate gas-liquid separation: The invention relates to a method of treating feedstocks from renewable sources without intermediate gas-liquid separation in order to produce diesel fuel bases of excellent quality. The feedstocks used can be raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures... Agent: Millen, White, Zelano & Branigan, P.C.
20090326291 - Selective hydrogenation of unsaturated aliphatic hydrocarbons in predominantly aromatic streams: The selective saturation of unsaturated aliphatic hydrocarbons (e.g., diolefins) in a hydrogenation feed stream comprising an aromatic compound (e.g., benzene) and one or more nitrogen compounds renders is beneficial when the stream or a portion thereof is subsequently treated (e.g., with a zeolitic adsorbent) to remove nitrogen. In particular, the... Agent: Honeywell/uop Patent Services
20090326292 - Process for converting gaseous alkanes to liquid hydrocarbons: A process for converting gaseous alkanes to liquid hydrocarbons wherein a gaseous feed containing alkanes is reacted with a dry bromine vapor to form alkyl bromides and hydrobromic acid vapor. The mixture of alkyl bromides and hydrobromic acid are then reacted over a synthetic crystalline alumino-silicate catalyst, such as a... Agent: Marathon Oil Company C/o Law Office Of Jack E. Ebel
20090326293 - Process for producing light olefins from a feed containing triglycerides: The process combines hydroconversion and catalytic cracking starting from a feed containing triglycerides, at concentrations of fatty acids above 85%, which maximizes the yields of light olefins, chiefly ethylene and propylene, while reducing the yield of gasoline, with conversion greater than 80 wt. %.... Agent: Sughrue Mion, PLLC
20090326294 - reactor process for smaller batch transfers of catalyst: A moving bed of catalyst loses activity as it moves through the reactor. Creating multiple passes for the process fluid moving across a catalyst bed, increases the utilization of the catalyst and creates a step-wise counter current flow of catalyst and process fluid, where the catalyst flows in the axial... Agent: Honeywell/uop Patent Services
20090326295 - Metathesis unit pretreatment process with formation of octene: Disclosed is a process for integrating a butene dimerization process with a metathesis process to remove isobutene from the feed stream to the metathesis reactor. The isobutene is preferentially dimerized in the dimerization process to leave n-butenes for metathesis with ethylene. An upstream selective hydrogenation process also isomerizes 1-butenes to... Agent: Honeywell/uop Patent Services
20090326296 - Manufacture of low viscosity poly alpha-olefins: The present invention relates to poly alpha-olefins (PAO's) which exhibit superior Noack volatility at low pour points. The poly alpha-olefin is prepared from an olefin feed comprised of a blend of octene, decene, and dodecene, the feed comprising at least 10 weight % octene and at least 30 weight %... Agent: Exxonmobil Chemical Company
20090326297 - Production method of alpha-olefin low polymer: The object of the present invention is to provide a production method of an α-olefin low polymer, wherein a low polymer of an α-olefin is obtained in high yield. The present invention relates to that when an inert gas is allowed to exist in a gas phase part of a... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.
20090326298 - Integration of oto process with direct dme synthesis: Processes and systems for utilizing products from DME synthesis in converting oxygenates to olefins are provided that include removing a DME-reactor effluent from a DME reactor, wherein the DME effluent includes DME, water, and methanol; separating carbon dioxide gas from the DME reactor effluent in a liquid gas separator to... Agent: Honeywell/uop Patent Services
20090326300 - Process for cracking tert-alkyl ethers that use a mesostructured hybrid organic-inorganic material: A process for cracking tert-alkyl ether(s) selected from among tert-amyl methyl ether (TAME) and ethyl tert-amyl ether (ETAE) for the production of tertiary olefins comprising bringing said tert-alkyl ether(s) into contact with at least one catalyst that is formed by at least one mesostructured hybrid organic-inorganic material that consists of... Agent: Millen, White, Zelano & Branigan, P.C.
20090326299 - Use of a catalyst based on zeolites in the conversion of oxygenates to lower olefins, and associated method: The invention relates to the use of a catalyst based on crystalline aluminosilicates for the conversion of oxygenates to lower olefins, the catalyst having an SiO2/Al2O3 molar ratio of 20 to 200 and being modified with 0.1% to 10% by weight of readily oxidant metal (calculated as the corresponding metal... Agent: Scott R. Cox Lynch, Cox, Gilman & Mahan, P.s.c.
