Phosphorus, Boron Or Nitrogen Containing Catalyst Patents (Class 208/114)
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Patent number: 5762902Abstract: The invention concerns a composition comprising at least one matrix, at least one faujasite type zeolite and at least one TON type zeolite. The TON type zeolite can be Nu-10, THETA-1, KZ-2, or ISI-1. The catalyst also contains at least one hydrogenating element from groups VIII and VI.The catalyst is particularly for use for hydrocracking to maximize the yield of middle distillates (kerosine and gas oil).Type: GrantFiled: January 21, 1997Date of Patent: June 9, 1998Assignee: Institut Francais du PetroleInventors: Eric Benazzi, Samuel Mignard, Nathalie George-Marchal, Slavik Kasztelan
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Patent number: 5670037Abstract: A process for producing light olefins, especially ethylene, propylene, isobutylene and isoamylene, together with high octane gasoline as by-product, comprises that petroleum hydrocarbons are contacted with phosphorus and rare earth containing high silica zeolite having a structure of pentasil catalysts and catalytically converted at a temperature of 480.degree. to 680.degree. C. and a pressure of 1.2.times.10.sup.5 to 4.0.times.10.sup.5 Pa, with a contact time of 0.1 to 6 seconds, a weight ratio of catalyst to feedstock of 4:1 to 20:1 and a weight ratio of steam to feedstock of 0.01:1 to 0.5:1.Type: GrantFiled: April 25, 1994Date of Patent: September 23, 1997Assignees: China Petro-Chemical Corporation, Research Institute of Petroleum Processing, SINOPECInventors: Li Zaiting, Xie Chaogang, Shi Wenyuan, Jiang Fukang, Liu Shunhua, Pan Rennan, Li Shichun
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Patent number: 5660716Abstract: A fluidized-bed process for catalytic cracking of a hydrocarbon feedstock where the hydrocarbon feedstock, particularly a feedstock with a high content of basic nitrogen compounds, and a catalyst circulate in the tubular zone co-currently from the top to the bottom, where the catalyst, which is under equilibrium conditions at 150.degree. C., and a pressure of 5 mbar, adsorbs less than 250 micromols, and preferably less than 50 micromols, of pyridine/g, and whose pyridine retention, after heating at 350.degree. C. under vacuum, does not exceed 20%, and preferably not 10%, of the amount adsorbed at 150.degree. C.Type: GrantFiled: January 18, 1995Date of Patent: August 26, 1997Assignee: Total Raffinage Distribution S.A.Inventors: Michel Bourgogne, Thierry Patureaux, Nathalie Boisdron
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Patent number: 5618407Abstract: A process for catalytically cracking a hydrocarbon-containing oil employs a cracking catalyst comprising aluminum borate and zirconium borate.Type: GrantFiled: July 18, 1995Date of Patent: April 8, 1997Assignee: Phillips Petroleum CompanyInventors: Lyle R. Kallenbach, Dwayne R. Senn, Marvin M. Johnson
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Patent number: 5603821Abstract: A crystalline low-aluminum boron beta zeolite is prepared using a diquaternary ion as a template.Type: GrantFiled: September 28, 1994Date of Patent: February 18, 1997Assignee: Chevron Research CompanyInventors: Lawrence W. Jossens, Donald S. Santilli, James N. Ziemer
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Patent number: 5601699Abstract: Methods for preparing phosphorus containing catalysts comprising a large-pore zeolite, e.g., zeolite Beta, zeolite ZSM-12, or zeolite ZSM-20, and a matrix which have improved attrition resistance. The present invention includes the catalyst compositions produced by the above methods. Also included in the present invention are methods for the use of catalysts prepared by the present method in hydrocarbon cracking processes. It is desired to develop cracking catalysts for organic compound conversion that have improved cracking yields and have good attrition resistance. This invention involves the use of large pore siliceous zeolites and a highly siliceous matrix to produce a cracking catalyst with improved cracking yields and good attrition resistance. The invention further involves the use of phosphorus and the use of selected sequences for combining the compounds in the manufacture of the catalyst to enhance the attrition resistance of the catalyst.Type: GrantFiled: May 19, 1995Date of Patent: February 11, 1997Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Terry E. Helton, Grant H. Yokomizo
