With Group Vi Metal Or Metal Oxide Patents (Class 208/136)
  • Patent number: 5186918
    Abstract: Molecular sieve compositions are prepared by extracting aluminum and substituting chromium and/or tin for extracted aluminum to give molecular sieve products containing framework chromium and/or tin atoms. The process of preparing the chromium and/or tin-containing molecular sieves invovles contacting a starting molecular sieve with a solution or slurry of at least one of a fluoro salt of chromium or a fluoro salt of tin under effective process conditions to provide for aluminum extraction and substitution of chromium and/or tin. These compositions are effective as hydrocarbon conversion catalysts and for separating mixtures of molecular species.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: February 16, 1993
    Assignee: UOP
    Inventors: Gary W. Skeels, Diane M. Chapman, Edith M. Flanigen
  • Patent number: 5186816
    Abstract: A high aromatic-content solvent having a boiling point range of 185.degree.-245.degree. C. and a mixed aniline point of not higher than 21.degree. C. is produced by reforming a petroleum fraction containing at least 50% by volume of components having a boiling point range of 150.degree.-215.degree. C. and then subjecting to a fractional distillation.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: February 16, 1993
    Assignee: Nippon Mining Co., Ltd.
    Inventors: Fumio Maruyama, Shiro Aizawa, Kazuo Fujiyoshi
  • Patent number: 5151259
    Abstract: A crystalline aluminosilicate having its anhydrous state a formula expressed in terms of mol ratios as follows:xQ:0.01-0.1 M.sub.2/n O:0-0.8 Z.sub.2 O.sub.3 :SiO.sub.2 :0.0001-0.5 MeS,wherein:Q is an organic nitrogen compound;Z is aluminium, boron, gallium or mixtures thereof;x is between 0 and 0.5;M is at least one metal cation of valence n; andMe is at least one of the metals which form an insoluble sulfide compound.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: September 29, 1992
    Assignee: Haldor Topsoe A/S
    Inventor: Niels J. Blom
  • Patent number: 5143596
    Abstract: Process for upgrading a sulphur-containing feedstock consisting of a hydrocarbon mixture substantially boiling in the gasoline range which process consists of subjecting the feedstock to a reforming step and subsequently to a hydrotreating step, and recovering from the hydrotreating step a product substantially boiling in the gasoline range and having increased aromaticity and decreased sulphur content.
    Type: Grant
    Filed: November 23, 1990
    Date of Patent: September 1, 1992
    Assignee: Shell Oil Company
    Inventors: Ian E. Maxwell, Frederik Muller, Frank H. H. Khouw, Kim H. Khor, Jacques Lucien
  • Patent number: 5114565
    Abstract: Catalytic reforming processes using boron-containing large-pore zeolites.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: May 19, 1992
    Assignee: Chevron Research and Technology Company
    Inventors: Stacey I. Zones, Dennis L. Holtermann, Andrew Rainis
  • Patent number: 5098551
    Abstract: Lubricating base oils having a high viscosity index, preferably at least 135, are manufactured by catalytic hydroisomerization of a hydrocarbonaceous feedstock, derived from a waxy crude oil, which feedstock has not been treated to remove a lubricating base oil fraction and which feedstock contains at least 30% by weight wax and has at least 80% by weight boiling above 300.degree. C. and at most 30% by weight boiling above 540.degree. C.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: March 24, 1992
    Inventors: Jean-Marie A. Bertaux, Jean-Claude M. Holley, Martinus M. P. Janssen
  • Patent number: 5091075
    Abstract: A process for the reforming of hydrocarbons is improved by the use of an enhanced nucleate boiling surface in a selected portion of the feed effluent heat exchanger. In a vertical type heat exchanger where the reforming feedstream enters at a lower end of the heat exchanger and is at least partially vaporized in the heat exchanger by contact with a reforming effluent stream that enters an upper end of the heat exchanger and is at least partially condensed therein, an enhanced nucleate boiling surface is formed on the heat exchange surface that is in contact with the entering liquid phase portion of the stream feed. The enhanced nucleate boiling surface increases the amount of condensing that takes place on the opposite side of the heat exchange surface in a boiling-condensing zone.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: February 25, 1992
    Assignee: UOP
    Inventors: Patrick S. O'Neill, Elias G. Ragi, Thomas J. Godry
  • Patent number: 5045178
    Abstract: A process for producing methylnaphthalenes is disclosed, comprising subjecting a fraction containing at least 50% by volume of components within the boiling range of 195.degree.-215.degree. C., which is obtained by distilling a raffinate resulting from the recovery of normal paraffins from a hydrodesulfurized kerosene fraction, to reforming reaction and then recovering methylnaphthalenes from the product oil.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: September 3, 1991
    Assignee: Nippon Mining Co., Ltd.