20090326301 - Two stage contact cooler design for hot water generation: Systems and methods are provided herein for cooling an olefin cracking reactor effluent stream. One provided method includes reacting a hydrocarbon feedstock including C4+ olefins in an olefin cracking reactor to produce an olefin cracking reactor effluent stream, providing the olefin cracking reactor effluent stream to an inlet of a... Agent: Honeywell/uop Patent Services
20090326302 - Process for using alumina catalyst in slurry hydrocracking: A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce lighter hydrocarbons. The alumina in the catalyst is active in suppressing... Agent: Honeywell/uop Patent Services
20090326304 - Process for using catalyst with nanometer crystallites in slurry hydrocracking: A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce lighter hydrocarbons. The iron sulfide crystallites have diameters in the nanometer... Agent: Honeywell/uop Patent Services
20090326303 - Process for using iron oxide and alumina catalyst for slurry hydrocracking: A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce lighter hydrocarbons. The iron oxide and alumina catalyst does not require... Agent: Honeywell/uop Patent Services
20090326305 - Guard bed for removing contaminants from feedstock to a normal paraffin extraction unit: Processes and systems for removing contaminants from a paraffin containing feedstock are provided that include: providing a paraffin containing feedstock, passing the paraffin containing feedstock to an inlet of a guard bed that includes an adsorbent material, and contacting the paraffin containing feedstock with the adsorbent material in the guard... Agent: Honeywell/uop Patent Services
20090326306 - Process for separating para-xylene from a mixture of c8 and c9 aromatic hydrocarbons: The process includes at least two adsorptive separation zones to separate para-xylene from a feed stream comprising C8 aromatic hydrocarbons and at least one C9 aromatic hydrocarbon component. An adsorbent comprising X or Y zeolite and a heavy desorbent are used in the first adsorptive separation zone to produce an... Agent: Honeywell/uop Patent Services
20090326307 - Separation process for olefin production: Improved processes for the separation of olefins from paraffins, such as propylene from propane are provided. Two product splitters are used in parallel to separate propylene from propane. One of the product splitters operates at a lower pressure, while the second product splitter operates at a higher pressure. The use... Agent: Mccarter & English, LLP Hartford Cityplace I
20090326308 - Binderless adsorbents comprising nano-size zeolite x and their use in the adsorptive separation of para-xylene: Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise nano-size zeolite X having an average crystallite size of less than about 500 nanometers. The adsorbents... Agent: Honeywell/uop Patent Services
20090326309 - Binderless adsprbents and their use in the adsorptive separation of para-xylene: Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable binderless adsorbents (e.g., formulated with the substantial absence of an amorphous material that normally reduces selective pore volume),... Agent: Honeywell/uop Patent Services
20090326310 - Adsorbent and process for the separation of meta-xylene from aromatic hydrocarbons: Adsorbents and methods for the adsorptive separation of meta-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise sodium zeolite Y having an average crystallite size from about 50 to about 700 nanometers. The... Agent: Honeywell/uop Patent Services
20090326311 - Adsorbents with improved mass transfer properties and their use in the adsorptive separation of para-xylene: Adsorbents and methods for the adsorptive separation of para-xylene from a mixture containing at least one other C8 aromatic hydrocarbon (e.g., a mixture of ortho-xylene, meta-xylene, para-xylene, and ethylbenzene) are described. Suitable adsorbents comprise zeolite X having an average crystallite size of less than 1.8 microns. The adsorbents provide improved... Agent: Honeywell/uop Patent Services12/24/2009 > patent applications in patent subcategories.
20090318737 - Production of paraffinic fuel from renewable feedstocks: A process has been developed for producing fuel from renewable feedstocks such as plant and animal oils and greases. The process involves treating a first portion of a renewable feedstock by hydrogenating and deoxygenating in a first reaction zone and a second portion of a renewable feedstock by hydrogenating and... Agent: Honeywell/uop Patent Services
20090318738 - Selective hydrogenation catalyst and process for its preparation: p
20090318739 - Nickel catalyst for selective hydrogenation: The present invention discloses a Ni-based catalyst useful in selective hydrogenation, comprising the following components supported on an alumina support: (a) 5.0 to 40.0 wt. % of metallic nickel or oxide(s) thereof; (b) 0.01 to 20.0 wt. % of at least one of molybdenum and tungsten, or oxide(s) thereof; (c)... Agent: Scully, Scott, Murphy & Presser, P.C.
