The Catalyst Contains A Metal In Addition To The Iron, Or Another Material Utilized Contains A Metal Other Than Iron (e.g., As A Promoter, Retarder, Etc.) Patents (Class 518/721)
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Patent number: 4670474Abstract: Crystalline palladium or platinum ferrometallosilicate compositions are prepared from a silica-containing mixture by digesting a reaction mixture comprising (a) a tetraalkylammonium compound, (b) a sodium hydroxide, (c) a titanium compound, an aluminum compound, or a manganese compound, (d) an oxide of silicon, (e) an iron ion source, (f) optionally, a chelating agent and (g) water to provide a crystalline ferrometallosilicate which is then palladium or platinum ion-exchanged. Conversion of synthesis gas to low molecular hydrocarbons with high C.sub.2 -C.sub.3 alkanes selectivity employing these new ferrometallosilicates as catalysts is also disclosed.Type: GrantFiled: July 1, 1985Date of Patent: June 2, 1987Assignee: National Distillers and Chemical CorporationInventors: James A. Hinnenkamp, Vernon V. Walatka
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Patent number: 4670476Abstract: Single phase, unsupported, Group IA or IIA metal salt promoted manganese-containing iron spinel catalysts, having Fe:Mn atomic ratios of 2:1 or above, have been found to be highly active for the selective conversion of CO/H.sub.2 to alpha olefins.Type: GrantFiled: January 8, 1986Date of Patent: June 2, 1987Assignee: Exxon Research and Engineering CompanyInventors: Stuart L. Soled, Rocco A. Fiato
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Patent number: 4668647Abstract: This invention relates to a finely divided iron carbide-based catalyst which is produced by a gas phase pyrolytic decomposition reaction driven by a laser. The catalysts may be used to produce various hydrocarbons, including olefins, from CO and H.sub.2.Type: GrantFiled: May 20, 1985Date of Patent: May 26, 1987Assignee: Exxon Research and Engineering CompanyInventors: Gary W. Rice, Rocco A. Fiato, Stuart L. Soled
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Patent number: 4666880Abstract: A method of forming a support for use with a primary catalyst for conversion of a feed stream comprising carbon monoxide and hydrogen into hydrocarbons is disclosed.A primary catalyst and a method of manufacturing the catalyst is also disclosed.Furthermore, a secondary catalyst for the production of branched chain alkenes from straight chain alkenes is also disclosed, together with methods of manufacturing the secondary catalyst.Type: GrantFiled: February 20, 1986Date of Patent: May 19, 1987Assignee: The Flinders University of South AustraliaInventors: Bruce G. Baker, Neville J. Clark, Hamish McArthur, Edward Summerville
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Patent number: 4659681Abstract: This invention relates to a promoted finely divided or supported iron carbide-based catalyst which is produced by a gas phase pyrolytic decomposition reaction driven by a laser and the use of such a catalyst to produce various heavier hydrocarbons from CO and H.sub.2.Type: GrantFiled: May 20, 1985Date of Patent: April 21, 1987Assignee: Exxon Research and Engineering CompanyInventors: Gary W. Rice, Rocco A. Fiato, Stuart L. Soled
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Patent number: 4652587Abstract: A Fischer-Tropsch catalyst comprising iron co-deposited with or deposited on particles comprising a mixture of zirconia and titania, preferably formed by co-precipitation of compounds convertible to zirconia and titania, such as zirconium and titanium alkoxide. The invention also comprises the method of making this catalyst and an improved Fischer-Tropsch reaction process in which the catalyst is utilized.Type: GrantFiled: June 18, 1986Date of Patent: March 24, 1987Assignee: Air Products and Chemicals, Inc.Inventors: Paul N. Dyer, Andrew F. Nordquist, Ronald Pierantozzi
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Patent number: 4624942Abstract: A Fischer-Tropsch catalyst comprising iron co-deposited with or deposited on particles comprising a mixture of zirconia and titania, preferably formed by co-precipitation of compounds convertible to zirconia and titania, such as zirconium and titanium alkoxide. The invention also comprises the method of making this catalyst and an improved Fischer-Tropsch reaction process in which the catalyst is utilized.Type: GrantFiled: July 3, 1985Date of Patent: November 25, 1986Assignee: Air Products and Chemicals, Inc.Inventors: Paul N. Dyer, Andrew F. Nordquist, Ronald Pierantozzi