    Inventors: Fumio Maruyama, Shirou Aizawa, Kazuo Fujiyoshi
  • Patent number: 5030338
    Abstract: A process and apparatus are disclosed for the catalytic conversion of hydrocarbons in a transport or sub-transport fluidized bed reaction zone. Inert particles are used to transfer heat to the reaction zone. The particles may be heated separately from the catalyst in a combustion zone or together with the catalyst in a regenerator. Fuel is fired to heat the inert particles or a mixture of catalyst and inert particles. Hydrogen deficient fuels such as charcoal or coke are preferred.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: July 9, 1991
    Assignee: Mobil Oil Corp.
    Inventors: Mohsen N. Harandi, Hartley Owen
  • Patent number: 5028406
    Abstract: A crystalline, galliosilicate molecular sieve having the mordenite structure and the following composition expressed in terms of oxide mole ratios in the anhydrous state:Ga.sub.2 O.sub.3 :xSiO.sub.2 :yM.sub.2 O:tQ.sub.2 Owhere M is an alkali metal, preferably sodium, Q is a quaternary ammonium cation, preferably a benzyltriethylammonium cation, x equals 5.0 to 30, y equals 0.1 to 0.99, preferably 0.40 to 0.90, t equals 0.01 to 0.9, preferably 0.1 to 0.6 and yet equals about 1.0. The crystalline, galliosilicate molecular sieve of the invention may be employed, after reducing its alkali metal content and decomposing Q, as a component of a catalyst which can be used in a variety of chemical conversion processes.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: July 2, 1991
    Assignee: Union Oil Company of California
    Inventor: Mario L. Occelli
  • Patent number: 4973785
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; "EL" represents at least one element capable of forming a framework oxide unit; and "w", "x", "y" and "z" represent the mole fractions of element(s) "EL", aluminum, phosphorus and silicon, respectively, present as framework oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: November 27, 1990
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Lawrence D. Vail, Edith M. Flanigen, Robert L. Patton, Stephen T. Wilson
  • Patent number: 4963248
    Abstract: A process for production of dimethylnaphthalenes is disclosed, comprising subjecting a raffinate resulting from the recovery of normal paraffins from a hydrodesulfurized kerosene fraction to reforming reaction and then recovering dimethylnaphthalenes from the product oil.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: October 16, 1990
    Assignee: Nippon Mining Co., Ltd.
    Inventors: Kyoji Yano, Shirou Aizawa
  • Patent number: 4914255
    Abstract: A method is disclosed for increasing heat transfer efficiency between a conduit and a gas flowing through the conduit by fluidizing in the gas stream a Geldart Type A powder having controlled fines content. The invention further provides a method for integrating two fluid beds to transfer heat from a heat source to a fluid-bed reaction zone.
    Type: Grant
    Filed: December 15, 1988
    Date of Patent: April 3, 1990
    Assignee: Mobil Oil Corp.