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Patent number: 5486284Abstract: This invention relates to use of MCM-49 in catalytic cracking. Large amounts of light olefins are produced.Type: GrantFiled: August 15, 1994Date of Patent: January 23, 1996Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Terry E. Helton, Daria N. Lissy
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Patent number: 5472594Abstract: Disclosed is a process for converting a hydrocarbon charge to a product containing improved yields of C.sub.4 /C.sub.5 olefins with a reduction in the loss of gasoline yield which comprises:passing said hydrocarbon charge into contact with a catalyst comprising a phosphorus-containing medium pore zeolite mixed as an additive with Y-zeolite in a weight ratio of 0.005 to 0.10, said zeolites in separate or composite spray dried particles,wherein the catalyst to oil ratio is 0.1 to 10, reacting said hydrocarbon charge at a temperature of 800.degree. F. to 1200.degree. F., a pressure of 0 to 150 psig, and in the absence of added hydrogen, thereby producing a product containing improved yields of C.sub.4 /.sub.5 olefins and reduced loss in gasoline yield.Type: GrantFiled: July 18, 1994Date of Patent: December 5, 1995Assignee: Texaco Inc.Inventors: Chih-Hao M. Tsang, Laurence D. Neff, Pei-Shing E. Dai
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Patent number: 5472922Abstract: Methods for preparing phosphorus containing catalysts comprising a large-pore zeolite, e.g., zeolite Beta, zeolite ZSM-12, or zeolite ZSM-20, and a matrix which have improved attrition resistance. The present invention includes the catalyst compositions produced by the above methods. Also included in the present invention are methods for the use of catalysts prepared by the present method in hydrocarbon cracking processes. It is desired to develop cracking catalysts for organic compound conversion that have improved cracking yields and have good attrition resistance. This invention involves the use of large pore siliceous zeolites and a highly siliceous matrix to produce a cracking catalyst with improved cracking yields and good attrition resistance. The invention further involves the use of phosphorus and the use of selected sequences for combining the compounds in the manufacture of the catalyst to enhance the attrition resistance of the catalyst.Type: GrantFiled: October 25, 1993Date of Patent: December 5, 1995Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Terry E. Helton, Grant H. Yokomizo
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Patent number: 5456821Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a large-pore molecular sieve component and an additive catalyst component, said additive catalyst component having been formulated in a special way to provide an improved catalyst and conversion process. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline, and increased lower olefins, especially propylene and butylene.Type: GrantFiled: August 17, 1994Date of Patent: October 10, 1995Assignee: Mobil Oil Corp.Inventors: Robert P. L. Absil, Jocelyn A. Kowalski
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Patent number: 5453176Abstract: A process is disclosed for producing an isoparaffin white oil by contacting a refinery stream, in the presence of hydrogen, with a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and a hydrogenation component to form a dewaxed oil product. The dewaxed oil product is then contacted with a hydrogenation catalyst to produce a hydrogenated oil product which is then treated to remove aromatics to produce an isoparaffin white oil.Type: GrantFiled: October 13, 1993Date of Patent: September 26, 1995Inventors: Bruce A. Narloch, Michael A. Shippey, Malcolm W. Wilson
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Patent number: 5449450Abstract: Hydrocarbon conversion processes are described which use novel microporous compositions. These compositions have a three-dimensional microporous framework structure of ZnO.sub.2, PO.sub.2 and M'O.sub.2 tetrahedral units, and an intracrystalline pore system. The M' metal is selected from the group consisting of magnesium, copper, gallium, aluminum, germanium, cobalt, chromium, iron, manganese, titanium and mixtures thereof. Examples of the hydrocarbon conversion processes include hydrocracking, hydrotreating and hydrogenation.Type: GrantFiled: December 15, 1993Date of Patent: September 12, 1995Assignee: UOPInventor: Robert L. Bedard