20090318740 - Method of converting feedstocks from renewable sources to good-quality diesel fuel bases using a zeolite type catalyst: The invention relates to a method of treating feedstocks from renewable sources in order to produce diesel fuel bases of excellent quality. The feedstocks used can be, for example, raw vegetable oils or such oils that have been previously subjected to a prerefining stage, animal fats, or mixtures of such... Agent: Millen, White, Zelano & Branigan, P.C.
20090318741 - Method of improving a dehydrogenation process: The invention relates to a method of improving a dehydrogenation process comprising: removing a volume of a first dehydrogenation catalyst from a radial dehydrogenation reactor; loading the reactor with a volume of a second dehydrogenation catalyst that has a lower decline rate than the first dehydrogenation catalyst; and passing a... Agent: Shell Oil Company
20090318742 - Process for combining the catalytic conversion of organic oxygenates and the catalytic conversion of hydrocarbons: A process for combining the catalytic conversion of organic oxygenates and the catalytic conversion of hydrocarbons: an organic oxygenate feedstock is contacted with a Y-zeolite containing catalyst to produce a reaction stream, and a coked catalyst and a product stream are obtained after separating the reaction stream; a hydrocarbon feedstock... Agent: Scully, Scott, Murphy & Presser, P.C.
20090318743 - Combined carbon dioxide and oxygen process for ethylbenzene dehydrogenation to styrene: Processes for using a combination of carbon dioxide and oxygen in the dehydrogenation of hydrocarbons are provided. A hydrocarbon feedstock, carbon dioxide and oxygen are fed to an oxidative dehydrogenation reactor system containing one or more catalysts that promote dehydrogenation of the hydrocarbon feedstock to produce a dehydrogenated hydrocarbon product.... Agent: Mccarter & English, LLP Hartford Cityplace I
20090318744 - Separation process: A process is disclosed for the separation of solids from gases in a mixture which is most particularly applicable to an FCC apparatus. The mixture of solids and gases are passed through a conduit and exit through a swirl arm that imparts a swirl motion having a first annular direction... Agent: Honeywell/uop Patent Services12/17/2009 > patent applications in patent subcategories.
20090312587 - Process for the preparation of zeacarotenes: The present invention relates to process for the preparation of zeacarotenes and to intermediates in the process for the preparation of zeacarotenes.... Agent: Nixon & Vanderhye, PC
20090312588 - Process for hydrogenating unsaturated hydrocarbons in the presence of catalysts containing copper and zinc: Unsaturated hydrocarbons are hydrogenated over catalysts which comprise copper and zinc and whose active composition, in unreduced form, consists essentially of from 10 to 95% by weight of copper oxide, calculated as copper(II) oxide (CuO), from 5 to 90% by weight of zinc oxide (ZnO), optionally from 0.1 to 50%... Agent: Connolly Bove Lodge & Hutz, LLP
20090312590 - Process for the production of styrene monomer by improving energy efficiency and injecting a recycle gas into the eb vaporizer: This invention relates to a process for the production of styrene monomer by the dehydrogenation or oxidative dehydrogenation of ethylbenzene in the presence of recycle gas and more particularly to a method of reducing the boiling point of liquid ethylbenzene feed in the production of styrene monomer. The process comprises... Agent: Mccarter & English, LLP Hartford Cityplace I
20090312589 - Styrene monomer process based on oxidative dehydrogenation of ethylbenzene using co2 as a soft oxidant: Processes are provided for the production of styrene monomer by oxidative dehydrogenation of EB using CO2 as a soft oxidant. Carbon dioxide is used as the reaction diluent in one or more dehydrogenation reactors and to supply the heat required for the endothermic reaction of EB to styrene monomer. In... Agent: Mccarter & English, LLP Hartford Cityplace I
20090312591 - Method for producing propene from propane: o
20090312592 - Swing reactor and process for oxychlorination: A reactor with swing feeds is provided for oxychlorination. This reactor comprises multiple inlets with controls capable of introducing feed streams sequentially to the reactor. In one configuration, a feed stream comprises a paraffin hydrocarbon, and a second feed stream comprises oxygen and hydrogen chloride. By segregating these feeds, combustion... Agent: Young Basile12/10/2009 > patent applications in patent subcategories.