    Inventors: Amos A. Avidan, Reuel Shinnar
  • Patent number: 4882038
    Abstract: Crystalline molecular sieves having a three-dimensional microporous framework structures of MgO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of magnesium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: November 21, 1989
    Assignee: UOP
    Inventors: Brent M. T. Lok, Lawrence D. Vail, Edith M. Flanigen
  • Patent number: 4743359
    Abstract: A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: May 10, 1988
    Assignee: Union Oil Company of California
    Inventors: Pauline B. Ting, Howard D. Simpson
  • Patent number: 4734539
    Abstract: Naphtha is isomerized using a medium-pore zeolite catalyst.Isomerization is accomplished by contacting the hydrocarbon with the medium-pore zeolite catalyst at a temperature in the range 200.degree. to 400.degree. C., preferably, at a space velocity of 0.05 to 75 v/v/hr, preferably, at a pressure at 14.7 to 1500 psig.The medium zeolite catalyst employed has a silica to alumina ratio in the range of about 5 to >30, preferably 10-20, more preferably 12-17 and a pore size of about 5.5 to 6.8 .ANG.. The preferred medium pore zeolite is a zeolite of the offretite type. The zeolite preferably has associated with it a hydrogenation component which is typically a Group VIII metal, oxide or sulphide, or mixtures thereof, preferably platinum or palladium. The preferred offretite type zeolite may be any of the readily available commercial materials and may have their SiO.sub.2 /Al.sub.2 O.sub.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: March 29, 1988
    Assignee: Exxon Research and Engineering Company
    Inventors: Lawrence J. Lawlor, William J. Murphy
  • Patent number: 4627910
    Abstract: A hydrocarbon conversion catalyst containing cobalt and a Group VIB metal and having a substantially uniform cross-sectional phosphorus distribution is prepared by impregnating support particles with a solution containing dissolved cobalt, phosphorus, and at least 17 weight percent of Group VIB metal components, calculated as the trioxides, having a pH of less than 1.2, and characterized by an extinction coefficient in the ultraviolet spectrum of about 0.7.times.10.sup.4 to about 1.8.times.10.sup.4 liters/cm.multidot.moles of Group VIB metal, followed by aging, drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: December 9, 1986
    Assignee: Union Oil Company of California
    Inventor: William S. Millman
  • Patent number: 4587009
    Abstract: Hydrogenation of hydrocarbons with catalysts produced by co-gelling a smectite with an inorganic metal oxide which is unstable with respect to retaining a high surface area, to produce a co-gel of high surface area which has good retention of surface area at high temperatures. Suitable smectites for the practice of this invention are hectorite, chlorite, montmorillionite, beidellite, or admixtures of two or more of these materials with each other or with other materials, or the like. Exemplary of inorganic oxide gels suitable for the practice of this invention are the Group IV-B metal oxides, especially titanium oxide, and other metal oxides such as the oxides of thorium, uranium, silicon, aluminum, and the like. A crystalline aluminosilicate zeolite can be composited with this material to supply an acidic function.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: May 6, 1986
    Assignee: Exxon Research and Engineering Co.
    Inventor: Kenneth S. Wheelock
  • Patent number: 4568450
    Abstract: A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.
    Type: Grant
    Filed: March 30, 1984
    Date of Patent: February 4, 1986
    Assignee: Union Oil Company of California
    Inventors: Pauline B. Ting, Howard D. Simpson
  • Patent number: 4565621
    Abstract: Y Zeolites are prepared with rare earth cations and Group VIII metal cations exchanged thereinto, such zeolites being especially useful in hydrocracking catalysts. The zeolites of the invention are prepared by exchanging a sodium Y zeolite with cations of one or more rare earth elements followed by a calcination, an ammonium ion exchange, and a Group VIII metal cation exchange. The resultant zeolite is not only highly active for catalytically promoting hydrocracking reactions but is also, after use in hydrocracking environments resulting in coke deposition, essentially completely regenerable by combustion of the coke.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: January 21, 1986
    Assignee: Union Oil Company of California
    Inventor: John W. Ward
  • Patent number: 4522708
    Abstract: The present invention relates to catalysts for reforming petroleum products in mass form or supported for example, on aluminium or active carbon, the active part of which consists of tungsten and molybdenum carbides corresponding to the general formula:(Mox W.sub.1-x)y Czwherein0<x<11.ltoreq.y.ltoreq.20.8.ltoreq.z.ltoreq.1Nitridation prior to their use in a mixture H.sub.2 +N.sub.2 substantially increases the activity and selectivity thereof.These catalysts are not very sensitive to contamination by sulphur products.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: June 11, 1985
    Assignee: Eruotungstene-Poudres
    Inventors: Lucien Leclercq, Marcelle Provost
  • Patent number: 4512877
    Abstract: A process is disclosed whereby a full range catalytically cracked gasoline is upgraded over a mixture of Zn/Cr catalyst and a crystalline iron silicate catalyst having a SiO.sub.2 /Fe.sub.2 O.sub.3 molar ratio of 10-250 or a mixture of a Zn/Cr catalyst and a crystalline iron/aluminum silicate catalyst having a SiO.sub.2 /Fe.sub.2 O.sub.3 molar ratio below 250 and a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of at least 500.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: April 23, 1985
    Assignee: Shell Oil Company
    Inventors: Eduard P. Kieffer, Swan T. Sie
  • Patent number: 4513098
    Abstract: Certain organometallic precursors selectively interact with surface hydroxyl groups on an inorganic oxide support such as silica, alumina or silica-alumina or to provide a uniform distribution of metal complexes on the surfaces of said support. Subsequent reduction of the support results in a high dispersion of uncomplexed metal centers to which other organometallic precursors are subsequently attached. The substantially attached organometallic precursors may be reduced and/or sulfided to yield a highly active hydrogenation catalyst having a plurality of metal species in a highly dispersed distribution.