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Patent number: 5437781Abstract: This invention relates to a hydrocarbon conversion process using a novel silicoaluminophosphate molecular sieves. These sieves are represented by the empirical formula:mR:(Si.sub.x Al.sub.y P.sub.z)O.sub.2where R represents at least one organic templating agent present in the intracrystalline pore system; m is the molar amount of R per mole of (Si.sub.x Al.sub.y P.sub.z)O.sub.2 and has a value from zero to about 0.3; x is the mole fraction of silicon and varies from about 0.01 to about 0.98, y is the mole fraction of aluminum and varies from about 0.01 to about 0.60, z is the mole fraction of phosphorus and varies from about 0.01 to about 0.52 and x+y+z=1. These sieves have the structure of SAPO-36 or SAPO-56.Type: GrantFiled: August 15, 1994Date of Patent: August 1, 1995Assignee: UOPInventor: Stephen T. Wilson
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Patent number: 5389233Abstract: A zeolite-containing cracking catalyst is passivated with lithium sulfate and, preferably, at least one additional passivating agent (more preferably at least one antimony compound). The thus-passivated cracking catalyst is employed in a process for catalytically cracking a hydrocarbon-containing oil feed. In another embodiment, lithium sulfate and, preferably, at least one additional passivating agent are added to a hydrocarbon-containing oil feed which is catalytically cracked in the presence of a zeolite-containing cracking catalyst.Type: GrantFiled: October 14, 1993Date of Patent: February 14, 1995Assignee: Phillips Petroleum CompanyInventor: Dwayne R. Senn
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Patent number: 5366616Abstract: This invention relates to hydrocarbon conversion processes using novel molecular sieve compositions as the catalyst. These molecular sieves contain chromium in the framework structure along with aluminum and silicon. The process of preparing the chromium-containing molecular sieves involves contacting a starting molecular sieve with a solution or slurry of a fluoro salt of chromium under effective process conditions to provide for aluminum extraction and substitution of chromium.Type: GrantFiled: November 24, 1992Date of Patent: November 22, 1994Assignee: UOPInventors: Gary W. Skeels, Diane M. Chapman, Edith M. Flanigen
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Patent number: 5348643Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises clay and a zeolite component, at least one of which has been treated with a phosphorus-containing compound, for example, ammonium dihydrogen phosphate or phosphoric acid, and which is spray dried at a low pH, preferably lower than about 3. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline and increased lower olefins, especially propylene and butylene.Type: GrantFiled: July 13, 1993Date of Patent: September 20, 1994Assignee: Mobil Oil Corp.Inventors: Robert P. L. Absil, Joseph A. Herbst
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Patent number: 5318696Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a large-pore molecular sieve material and an additive catalyst composition comprising crystalline material having the structure of ZSM-5 and a silica/alumina mole ratio of less than about 30. An embodiment of the present invention comprises an improved catalytic cracking process to produce high octane gasoline, increased alkylate and potential alkylate, and increased lower olefins, especially propylene.Type: GrantFiled: December 11, 1992Date of Patent: June 7, 1994Assignee: Mobil Oil CorporationInventor: Jocelyn A. Kowalski
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Patent number: 5308475Abstract: Heavy oils are subjected to catalytic cracking in the absence of added hydrogen using a catalyst containing a zeolite having the structure of ZSM-12 and a large-pore crystalline zeolite having a Constraint Index less than about 1. The process is able to effect a bulk conversion of the oil while at the same time yielding a higher octane gasoline and increased light olefin content.Type: GrantFiled: November 23, 1992Date of Patent: May 3, 1994Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Terry E. Helton
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Patent number: 5300215Abstract: A process is provided for converting feedstock hydrocarbon compounds over a catalyst composition which comprises a molecular sieve material and a boron phosphate-containing matrix. An embodiment of the present invention comprises a catalytic cracking process to produce higher octane gasoline.Type: GrantFiled: July 15, 1992Date of Patent: April 5, 1994Assignee: Mobil Oil CorporationInventors: Girish K. Chitnis, Joseph A. Herbst