20090306440 - Device for absorption of gas or vapour in a liquid and method for reintroducing vapour or gas in the liquid from which the gas or vapour orginates: Device for absorption of at least one component chosen among gas and vapour in a liquid based on an ejector principle, comprising a mixing zone in the form of a substantially straight tube (5) immediately downstream of the ejector (1). The device comprises an ejector (1) with central liquid passage... Agent: Dennison, Schultz & Macdonald
20090306441 - Method for treatment of oil and/or gas field waste and by product materials: The present invention relates to a process for preparing 2,3-dimethylbutane which comprises contacting in a reaction zone isobutane with a supported catalyst comprising a tungsten hydride and a support comprising an aluminium oxide, so as to form a reaction mixture comprising 2,3-dimethylbutane. The contacting essentially leads to performing a metathesis... Agent: Nixon & Vanderhye, PC
20090306442 - Oligomerisation catalyst with pendant donor groups: This invention relates to a process for producing an oligomeric product by the oligomerisation of at least one olefinic compound in the form of an olefin or a compound including a carbon to carbon double bond, by contacting the at least one olefinic compound with an oligomerisation catalyst which includes... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP
20090306443 - Production of saturated c2 to c5 hydrocarbons: Catalytic methods for the production of saturated hydrocarbons with 2 to 5 carbon atoms per molecule by conversion of small hydrocarbon halides and/or hydrogenation of carbonaceous material are disclosed that result in high yield of saturated C2 to C5 hydrocarbons at reduced corrosion of the reactors and in good lifetime... Agent: Marshall, Gerstein & Borun LLP
20090306444 - Oligomerizing and alkylating with an ionic liquid at a molar ratio of olefin to isoparaffin of at least 0.8: We provide a process for making a fuel or lubricant component, comprising: performing alkylation and oligomerization by contacting a stream comprising one or more olefins and one or more isoparaffins, wherein a molar ratio of the one or more olefins to the one or more isoparaffins in the stream is... Agent: Chevron Corporation
20090306445 - Method for extracting pure styrene from a pyrolysis benzine fraction: The invention relates to a method for extracting styrene, having a polymerisation quality, from pyrolysis benzol fractions containing styrene by means of extractive distillation. The pyrolysis benzol fraction is separated in a separating wall column in a C8-core fraction, a C7 fraction and a C9+-fraction, the obtained C8-core fraction is... Agent: Marshall & Melhorn, LLC
20090306446 - Monoalkylated aromatic compound production: (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s). The molar ratio of said polyalkylated aromatic compound(s) over said monoalkylated aromatic... Agent: Exxonmobil Chemical Company
20090306447 - Process for preparing acetylene by partial oxidation of hydrocarbons: A process is proposed for continuously operating a plant for preparing acetylene from hydrocarbons by partial oxidation, cleavage in an arc or pyrolysis of hydrocarbons to obtain a reaction gas mixture which is conducted through one or more compressors, the pressure of the reaction gas mixture on the suction side... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.
20090306448 - Gasoline alkylate rvp control: A process for producing an alkylate having a low Reid vapor pressure, the process including: contacting a C6+-containing hydrocarbon stream with a mixture of isopentane and isobutane in the presence of an acid catalyst in an alkylation reactor to form a dilute alkylate product, wherein the C6+-containing hydrocarbon stream includes... Agent: Osha Liang LLP / Cdtech
20090306449 - Process for the preparation of linear alpha-olefins and catalyst used therein: The present invention relates to a process for the preparation of linear low molecular weight alpha-olefins having 4 to 24 carbon atoms, comprising oligomerizing ethylene in an inert solvent in the presence of a catalyst system comprising: (i) zirconium carboxylate of the formula (R1COO)mZrCl4-m, wherein R1 is saturated or unsaturated... Agent: Sabic Americas, Inc.
20090306450 - Extractive distillation: A method for reducing corrosion in a diolefin extractive distillation process comprising preventing the formation of ammonium carbonate by promoting the formation of a carbonate salt that does not dissociate in the ammonium carbonate dissociation temperature range of that extractive distillation process.... Agent: Lyondellbasell Industries12/03/2009 > 14 patent applications in 12 patent subcategories.