    Type: Grant
    Filed: June 28, 1983
    Date of Patent: April 23, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Ying-Yen P. Tsao
  • Patent number: 4496784
    Abstract: Molybdenum is ion exchanged into a crystalline aluminosilicate zeolite, replacing metals such as sodium, calcium, and potassium, by contacting the zeolite with an aqueous solution containing molybdenyl cations (i.e., MoO.sub.2.sup.2+) and having a pH below 7.0 but higher than that which would substantially affect the crystallinity of the zeolite. The resulting zeolite, when calcined or sulfided, is useful as a catalyst for hydrocarbon conversion reactions, particularly with respect to the hydrodealkylation of toluene to benzene and methane.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: January 29, 1985
    Assignee: Union Oil Company of California
    Inventor: Eric L. Moorehead
  • Patent number: 4448676
    Abstract: This invention relates to a method of reforming gasoline to raise the octane number thereof utilizing a novel catalyst comprising a low valence chromium metallic component composited with a non-oxidizing high surface area support. The low valence metallic component is present in divalent form or as a combination of the metallic state and the divalent form--preferably as a chloride and/or bromide. The preferred support is a high surface area coke.
    Type: Grant
    Filed: July 18, 1983
    Date of Patent: May 15, 1984
    Assignee: Energy Modification, Inc.
    Inventor: William K. T. Gleim
  • Patent number: 4434315
    Abstract: Process for isomerizing linear ethylenic hydrocarbons to branched ethylenic hydrocarbons having the same number of carbon atoms in the molecule, in the presence of steam and of a catalyst containing alumina, silica and a metal or compound of a metal selected from chromium, palladium, nickel, copper and silver at critical concentrations of silica and of metal, and with a critical proportion of water with respect to the hydrocarbons.
    Type: Grant
    Filed: May 21, 1982
    Date of Patent: February 28, 1984
    Assignee: Institut Francais du Petrole
    Inventors: Bernard Juguin, Jean Miquel
  • Patent number: 4394252
    Abstract: This invention relates to a method of reforming gasoline to raise the octane number thereof utilizing a novel catalyst comprising a low valence titanium, vanadium and/or chromium metallic component composited with a non-oxidizing high surface area support. The low valence metallic component is present in divalent form or as a combination of the metallic state and the divalent form-- preferably as a chloride and/or bromide. The preferred support is a high surface area coke.
    Type: Grant
    Filed: December 29, 1981
    Date of Patent: July 19, 1983
    Inventor: William K. T. Gleim
  • Patent number: 4347123
    Abstract: A catalyst constituted of a Group VI-B metal, especially chromium and molybdenum, composited with an inorganic oxide support, notably alumina, neutralized; and the use of such catalyst in reforming naphthas of high olefin content, particularly non-hydrofined olefinic naphthas which contain high concentrations of nitrogen and sulfur.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: August 31, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Charles H. Mauldin, William C. Baird, Jr.