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Patent number: 5286369Abstract: Catalyst compositions are described which comprise crystalline molecular sieve zeolites and an aluminum phosphate component having a surface area of less than about 50 m.sup.2 /g and a high degree of attrition resistance. The catalysts are particularly effective for the catalytic cracking of high molecular hydrocarbon feedstocks to obtain enhanced yields of C.sub.3 and C.sub.4 olefins such as isobutylene.Type: GrantFiled: October 26, 1992Date of Patent: February 15, 1994Assignee: W. R. Grace & Co.-Conn.Inventors: Terry G. Roberie, John F. Terbot, II
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Patent number: 5240890Abstract: This invention provides a method of manufacturing a hydrocarbon conversion catalyst by spray-drying a slurry containing alumina-magnesia and a crystalline aluminosilicate zeolite, which is characterized in that the alumina-magnesia is treated with phosphoric acid containing solution before or after the slurry is subjected to a treatment of spray-drying.Type: GrantFiled: November 25, 1991Date of Patent: August 31, 1993Assignees: Nippon Oil Co., Ltd., Petroleum Energy Center FoundationInventors: Takashi Ino, Seigou Shibata
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Patent number: 5232580Abstract: A process for naphtha cracking employing new synthetic catalyst of ultra-large pore crystalline material. The new crystalline material exhibits unusually large sorption capacity demonstrated by its benzene adsorption capacity of greater than about 15 grams benzene/100 grams at 50 torr and 25.degree. C., a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units and a hexagonal arrangement of uniformly sized pores with a maximum perpendicular cross section of at least about 13 Angstrom units.An improved cracking reaction is provided for catalytic conversion of hydrocarbon feedstock which comprises contacting the feedstock under catalytic conversion conditions with acid metallosilicate solid catalyst having the structure of MCM-41 with hexagonal honeycomb lattice structure consisting essentially of uniform pores in the range of about 20 to 100 Angstroms. The cracking reaction is very selective, especially when conducted at temperature of about 425.Type: GrantFiled: June 21, 1991Date of Patent: August 3, 1993Assignee: Mobil Oil CorporationInventors: Quang N. Le, Robert T. Thomson
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Patent number: 5230789Abstract: This invention relates to hydrocarbon conversion processes using a catalytic composite which is an amorphous solid solution of phosphorus, silicon and aluminum oxides. The composite is characterized in that it contains from about 5 to about 50 weight percent Al.sub.2 O.sub.3, from about 10 to about 90 weight percent SiO.sub.2 and from about 5 to about 40 weight percent P.sub.2 O.sub.5 and has pores whose average diameters range from about 30 to about 200 Angstroms. The composite is further characterized in that it has a pore volume of about 0.35 to about 0.75 cc/g and a surface area of about 200 to about 420 m.sup.2 /g. The composite may be prepared by forming a mixture of sols of alumina and silica and a phosphorus compound, gelling the mixture to form particles and then calcining the particles to provide the amorphous solid solution. The amorphous composite may be used either as is or with additional catalytic metals (selected from the metals of Group VIB and VIII of the Periodic Table) dispersed thereon.Type: GrantFiled: June 23, 1992Date of Patent: July 27, 1993Assignee: UOPInventors: Tai-Hsiang Chao, Michael W. Schoonover
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Patent number: 5213679Abstract: Catalytic conversion of a hydrocarbon feedstock comprising a stage of catalytic cracking of a hydrocarbon feedstock, a stage of separation of the products of cracking from the catalytic mass, and a stage of regeneration and recycling of the catalytic mass and between the stage of regeneration of the catalytic mass and the stage of separation of the products of cracking there is injected continuously or intermittently, at one or more points, in admixture with at least one hydrocarbon to be treated, at least one diorganophosphite of the general formula ##STR1## where R.sub.1 and R.sub.2, which may be alike or different, are selected from the group consisting of alkyl, aryl or aralkyl groups having from 1 to 30 carbon atoms.Type: GrantFiled: October 15, 1990Date of Patent: May 25, 1993Assignee: Compagnie de Raffinage et de Distribution Total FranceInventors: Michael Bourgogne, Jean-Claude Courcelle, Claude Marty