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Patent number: 4622308Abstract: An improved catalyst suitable for use in the production of hydrocarbons from the synthesis gas comprises an iron-containing Fischer-Tropsch catalyst, a zeolite and at least one metal selected from the group consisting of ruthenium, rhodium, platinum, palladium, iridium, cobalt and molybdenum. This catalyst gives a high CO conversion and hydrocarbons enriched with C.sub.5.sup.+ gasoline fraction.Type: GrantFiled: December 11, 1984Date of Patent: November 11, 1986Assignee: Research Association for Petroleum Alternatives DevelopmentInventors: Minoru Koikeda, Takashi Suzuki, Koutaro Munemura, Yoshihiko Nishimoto, Tetsuya Imai
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Patent number: 4619947Abstract: A method for the preparation of hydrocarbons and oxygenated hydrocarbons which comprises contacting a gaseous mixture of carbon monoxide, hydrogen and oxygen with a catalyst comprising a metal of Group VII or Group VIII of the Periodic Table, the amount of oxygen not exceeding 10% by volume based on the volume of hydrogen.Type: GrantFiled: July 17, 1985Date of Patent: October 28, 1986Assignee: Imperial Chemical Industries PLCInventor: Samuel D. Jackson
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Patent number: 4610975Abstract: A method of forming a support for use with a primary catalyst for conversion of a feed stream comprising carbon monoxide and hydrogen into hydrocarbons is disclosed.A primary catalyst and a method of manufacturing the catalyst is also disclosed.Furthermore, a secondary catalyst for the production of branched chain alkenes from straight chain alkenes is also disclosed, together with methods of manufacturing the secondary catalyst.Type: GrantFiled: April 19, 1984Date of Patent: September 9, 1986Assignee: The Flinders University of South AustraliaInventors: Bruce G. Baker, Neville J. Clark, Hamish McArthur, Edward Summerville
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Patent number: 4608359Abstract: Catalysts comprising iron carbide on a surface modified titania support wherein said support comprises a surface modifying oxide of tantalum, niobium, vanadium and mixtures thereof supported on said titania wherein at least a portion of said surface modifying oxide is in a non-crystalline form. These catalysts are useful for Fischer-Tropsch hydrocarbon synthesis reactions. Preferably, at least about 25 wt. % of said surface modifying oxide will be in a non-crystalline form.Type: GrantFiled: July 29, 1985Date of Patent: August 26, 1986Assignee: Exxon Research and Engineering Co.Inventors: Israel E. Wachs, Rocco A. Fiato, Claudio C. Chersich
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Patent number: 4607021Abstract: Fly ash is activated by heating a screened magnetic fraction of the ash in a steam atmosphere and then reducing, oxidizing and again reducing the hydrothermally treated fraction. The activated fly ash can be used as a carbon monoxide disproportionating catalyst useful in the production of hydrogen and methane.Type: GrantFiled: January 4, 1982Date of Patent: August 19, 1986Assignee: The Standard Oil CompanyInventors: David R. Corbin, Louis J. Velenyi, Marc A. Pepera, Serge R. Dolhyj
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Patent number: 4596831Abstract: There is disclosed a resin-metal (complex) catalyst, a method for its preparation, activation and use in carrying out Fischer-Tropsch reactions. The complex is a resin which has attached to it a coordination compound(s) and a metal(s). The complex has utility as a Fischer-Tropsch catalyst. More specifically, the complex is useful for the gaseous conversion of synthesis gas (carbon monoxide and hydrogen) to hydrocarbons.Type: GrantFiled: September 9, 1985Date of Patent: June 24, 1986Assignee: The Goodyear Tire & Rubber CompanyInventors: Wen-Liang Hsu, Richard J. Kurr, Neil A. Maly, Dane K. Parker, Robert W. Strozier
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Patent number: 4594331Abstract: Substantially C.sub.2 + alkane hydrocarbons are produced from mixtures of CO and H.sub.2 by contacting same, at elevated temperature, with a catalyst comprising a mixture of iron carbide and ilmenite supported on titania wherein the ratio of the iron present in said supported iron carbide and ilmenite, calculated as Fe.sub.2 O.sub.3, to the surface area of the titania support ranges from about 2.times.10.sup.-3 to 25.times.10.sup.-3 grams per square meter.Type: GrantFiled: June 14, 1985Date of Patent: June 10, 1986Assignee: Exxon Research and Engineering Co.Inventors: Rocco A. Fiato, Edwin L. Kugler