  • Patent number: 4344865
    Abstract: Steam dehydrocyclization of paraffinic hydrocarbons to aromatic hydrocarbons is effected in the presence of supported catalyst, typically bearing rhodium and preferably chromium and potassium, and characterized by a pH less than about 8.
    Type: Grant
    Filed: February 5, 1981
    Date of Patent: August 17, 1982
    Assignee: Texaco Inc.
    Inventors: Russell R. Reinhard, Tansukhlal G. Dorawala, Edwin R. Kerr
  • Patent number: 4330396
    Abstract: In a cyclic process for upgrading a hydrocarbon or hydrocarbon-forming feed by steps including regenerating of the zeolite catalyst, the operating period or cycle is substantially increased by using a ZSM-5 zeolite having a silica-to-alumina mol ratio in the range 61 to 140.
    Type: Grant
    Filed: October 18, 1978
    Date of Patent: May 18, 1982
    Assignee: Chevron Research Company
    Inventor: Stephen J. Miller
  • Patent number: 4327236
    Abstract: A new catalytic composition and its method of preparation are presented. The catalytic composition comprises a crystalline borosilicate and a porous refractory inorganic oxide, said borosilicate and said inorganic oxide having been intimately admixed with one another, said borosilicate comprising a molecular sieve material having the following composition in terms of mole ratios of oxides:0.9.+-.0.2 M.sub.2/n O:B.sub.2 O.sub.3 :YSiO.sub.2 :ZH.sub.2 Owherein M is at least one cation having a valence of n, Y is between 4 and about 600, and Z is between 0 and about 160.The catalytic composition can be used for the conversion of hydrocarbon streams, e.g., the isomerization of xylene feedstocks.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: April 27, 1982
    Assignee: Standard Oil Company (Indiana)
    Inventor: Marvin R. Klotz
  • Patent number: 4325808
    Abstract: A hydrocarbon conversion catalyst system comprising a mixture of a first catalyst containing a noble metal component deposed on a refractory inorganic oxide and a second catalyst containing a non-noble metal component deposed on a support containing a refractory inorganic oxide and a crystalline aluminosilicate material, and a reforming method employing such catalyst system are disclosed.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: April 20, 1982
    Assignee: Standard Oil Company (Indiana)
    Inventors: Dae K. Kim, Ralph J. Bertolacini
  • Patent number: 4320240
    Abstract: Steam dehydrocyclization of paraffinic hydrocarbons to aromatic hydrocarbons is effected in the presence of catalyst, typically a supported rhodium catalyst bearing copper.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: March 16, 1982
    Assignee: Texaco Inc.
    Inventors: Richard F. Love, Tansukhlal G. Dorawala, Edwin R. Kerr
  • Patent number: 4313818
    Abstract: A hydrocracking process is provided utilizing high surface area metal-containing catalysts prepared by dispersing a thermally decomposable metal compound in a hydrocarbon oil having a Conradson carbon content of up to about 50 weight percent, the thermally decomposable metal compound being added in an amount sufficient to obtain a specified ratio of atoms of Conradson carbon of the oil chargestock to atoms of metal constituent of the thermally decomposable compound, heating the compound in the presence of a gas comprising either hydrogen or hydrogen sulfide or hydrogen and hydrogen sulfide to form a solid high surface area catalyst. The metal constituent of the thermally decomposable metal compound may be a metal of Groups II, III, IV, V, VIB, VIIB, VIII or mixtures thereof.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: February 2, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Clyde L. Aldridge, Roby Bearden, Jr.
  • Patent number: 4309278
    Abstract: A catalyst is provided which comprises a hydrogenation component and a support comprising agglomerates of alumina having initially not more than 0.20 cubic centimeters per gram of its pore volume in pores greater than about 400 Angstroms in diameter and a minor amount of silica. A process for the hydroconversion of hydrocarbonaceous oils utilizing the catalyst is also provided.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: January 5, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: Willard H. Sawyer
  • Patent number: 4304658
    Abstract: Steam dehydrocyclization of paraffinic hydrocarbons to aromatic hydrocarbons is effected in the presence of supported catalyst, typically bearing rhodium and preferably chromium and potassium, and characterized by a pH less than about 8.