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Patent number: 5200058Abstract: A process is provided for effecting catalytic conversion of an organic compound-containing feedstock to conversion product which comprises contacting said feedstock under catalytic conversion conditions with a catalyst comprising an active form of a functionalized inorganic, porous, non-layered crystalline phase having uniformly sized pores of at least about 13, e.g., at least about 15, Angstrom Units in diameter.Type: GrantFiled: June 8, 1992Date of Patent: April 6, 1993Assignee: Mobil Oil Corp.Inventors: Jeffrey S. Beck, David C. Calabro, Sharon B. McCullen, Bruce P. Pelrine, Kirk D. Schmitt, James C. Vartuli
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Patent number: 5196633Abstract: A process is provided for effecting catalytic conversion of an organic compound-containing feedstock to conversion product which comprises contacting said feedstock under catalytic conversion conditions with a catalyst comprising an active form of an inorganic, porous crystalline phase exhibiting, after calcination, a hexagonal arrangement of uniformly-sized pores having diameters of at least about 13, e.g., at least about 15, Angstrom Units and exhibiting a hexagonal electron diffraction pattern that can be indexed with a d.sub.100 value greater than about 18 Angstrom Units.Type: GrantFiled: March 18, 1992Date of Patent: March 23, 1993Assignee: Mobil Oil Corp.Inventors: Charles T. Kresge, Michael E. Leonowicz, Wieslaw J. Roth, James C. Vartuli
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Patent number: 5191137Abstract: There is provided a molecular sieve coated with a non-oxide ceramic. The molecular sieve may be a zeolite, such as ZSM-5, and the ceramic coating may be, e.g., boron nitride. The coated molecular sieve may be prepared by contacting the molecular sieve with a ceramic precursor material comprising a thermally decomposable material, such as polyborazylene, and thermally decomposing this thermally decomposable material. The coated molecular sieves may be used as organic conversion catalysts. The non-oxide ceramic coating may alter or enhance the shape-selective properties of the molecular sieve by providing a diffusion barrier to molecules.Type: GrantFiled: April 27, 1992Date of Patent: March 2, 1993Assignee: Mobil Oil Corp.Inventor: Jeffrey S. Beck
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Patent number: 5149421Abstract: The present invention relates to a process for catalytically dewaxing a hydrocarbon oil feedstock by contacting the feedstock with a combination of a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and a hydrogenation component and an intermediate pore size aluminosilicate zeolite catalyst.Type: GrantFiled: August 31, 1989Date of Patent: September 22, 1992Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 5139647Abstract: The present invention relates to a hydrocracking and isomerization process for preparing low pour point middle distillate hydrocarbons and lube oil from a hydrocarbonaceous feedstock boiling above about 600.degree. F. by contacting the feedstock with a catalyst containing an intermediate pore size silicoaluminophosphate molecular sieve and a hydrogenation component.Type: GrantFiled: August 14, 1989Date of Patent: August 18, 1992Assignee: Chevron Research and Technology CompanyInventor: Stephen J. Miller
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Patent number: 5114563Abstract: The catalytic conversion of hydrocarbon feedstocks is affected under effective conversion process conditions in the presence of silicoaluminophosphate-based catalyst compositions.Type: GrantFiled: November 27, 1990Date of Patent: May 19, 1992Assignee: UOPInventors: Brent M. Lok, Celeste A. Messina, Robert L. Patton, Richard T. Gajek, Thomas R. Cannan, Edith M. Flanigen
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Patent number: 5110776Abstract: A process for preparing a zeolite containing catalyst which has improved attrition resistance, and causes improved octane with no appreciable change in dry gas and coke make when used during catalytic cracking processes is disclosed. The catalyst is prepared by modifying the zeolite with a phosphate containing solution. The zeolite preferably includes an REY large pore zeolite. Treatment of the zeolite is best accomplished in an aqueous solution, at a pH range from about 2 to about 6, containing a water soluble phosphate compound. The phosphate treatment of the zeolite is carried out by deagglomerating the zeolite in an aqueous mixture in the presence of an aqueous phosphate containing solution, such as an aqueous solution of ammonium monohydrogen phosphate. The aqueous mixture containing phosphate modified zeolite is then combined with matrix precursors to form a slurry. The slurry is preferably spray dried to form the catalyst having a diameter less than 200 microns.Type: GrantFiled: March 12, 1991Date of Patent: May 5, 1992Assignee: Mobil Oil Corp.Inventors: Girish K. Chitnis, Joseph A. Herbst