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Patent number: 4568698Abstract: Catalysts comprising a medium to large port zeolite modified by the oxide or acid of an element selected from the group consisting of Group IIIA to VIIA elements and, a Fischer-Tropsch catalyst wherein the ratio of zeolite to Fischer-Tropsch component is from about 0.1 to 50:1 can be employed to produce fuel grade saturated gaseous hydrocarbons from synthesis gas. A process is employed which includes the step of contacting synthesis gas over the foregoing catalyst at a reaction temperature of from about 100.degree. C. to 500.degree. C. and at a pressure of from about one atmosphere (0.1 MPa) to about 200 atmospheres (20 MPa) and at a gas hourly space velocity of from about 10 to 100,000. A method is also provided for the preparation of the combination catalyst. The catalyst and process for its use results in a small liquid aromatic product also being formed which is suitable for forming gasoline. Olefins and oxygenates are essentially eliminated.Type: GrantFiled: September 21, 1984Date of Patent: February 4, 1986Assignee: The Standard Oil CompanyInventors: Michael J. Desmond, Marc A. Pepera
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Patent number: 4565831Abstract: A process is described using novel thallium-promoted iron catalysts in CO hydrogenation with steam. Mixtures of CO and steam are converted to liquid C.sub.6 -C.sub.13 hydrocarbons containing substantial amounts of C.sub.6 -C.sub.13 aromatics.Type: GrantFiled: September 29, 1983Date of Patent: January 21, 1986Assignee: Exxon Research and Engineering Co.Inventors: Franklin J. Wright, Michael A. Richard, James C. Pirkle, Jr.
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Patent number: 4564642Abstract: A process for the production of unsaturated hydrocarbons by the catalytic hydrogenation of carbon monoxide is disclosed wherein the reaction takes place in the presence of a catalyst containing an oxide of a first metal selected from the transition metals of Group IV and a second metal selected from Group VIII of the periodic table. The reaction takes place at a reaction temperature of between about 250.degree. C. and 350.degree. C. and a reaction pressure of between about 10 and 30 bar.Type: GrantFiled: November 13, 1981Date of Patent: January 14, 1986Assignee: Ruhrchemie AktiengesellschaftInventors: Bernd Bussemeier, Carl D. Frohning, Gerhardt Horn, Werner Kluy
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Patent number: 4564643Abstract: A process for producing a mixed alcohol by contacting a synthesis gas with a catalyst, wherein the catalyst is a solid substance prepared by:calcining a mixture of (A) a zinc compound, (B) a compound of at least one metal selected from iron, cobalt, and nickel, and (C) a compound of at least one metal selected from the metals belonging to Groups II-VII of the Periodic Table;impregnating the above-calcined product with (D) an alkali metal compound and/or an alkaline earth metal compound;calcining the resulting mixture; andreducing the thus-calcined product.The selectivity of the mixed alcohol is high in the process of the present invention. This is one of the advantages of the present invention. Furthermore, the proportion of alcohols other than methanol in the mixed alcohol is relatively high, and thus the mixed alcohol is suitable for use as an alcohol component to be compounded to gasoline.Type: GrantFiled: May 7, 1985Date of Patent: January 14, 1986Assignee: Research Association for Petroleum Alternatives DevelopmentInventors: Masatoshi Shibata, Soichi Uchiyama, Yoshinobu Aoki
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Patent number: 4559365Abstract: Catalysts comprising iron carbide on a surface modified titania support wherein said support comprises a surface modifying oxide of tantalum, niobium, vanadium and mixtures thereof supported on said titania wherein at least a portion of said surface modifying oxide is in a non-crystalline form. These catalysts are useful for Fischer-Tropsch hydrocarbon synthesis reactions. Preferably, at least about 25 wt. % of said surface modifying oxide will be in a non-crystalline form.Type: GrantFiled: June 29, 1984Date of Patent: December 17, 1985Assignee: Exxon Research and Engineering Co.Inventors: Israel E. Wachs, Rocco A. Fiato, Claudio C. Chersich