    Type: Grant
    Filed: December 13, 1979
    Date of Patent: December 8, 1981
    Assignee: Texaco Inc.
    Inventors: Russell R. Reinhard, Tansukhlal G. Dorawala, Edwin R. Kerr
  • Patent number: 4171258
    Abstract: A process for the steam hydroconversion of light hydrocarbon feed stocks relatively deficient in hydrogen and high in sulfur, which process comprises passing the feed and steam into a steam hydroconversion zone over a dual-function catalyst comprising molybdenum on a high surface area alumina base or on an iron oxide-chromium oxide base, said catalyst having been reduced and sulfided prior to use. A portion of the hydrocarbon is steam reformed to produce hydrogen in the reaction zone which is then used in situ to hydrogenate the olefins and aromatics in the feed and also removes sulfur therefrom, all processes occurring in the same reaction zone.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: October 16, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventor: Noel J. Gaspar
  • Patent number: 4157356
    Abstract: This case relates to a process for producing aromatic hydrocarbons by contacting a C.sub.3 -C.sub.8 hydrocarbon with a gallium catalyst on a silica support which has a surface area greater than 500 m.sup.2 /g and a pore volume less than 0.8 ml/g.
    Type: Grant
    Filed: December 2, 1977
    Date of Patent: June 5, 1979
    Assignee: The British Petroleum Company Limited
    Inventors: Stanley N. Bulford, Evan E. Davies
  • Patent number: 4151071
    Abstract: Nonaromatic hydrocarbons are converted to aromatic hydrocarbons by contacting with a catalyst of alumina promoted with an alkali metal oxide and, optionally, chromium oxide under dehydrocyclization conditions of temperature and pressure. In a specific embodiment, hexene-1 and heptene-1 are converted, respectively, to benzene and toluene in the presence of alkali metal oxide-alumina catalysts, optionally promoted with chromium oxide, with good conversion and high selectivity.
    Type: Grant
    Filed: July 26, 1977
    Date of Patent: April 24, 1979
    Assignee: Phillips Petroleum Company
    Inventor: John W. Myers
  • Patent number: 4124487
    Abstract: The process for selective hydrocracking of hydrocarbon fractions consists in that hydrocarbon fractions are contacted with hydrogen at a respective molar ratio of 1:2.5-20, a temperature of 280.degree. - 520.degree. C., and a pressure of 15 - 100 kgf/cm.sup.2 on a zeolite catalyst with a pore size of 4.6 to 6.0 A and containing 0.1 to 5 wt.% of metal of Group VIII of the periodic system, and a tervalent chromium cation with a minimum exchange capacity equal to 30 percent.The herein-proposed process for selective hydrocracking of hydrocarbon fractions is capable of upgrading petroleum products accompanied by producing a synthetic substitute of natural gas.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: November 7, 1978
    Inventors: Albert M. Tsybulevsky, Kapitolina P. Danilushkina, Petr M. Pak
  • Patent number: 4116870
    Abstract: A catalyst useful for the hydrotreatment of hydrocarbons comprising, on a refractory inorganic oxide support, the following metals:(a) from 0.02 to 2% of at least one platinum metal;(b) from 0.02 to 2% of at least one metal belonging to the group consisting of zirconium, titanium, and tungsten;(c) from 0.02 to 2% tin.This catalyst is preferably halogenated, typically with chlorine, from 0.4 to 2%.Catalysts according to this invention are particularly useful for isomerization of a charge of alkylaromatic hydrocarbons, and particularly those having eight carbon atoms. The preferred isomerization catalyst is a platinum, tin and zirconium trimetallic catalyst halogenated with chlorine approximately from 1 to 2% based on the total catalyst weight.Said catalysts are also useful for hydroreforming and aromatizing being surprisingly superior for all these types of reactions.