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Patent number: 5071539Abstract: A catalytic composition for use in fluid catalytic cracking has an effective heat capacity of at least about 0.29 BTU/lb. .degree.F. over the range from 950.degree. F. to 1300.degree. F. The composition may include microspheres containing in situ crystallized Y-faujasite and fluidizable particles consisting essentially of dimagnesium borate. The catalytic composition may include a heat retention component selected from the group consisting of dimagnesium borate, aluminum borate, magnesium tetraborate, magnesium orthoborate, lithim aluminum borate, lithium magnesium borate, lithium aluminum silicate, and lithium aluminate.Type: GrantFiled: August 30, 1990Date of Patent: December 10, 1991Assignee: Engelhard CorporationInventors: Chi-Mi T. Hayward, Barry K. Speronello, William R. Gustafson, Gerald S. Koermer
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Patent number: 5057205Abstract: A catalytic cracking process especially useful for the catalytic cracking of high metals content feeds including resids in which the feed is cracked in the presence of a catalyst additive comprising an alkaline earth metal oxide and an alkaline earth metal spinel, preferably a magnesium aluminate spinel which acts as a trap for vanadium as well as an agent for reducing the content of sulfur oxides in the regenerator flue gas. The additive is used in the form of a separate additive from the cracking catalyst particles in order to keep the vanadium away from the cracking catalyst and so preserve the activity of the catalyst; in addition, use of separate additive particles permits the makeup rate for the additive to be varied relative to that of the cracking catalyst in order to deal with variations in the metals and sulfur content of the cracking feed.Type: GrantFiled: June 10, 1988Date of Patent: October 15, 1991Assignee: Mobil Oil CorporationInventors: Arthur A. Chin, Ajit V. Sapre, Michael S. Sarli
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Patent number: 5047141Abstract: Organic compound conversion over catalyst comprising the product of a method for controlling the catalytic activity of a large pore molecular sieve which contains framework boron is provided. Control is effected by treatment with a solution of a metal salt under conditions such that metal is incorporated into the molecular sieve framework.Type: GrantFiled: January 16, 1990Date of Patent: September 10, 1991Assignee: Mobil Oil CorporationInventor: Pochen Chu
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Patent number: 5021141Abstract: This invention relates to a new form of crystalline material identified as ZSM-12 type, to a new and useful improvement in sunthesizing said crystalline material and to use of said crystalline material prepared in accordance herewith as a catalyst for organic compound e.g. hydrocarbon compound, conversion.Type: GrantFiled: September 14, 1990Date of Patent: June 4, 1991Assignee: Mobil Oil Corp.Inventor: Mae K. Rubin
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Patent number: 4997545Abstract: A method for selective alteration of yield structures in fluid catalytic cracking units toward more middle distillate (light catalytic gas oil) and less light distillate (gasoline) by the addition of basic nitrogen compounds.Type: GrantFiled: December 6, 1985Date of Patent: March 5, 1991Assignee: Chevron Research CompanyInventors: Ashok S. Krishna, Dennis C. Kowalczyk
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Patent number: 4992160Abstract: The process for conversion of crude oil feeds in the presence of a silicoaluminophosphate molecular sieve of U.S. Pat. No. 4,440,871 and/or an aluminophosphate molecular sieve of U.S. Pat. No. 4,310,440 and at least one zeolitic aluminosilicate.Type: GrantFiled: April 10, 1987Date of Patent: February 12, 1991Assignee: UOPInventors: Gary N. Long, Regis J. Pellet, Jule A. Rabo