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Patent number: 4548953Abstract: Substantially C.sub.2 + alkane hydrocarbons are produced from mixtures of CO and H.sub.2 by contacting same, at elevated temperature, with a catalyst comprising a mixture of iron carbide and ilmenite supported on titania wherein the ratio of the iron present in said supported iron carbide and ilmenite, calculated as Fe.sub.2 O.sub.3, to the surface area of the titania support ranges from about 2.times.10.sup.-3 to 25.times.10.sup.-3 grams per square meter.Type: GrantFiled: July 2, 1984Date of Patent: October 22, 1985Assignee: Exxon Research and Engineering Co.Inventors: Rocco A. Fiato, Edwin L. Kugler
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Patent number: 4544674Abstract: Iron-cobalt spinels which contain low levels of cobalt, in an iron/cobalt atomic ratio of 7:1 to 35:1, are converted to Fischer-Tropsch catalysts upon reduction and carbiding that exhibit high activity and selectivity to C.sub.2 -C.sub.6 olefins and low CH.sub.4 production.Type: GrantFiled: December 14, 1983Date of Patent: October 1, 1985Assignee: Exxon Research and Engineering Co.Inventors: Rocco A. Fiato, Stuart L. Soled, Angelo A. Montagna
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Patent number: 4540714Abstract: A gas rich in methane is prepared by the methanantion of a synthesis gas containing carbon oxides, hydrogen and optionally other gases in the presence of one or more gaseous sulphur compounds, normally in an amount of at least 10 ppm preferably at least 200 ppm by volume, calculated as H.sub.2 S, with the aid of a catalyst comprising vanadium and/or molybdenum, which during the process is present as one or more sulphides, on a support comprising titanium dioxide.A high activity and a high selectivity for methane are obtained. A further advantage is that, by far, the main constituent of the higher hydrocarbons formed is ethane, which, by conversion into ethylene, is an important raw material in petrochemical synthesis.The selectivity for methane formation may be further improved by promoting the catalyst with compounds, especially sulphides of metals of groups IA, IIA and/or IIIB, particularly cerium.Type: GrantFiled: November 1, 1982Date of Patent: September 10, 1985Assignee: Haldor Torsoe A/SInventors: Karsten Pedersen, Jens R. Rostrup-Nielsen, Ib Greve H. Jorgensen, Kjeld J. Andersen
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Patent number: 4539334Abstract: A Fischer-Tropsch process comprises contacting hydrogen and carbon monoxide in the presence of a conventional Fischer-Tropsch catalyst in combination with an amount of phosphorus effective to selectively poison the Fischer-Tropsch catalyst so as to improve the selectivity of said catalyst to C.sub.2 -C.sub.4 olefins.Type: GrantFiled: November 14, 1983Date of Patent: September 3, 1985Assignee: The Dow Chemical CompanyInventor: Craig B. Murchison
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Patent number: 4518714Abstract: The present invention provides an improvement in processes for the selective production of .alpha.-olefins from synthesis gas. The improvement embodied in the process of the present invention comprises the use of a catalyst system which comprises palladium, iron, and zinc. The zinc component of the catalyst system is preferably provided in the form of a zinc oxide support onto which the remaining catalyst components are deposited. The reaction is conducted under conventional conditions of temperature and pressure, preferably at about 220.degree. to 350.degree. C. and about 50 to 500 psig.Type: GrantFiled: July 11, 1984Date of Patent: May 21, 1985Assignee: Eastman Kodak CompanyInventor: Bruce L. Gustafson
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Patent number: 4513104Abstract: CO hydrogenation process is described utilizing novel thallium-promoted iron catalysts. Mixtures of CO/H.sub.2 are selectively converted to liquid C.sub.6 -C.sub.11 hydrocarbons containing C.sub.6 -C.sub.11 aromatics, alpha olefins and very small amounts of C.sub.23 + hydrocarbon waxes.Type: GrantFiled: March 25, 1983Date of Patent: April 23, 1985Assignee: Exxon Research and Engineering Co.Inventors: Franklin J. Wright, Michael A. Richard, James C. Pirkle
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Patent number: 4511674Abstract: A gas mixture rich in ethan and/or ethylene is prepared by the conversion of a synthesis gas mixture containing hydrogen, carbon oxides and, optionally, other gases in the presence of one or more gaseous sulphur compounds, in an amount of at least 10 ppm by volume, preferably at least 200 ppm, calculated as H.sub.2 S, utilizing a catalyst consisting of one or more metals of group V-B and/or VI-B of the Periodic Table of Elements, preferably molybdenum and/or vanadium, together with one or more iron group metals each metal being in the form of free metal, oxide, or sulphide, the catalyst being supported on a porous, refractory oxidic support containing titanium dioxide.There is achieved a high activity and notably a high selectivity for the formation of ethane/ethylene, small amounts of propane, not insignificant amounts of methane and almost full suppression of the formation of higher hydrocarbons.The invention also relates to the catalyst prepared by impregnation or coprecipitation techniques.Type: GrantFiled: October 15, 1982Date of Patent: April 16, 1985Assignee: Haldor Topsoe A/SInventors: Karsten Pedersen, Jens R. Rostrup-Nielsen, Ib Greve H. Jorgensen