    Type: Grant
    Filed: May 28, 1976
    Date of Patent: September 26, 1978
    Assignee: Compagnie Francaise de Raffinage
    Inventors: Joseph Edouard Weisang, Philippe Engelhard
  • Patent number: 4111841
    Abstract: Novel hydrotreating catalysts, including methods of making and using same, which are a combination of platinum group metals with Sn and with Mn, Mo, and/or Cr, and optionally with a halogen and sulfur; on a refractory mineral oxide carrier.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: September 5, 1978
    Assignee: Compagnie Francaise de Raffinage
    Inventors: Joseph-Edouard Weisang, Philippe Engelhard
  • Patent number: 4105587
    Abstract: A particle pack composition comprising alumina having improved attrition resistance is produced by dry steaming a dough-like mixture of water, a hydrocolloid-forming compound and particles comprising alumina prior to calcining the mixture.
    Type: Grant
    Filed: November 16, 1977
    Date of Patent: August 8, 1978
    Assignee: Chevron Research Company
    Inventor: Donald W. Blakely
  • Patent number: 4102822
    Abstract: A catalyst composition, a method for its preparation and a hydrotreating process using same. The catalyst comprises a rigidly interconnected pack of irregularly shaped particles having an average diameter below 0.15 mm. Among the particles and throughout the pack are access channels comprising interconnected macropores having diameters in the 0.1 to 15 micron range which contribute at least 5 percent of the pore volume. The particles comprise materials selected from the group consisting of at least one refractory oxide component and one hydrogenation component. For each 100 parts of the oxide component the composition contains, in parts by weight, an amount of the hydrogenating component, calculated as metal, in the range from 0.1 to 50 parts.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: July 25, 1978
    Assignee: Chevron Research Company
    Inventor: Bernard F. Mulaskey
  • Patent number: 4051017
    Abstract: A process and catalyst for converting hydrocarbon oils to desirable components by contacting said oils in the presence of hydrogen under hydrocarbon conversion conditions with a catalyst comprising a catalytic amount of a catalytic metal supported on gamma alumina.
    Type: Grant
    Filed: February 27, 1976
    Date of Patent: September 27, 1977
    Assignee: Continental Oil Company
    Inventor: William Ralph Beaty, Jr.
  • Patent number: 3974098
    Abstract: A method of producing a catalyst comprising impregnating shaped carriers of refractory material (e.g., alumina) with a solution of the salts of an active metal constituent (e.g., nickel) and an acidic or amphoteric constituent (e.g., uranium), the shaped carriers being fired to decompose the salts to form the oxide of the metal constituent and a compound or solid solution of the oxides of an active metal and acidic or amphoteric constituents, the active components of the catalyst being formed by reduction of the said oxides and/or compound or solid solution in a reducing atmosphere to form the active metal and the acidic or amphoteric constituent in a reduced or unreduced state, the shaped carriers then being impregnated with a water soluble compound of alkali or alkaline earth metal (e.g. barium hydroxide) and finally fixed as the carbonate by heating in an atmosphere containing CO.sub.2.
    Type: Grant
    Filed: February 20, 1974
    Date of Patent: August 10, 1976
    Assignees: Price-Pearson Refractories Limited, British Gas Corporation
    Inventor: Derek Gabriel Gavin
  • Patent number: 3966833
    Abstract: Process for hydrodealkylating an alkylaromatic hydrocarbon charge at a temperature from 400.degree. to 650.degree.C under a pressure from 1 to 30 kg/cm.sup.2 at a space velocity from 1 to 10 by reacting said charge with hydrogen in a molar proportion with respect to the effluent of the reactor in the range from 1 to 10, in the presence of a catalyst containing alumina and at least one metal selected from ruthenium, osmium, palladium, rhodium, iridium, platinum and manganese in an amount from 0.05 to 5 % of the catalyst, said catalyst having a specific surface from 1 to 100 m.sup.2 /g., a total pore volume of 0.2-0.8 g/cc and a heat of neutralization lower than 10 calories per gram are measured by ammonia adsorption at 320.degree. C. under 300 mm Hg.
    Type: Grant
    Filed: December 13, 1974
    Date of Patent: June 29, 1976
    Assignee: Institut Francaise du Petrole, de Carburants et Lubrifiants
    Inventors: Jean Cosyns, Bernard Juguin, Jean-Francois Le Page, Jean Miquel