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Patent number: 4985135Abstract: A novel zeolite hydrocracking catalyst which contains NH.sub.4.sup.+ sites, at ambient temperatures, and surface sites constituted of a chemisorbed silica-containing species, and process for producing said catalyst. The process for preparation of the catalyst includes a series of steps: an initial step wherein an acid zeolite, or acid zeolite hydrocracking catalyst, is treated with an agent, e.g., a nitrogen-containing compound, suitably ammonia, to convert the H.sup.+ sites throughout said zeolite framework to NH.sub.4.sup.+ sites, and a subsequent post treatment of said NH.sub.4.sup.+ zeolite with an organosilane to silylate, modify and form on the surface of said zeolite a chemisorbed silica species, e.g., --O--Si(CH.sub.3).sub.3. The surface silylated catalyst is useful for the production of high octane gasoline. When employed at elevated temperatures in a hydrocracking operation the catalyst will evolve ammonia and convert to a surface silylated H.sup.Type: GrantFiled: January 10, 1990Date of Patent: January 15, 1991Assignee: Exxon Research and Engineering CompanyInventors: Ian A. Cody, Glen P. Hamner
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Patent number: 4976846Abstract: The process for conversion of crude oil feeds with catalysts comprising a Y zeolite-based cracking catalyst and at least one silicoaluminophosphate molecular sieve of U.S. Pat. No. 4,440,871, optionally including an aluminophosphate molecular sieve of U.S. Pat. No. 4,310,440.Type: GrantFiled: February 2, 1989Date of Patent: December 11, 1990Assignee: UOPInventors: Gary N. Long, Regis J. Pellet, Jule A. Rabo
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Patent number: 4975180Abstract: A catalytic cracking process is provided wherein a phosphorous containing alumina or an alkaline earth phosphorous containing alumina is added to a catalytic cracking zone for admixture with a zeolite containing cracking catalyst.Type: GrantFiled: June 5, 1989Date of Patent: December 4, 1990Assignee: Exxon Research and Engineering CompanyInventor: Paul E. Eberly
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Patent number: 4960504Abstract: Dewaxing processes for hydrocarbon feedstocks are disclosed using novel catalysts comprising specific silicoaluminophosphates of U.S. Pat. No. 4,440,871. The products of the instant dewaxing processes are characterized by lower pour points than the hydrocarbon feedstock.Type: GrantFiled: February 22, 1988Date of Patent: October 2, 1990Assignee: UOPInventors: Regis J. Pellet, Jule A. Rabo, Gary N. Long, Frank P. Gortsema, Albert R. Springer
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Patent number: 4940530Abstract: A two-stage hydrocarbon process is disclosed wherein a hydrocarbon feedstock is first hydrotreated followed by a hydrocracking step wherein a portion of the hydrotreated feedstock is hydrocracked in the presence of a catalyst having a nickel component, a tungsten component, and a support component containing a crystalline molecular sieve material present in an amount ranging from 25 to 60 wt. % based on the weight of the support component with the balance being alumina.Type: GrantFiled: February 21, 1989Date of Patent: July 10, 1990Assignee: Amoco CorporationInventors: Simon G. Kukes, Albert L. Hensley, Jr., Jeffrey C. Kelterborn, James L. Aderhold
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Patent number: 4939109Abstract: This invention comprises improvements to processes for the catalytic cracking of hydrocarbon feedstocks. One such improvement to catalytic cracking processes provides compositions comprising metals passivating agents having an increased degree of stability. These compositions comprise aqueous suspensions of antimony by vinyl copolymers, aqueous suspensions of antimony oxide by diesters of phosphoric acid, or aqueous suspensions of antimony oxide by cellulose derivatives. Another improvement to catalytic cracking processes provides a process for reducing the viscosity of liquid suspensions of metals passivating agents without substantially reducing the stability of the liquid suspension by the utilization of at least two different particle ranges of metals passivating agents. A further improvement to catalytic cracking processes provides an efficient utilization of metals passivating agents by introducing the selected agent into the catalyst regeneration cycle of a catalytic cracking unit.Type: GrantFiled: September 15, 1986Date of Patent: July 3, 1990Assignee: Phillips Petroleum CompanyInventors: Marvin M. Johnson, Donald C. Tabler