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Patent number: 4504600Abstract: CO hydrogenation process for producing alcohols is described utilizing novel thallium-promoted iron catalysts. Mixtures of CO/H.sub.2 are selectively converted to liquid C.sub.6 -C.sub.12 hydrocarbons containing C.sub.6 -C.sub.12 alcohols with attendant low methane and low CO.sub.2 make.Type: GrantFiled: March 25, 1983Date of Patent: March 12, 1985Assignee: Exxon Research and Engineering Co.Inventors: Franklin J. Wright, Michael A. Richard, James C. Pirkle
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Patent number: 4487851Abstract: Process for conversion of synthesis gas to hydrocarbons in general and to aromatics rich gasoline in particular by contacting the gas with a catalyst composition comprising gallium oxide and/or indium oxide and at least one additional oxide of a metal from Group IB-VIIB or VIII of the Periodic Table. Cerium, thorium, and uranium are the preferred additional metals. The catalyst composition may optionally contain a further component e.g. a zeolite which in some cases can also act as a support. The present process (i) results in a low make of C.sub.1 to C.sub.2 hydrocarbons, (ii) is capable of using synthesis gas which has a low H.sub.2 :CO ratio, and (iii) gives a higher conversion of CO than achieved hitherto under similar conditions.Type: GrantFiled: February 22, 1983Date of Patent: December 11, 1984Assignee: British Petroleum Company, p.l.c.Inventors: Malcolm P. Heyward, Dennis Young
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Patent number: 4455395Abstract: In a process for the production of unsaturated hydrocarbons comprising catalytic conversion of a feed gas comprising carbon oxides and hydrogen, the improvement which comprises carrying out said conversion at a temperature of 250.degree. to 350.degree. C. and under a pressure of 10 to 30 bars, said catalyst comprising at least one difficultly reducible oxide of the transition metals of Groups V and/or VII of the Periodic Table combined with at least one metal of Group 8 of the Periodic Table.Type: GrantFiled: August 20, 1982Date of Patent: June 19, 1984Assignee: Ruhrchemie AktiengesellschaftInventors: Bernd Bussemeier, Carl D. Frohning, Gerhardt Horn, Werner Kluy
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Patent number: 4446251Abstract: A process for selectively preparing a mixture of two-carbon atom oxygenated hydrocarbons, namely, acetic acid, ethanol and acetaldehyde, by continuously contacting a gaseous reaction mixture containing hydrogen and carbon monoxide with a solid catalyst comprising rhodium in combination with sodium at reaction conditions correlated so as to favor the formation of a substantial proportion of such two-carbon atom products.Type: GrantFiled: March 17, 1982Date of Patent: May 1, 1984Assignee: Union Carbide CorporationInventors: William J. Bartley, Thomas P. Wilson
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Patent number: 4436834Abstract: Novel thallium promoted iron catalysts are described as being useful in CO hydrogenation processes utilizing CO/H.sub.2 mixtures for selectively producing C.sub.6 -C.sub.11 liquid hydrocarbons, containing C.sub.6 -C.sub.11 aromatic hydrocarbons and only very small amounts of C.sub.23 + hydrocarbon waxes.Type: GrantFiled: September 15, 1982Date of Patent: March 13, 1984Assignee: Exxon Research and Engineering Co.Inventor: Franklin J. Wright
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Patent number: 4423156Abstract: The conventional process for the preparation of unsaturated hydrocarbons comprises catalytic hydrogenation of carbon oxides at 220.degree. to 500.degree. C. and pressures of up to 30 bars. It has been found that, by carrying out the foregoing reaction in the presence of at least one low molecular weight aliphatic alcohol, the yield of olefins and the catalyst life are substantially and surprisingly improved.Type: GrantFiled: June 13, 1983Date of Patent: December 27, 1983Assignee: Ruhrchemie AktiengesellschaftInventors: Bernd Bussemeier, Boy Cornils, Carl-Dieter Frohning