20090299110 - Method for converting waste plastic to lower-molecular weight hydrocarbons, particularly hydrocarbon fuel materials, and the hydrocarbon material produced thereby: A method produces a hydrocarbonaceous fluid (a liquid mixture of hydrocarbons, or in other words a mixture of hydrocarbons which is liquid at ambient room temperature and atmospheric pressure), which functionally is a liquid hydrocarbon fuel, from a feed of waste plastic. The method comprises in broad embodiments the steps... Agent: Joan I. Norek, The Law Office Of Joan I. Norek
20090299109 - Renewable compositions: The present invention is directed to renewable compositions derived from fermentation of biomass, and integrated methods of preparing such compositions.... Agent: Cooley Godward Kronish LLP Attn: Patent Group
20090299112 - Slurry hydroconversion of biorenewable feedstocks: A method for hydroconversion of a combined feed of at least one low value petroleum derived hydrocarbon and at least one biorenewable feedstock in a hydroconversion reaction zone in the presence of a hydroconversion catalyst at hydroconversion reaction conditions for a period of time sufficient to form a hydroconversion reaction... Agent: Honeywell/uop Patent Services
20090299113 - Process for preparing alkane liquids for use in immersion lithography: A method for purifying liquid alkanes, especially dicyclic alkanes, for use in immersion lithography is provided. The method produces alkanes having absorbance at 193 nm of ≦0.1/cm, and residue of ≦100 ppm. The liquid alkane compositions are useful as immersion liquids in photomicrolithography employed for production of electronic circuits.... Agent: E I Du Pont De Nemours And Company Legal Patent Records Center
20090299114 - Selective hydrogenation process and catalyst: m
20090299115 - Dual zeolite catalyst comprising a group viii metal and a group iiia metal, and its use in isomerization of aromatic c8 compounds: A catalyst is described which comprises at least one zeolite with structure type EUO, at least one zeolite selected from IM-5 zeolite and zeolites with structure type MFI, MOR, BEA and MTW, at least one group VIII metal, at least one group IIIA metal and at least one porous mineral... Agent: Millen, White, Zelano & Branigan, P.C.
20090299116 - Polyolefin solution polymerization process and polymer: A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and a polymerization processes employing the same, especially a continuous, solution polymerization of ethylene and one or more C3-30 olefins or diolefins to prepare interpolymers having improved processing properties, are disclosed.... Agent: The Dow Chemical Company
20090299117 - Diisobutylene process: This invention is a process for producing diisobutylene from isobutylene. The process comprises first contacting a sulfonic acid resin with a reaction feed comprising isobutylene and tertiary butyl alcohol to produce a product stream comprising diisobutylene, isobutylene, tertiary butyl alcohol, and water. The product stream is distilled to produce a... Agent: Lyondellbasell Industries
20090299118 - Fcc for light feed upgrading: Systems and methods for upgrading hydrocarbons are provided. A first hydrocarbon can be cracked in the presence of one or more catalysts to provide a first cracked mixture containing one or more light cycle oils (LCOs) and one or more coked catalysts. A second hydrocarbon, containing one or more C4... Agent: Kellogg Brown & Root LLC Attn: Christian Heausler
20090299119 - Heat balanced fcc for light hydrocarbon feeds: Systems and methods for processing hydrocarbons are provided. A first hydrocarbon feed containing one or more C4 to C20 hydrocarbons having a research octane number of less than 88 can be cracked at a first temperature and in the presence of one or more catalysts to provide a first cracked... Agent: Kellogg Brown & Root LLC Attn: Christian Heausler
20090299120 - Process for producing purified gas: Process for producing purified hydrocarbon gas from a gas stream comprising methane and acidic contaminants, which process comprises the steps of cooling the gas stream in a first cooling stage to a first temperature to form a first mixture of solid and/or liquid acidic contaminants and a vapour containing gaseous... Agent: Shell Oil Company
20090299121 - Itq-26, new crystalline microporous material: ITQ-26 (INSTITUTO DE TECNOLOGIA QUIMICA number 26) is a new crystalline microporous material with a framework of tetrahedral atoms connected by atoms capable of bridging the tetrahedral atoms, the tetrahedral atom framework being defined by the interconnections between the tetrahedrally coordinated atoms in its framework. ITQ-26 can be prepared in... Agent: Exxonmobil Research & Engineering Company
20090299122 - Process for producing a purified hydrocarbon gas: Process for producing purified hydrocarbon gas from a gas stream comprising methane and acidic contaminants, which process comprises the steps cooling the gas stream by expansion to form a mixture comprising solid and/or liquid acidic contaminants and a vapour containing gaseous hydrocarbons and a reduced amount of acidic contaminants; separating... Agent: Shell Oil CompanyPrevious industry: Organic compounds -- part of the class 532- series
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