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Patent number: 4927522Abstract: A catalytic cracking process and apparatus operates with multiple feed injection points to a riser reactor with several enlarged regions. An elutriable catalyst mixture is used, comprising a conventionally sized cracking catalyst and a faster settling, shape selective additive cracking catalyst. Straight run naphtha, and a light, H.sub.2 -rich aliphatic stream are added to the base of a riser reactor. A resid feed is added higher up in the riser, with a gas oil and recycled heavy cycle oil and naphtha streams added even higher up in the riser. The riser has an elutriating base, and an elutriating upper portion, which increase residence time of the shape selective zeolite additive relative to the conventionally sized cracking catalyst.Type: GrantFiled: December 30, 1988Date of Patent: May 22, 1990Assignee: Mobil Oil CorporationInventors: Joseph A. Herbst, Hartley Owen, Paul H. Schipper
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Patent number: 4923594Abstract: A fluid catalytic cracking process comprising contacting a crude oil feedstock with a fluid catalytic cracking catalyst comprising a microporous crystalline multi-compositional, multiphase composite of SAPO-37 molecular sieve as a phase thereof in contiguous relationship with a different microporous faujasitic crystalline molecular sieve as another phase thereof.Type: GrantFiled: December 19, 1988Date of Patent: May 8, 1990Assignee: UOPInventors: Regis J. Pellet, Peter K. Coughlin, Jule A. Rabo
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Patent number: 4919787Abstract: An improved method for passivating metals in a hydrocarbon feedstock during catalytic cracking has been discovered. The method involves contacting the feedstock with a passivating agent comprising a precipitated porous rare earth oxide, alumina, and aluminum phosphate precipitate. The passivating agent may be coated on a cracking catalyst, be part of the matrix of a cracking catalyst, or be added to the cracking operation as discrete particles.Type: GrantFiled: April 7, 1989Date of Patent: April 24, 1990Assignee: Mobil Oil CorporationInventors: Arthur W. Chester, Pochen Chu, Albin Huss, Jr., Garry W. Kirker
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Patent number: 4914067Abstract: Cracking catalysts and their use in cracking processes are disclosed. The cracking catalyst are prepared using mixtures of catalytic cracking catalysts and selected silicoaluminophosphate molecular sieves of U.S. Pat. No. 4,440,871.Type: GrantFiled: November 28, 1986Date of Patent: April 3, 1990Assignee: UOPInventors: Regis J. Pellet, Peter K. Coughlin, Mark T. Staniulis, Gary N. Long, Jule A. Rabo
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Patent number: 4906351Abstract: Dewaxing processes for hydrocarbon feedstocks are disclosed using novel catalysts comprising non-zeolitic molecular sieves, such as the silicoaluminophosphates of U.S. Pat. No. 4,440,871. The products of the instant dewaxing processes are characterized by lower pour points than the hydrocarbon feedstock.Type: GrantFiled: August 17, 1987Date of Patent: March 6, 1990Assignee: UOPInventors: Regis J. Pellet, Jule A. Rabo, Gary N. Long, Frank P. Gortsema, Albert R. Springer
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Patent number: 4898660Abstract: A novel family of crystalline, microporus aluminophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures of aluminophosphate gels containing a molecular structure forming template. The family comprises a number of distinct species, each with a unique crystal structure. Calcination removes volatile extraneous matter from the intracrystalline void space and yields microporus crystalline adsorbents with uniform pores, the dimensions of which vary, among the individual species, from about 3A to 10A diameter. The composition exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as catalysts or catalyst bases in chemical reactions such as hydrocarbon conversions.Type: GrantFiled: October 20, 1983Date of Patent: February 6, 1990Assignee: Union Carbide CorporationInventors: Stephen T. Wilson, Brent M. Lok, Edith M. Flanigen
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Patent number: 4889616Abstract: The invention provides petroleum cracking and octane boosting catalysts containing a composite of an intermediate pore NZMS in combination with another non-zeolitic molecular sieve having the same frame work structure, and to processes for cracking of petroleum for the purpose of enhancing the octane rating of the gasoline produced.Type: GrantFiled: October 24, 1988Date of Patent: December 26, 1989Assignee: UOPInventors: James G. Miller, Regis J. Pellet, Edwar S. Shamshoum, Jule A. Rabo