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Patent number: 4410637Abstract: A process for the preparation of a hydrocarbon mixture from a mixture of carbon monoxide and hydrogen, using a catalyst combination containing one or more metal components with catalytic activity for the conversion of an H.sub.2 /CO mixture into acyclic hydrocarbons, e.g., Ru, Co, Fe, Ni and Cr, and as carrier a laminar compound capable of absorbing metal ions or metal salts by intercalation. Preferably the laminar compound is a laminar crystalline silicate, e.g., magadiite.Type: GrantFiled: October 23, 1981Date of Patent: October 18, 1983Assignee: Shell Oil CompanyInventors: Andras G. T. G. Kortbeek, Emmanuel E. A. Neel, Guy Barre
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Patent number: 4408069Abstract: A homogeneous catalytic process for the conversion of methanol to methyl acetate. The process comprises contacting CO with methanol in the presence of a catalytically effective amount of an iron-cobalt carbonyl complex of the formula M[FeCo.sub.3 (CO).sub.12 ] or M[CoFe.sub.3 (CO).sub.13 ] where M is hydrogen or a cation and an iodide promoter, heating the resultant mixture at temperatures of from 100.degree. to 250.degree. C. at pressures of from 5 to 100 MPa.Type: GrantFiled: October 6, 1980Date of Patent: October 4, 1983Assignee: Exxon Research and Engineering Co.Inventor: Gerald Doyle
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Patent number: 4397964Abstract: An unsupported particulate catalyst especially useful for methanation reactions is prepared by a method comprising fluid-bed roasting agglomerates of nickel sulfide to form a particulate precursor material which can be reduced to composite particles consisting essentially of a nickel-oxide core with a then coherent adherent layer of nickel thereon, the reduced particles being characterized at the surface by the presence of microcapillary pores interconnecting with each other and the outer surface of the particles.Type: GrantFiled: November 18, 1981Date of Patent: August 9, 1983Assignee: The International Nickel Company, Inc.Inventors: John K. Pargeter, Umar M. U. Ahmad
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Patent number: 4385193Abstract: Middle distillate hydrocarbons are produced from feed mixtures of carbon monoxide and hydrogen by contacting said feed at elevated temperature and pressure in a first stage with certain impregnated catalysts and contacting at least the middle distillate fraction of the product of the first stage in the presence of hyrogen with a catalyst containing at least one metal having hydrogenation activity supported on a porous carrier.Type: GrantFiled: June 8, 1981Date of Patent: May 24, 1983Assignee: Shell Oil CompanyInventors: Henricus M. J. Bijwaard, Michael A. M. Boersma, Swan T. Sie
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Patent number: 4279830Abstract: The conversion of less than 1 H.sub.2 /CO ratio syngas to high yield of C.sub.3 plus product is accomplished with a CO reducing catalyst comprising shift characteristics and the product of Fischer-Tropsch synthesis is converted to premium gasoline and distillate fuels by contact with acidic ZSM-5 zeolite.The syngas conversion may be accomplished in any catalyst system permitting a very close temperature control on the exotherm encountered and the gasoline-distillate yield relationship may be varied as a function of temperature and pressure.Type: GrantFiled: June 1, 1979Date of Patent: July 21, 1981Assignee: Mobil Oil CorporationInventors: Werner O. Haag, Tracy J. Huang
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Patent number: 4269783Abstract: A method is disclosed for the conversion of a syngas to a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90% overhead and being a predominantly olefinic product, wherein the olefins have substantially internal double bonds. The method for accomplishing this stated result involves an improvement in the method for the conversion of synthesis gas by contacting the same with a catalyst composite comprising a mixture of a Fischer-Tropsch catalyst and a volume excess of an acidic catalyst, e.g., silica-alumina or a crystalline aluminosilicate zeolite and wherein the activity of the acidic component is balanced with the activity of the Fischer-Tropsch component so as to maximize the yield of desired olefinic product.Type: GrantFiled: March 7, 1977Date of Patent: May 26, 1981Assignee: Mobil Oil CorporationInventors: James A. Brennan, Philip D. Caesar, Julius Ciric, William E. Garwood, Robert E. Holland