Patents by Inventor Garry W. Kirker
Garry W. Kirker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20010001449Abstract: A catalytic process is provided for converting a high boiling point range petroleum stream to distillate range product which includes contacting a petroleum feedstock having a boiling range from about 600° F. to about 1100° F. with a hydrocracking catalyst having a zeolite component with a framework silica to alumina ratio of at least 200:1, preferably 2000:1, and a hydrogenation component. The process is conducted under superatmospheric hydrogen partial pressure to effect at least 20% conversion, with at least 50% of the converted product remaining in the boiling range of about 330 to about 730° F.Type: ApplicationFiled: December 30, 1998Publication date: May 24, 2001Inventors: THOMAS R. KILIANY, W. THOMAS MO, GARRY W. KIRKER, GEORGE H. HATZIKOS
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Patent number: 5382730Abstract: There is provided a process for ring opening of aromatics and cycloaliphatics, as well as isomerization of aliphatics. The feedstream to this process comprises hydrocarbons having 6 carbon atoms. The process involves the use of at least two reactors connected in series. The first reactor comprises a zeolite catalyst and is operated under conditions which particularly promote ring opening. The catalyst in this first reactor may comprise zeolite Beta and platinum. A downstream reactor is operated under conditions to promote isomerization of aliphatics. The catalyst in the second reactor may comprise alumina, platinum and a chloride component. Hydrogen in the effluent of the first reactor may be removed and recycled to the first reactor. Hydrogen required for the second reactor may be satisfied by hydrogen remaining dissolved in the effluent from the first reactor after hydrogen is recycled to the first reactor.Type: GrantFiled: July 12, 1993Date of Patent: January 17, 1995Assignee: Mobil Oil Corp.Inventors: Lloyd L. Breckenridge, Kenneth J. Del Rossi, Albin Huss, Jr., Clinton R. Kennedy, Garry W. Kirker
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Patent number: 5286370Abstract: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals form the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.Type: GrantFiled: December 17, 1991Date of Patent: February 15, 1994Assignee: Mobil Oil CorporationInventors: Pochen Chu, Albin Huss, Jr., Hartley Owen, Joseph A. Herbst, Garry W. Kirker, Paul H. Schipper
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Patent number: 5243114Abstract: There is provided a method for preparing alpha-olefin oligomers of superior lubricating properties by contacting an alpha-olefin feed under oligomerization conditions with a catalyst comprising an activated layered silicate containing silica and oxide of Group VIB metal, e.g., Cr, between its layers. The catalyst can be activated by exposure to an oxidation gas at high temperature followed by treatment with a reducing agent, e.g., CO.Type: GrantFiled: September 8, 1992Date of Patent: September 7, 1993Assignee: Mobil Oil CorporationInventors: Ivy D. Johnson, Garry W. Kirker, Michael E. Landis, Margaret M. Wu
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Patent number: 5236681Abstract: There is provided a method for synthesizing layered silicates such as magadiite and kenyaite. The source of silica used in this method is freshly precipitated from a silicate solution. For example, this silica source may be obtained by treating an aqueous solution of sodium silicate with sulfuric acid to form an amorphous silica precipitate. This silica precipitate is not dried to reduce its activity prior to use.Type: GrantFiled: November 30, 1989Date of Patent: August 17, 1993Assignee: Mobil Oil Corp.Inventors: Pochen Chu, Garry W. Kirker, Sowmithri Krishnamurthy, James C. Vartuli
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Patent number: 5219814Abstract: A moderate pressure hydrocracking process in which a highly aromatic, substantially dealkylated feedstock is processed to high octane gasoline and low sulfur distillate by hydrocracking over a catalyst, preferably comprising ultrastable Y and a Group VIII metal and a Group VI metal, in which the amount of the Group VIII metal content is incorporated at specified proportion into the framework aluminum content of the ultrastable Y component. The feedstock which is preferably a light cycle oil has an aromatic content of at least 50, usually at least 60 percent, and an API gravity not more than 25. The hydrocracking typically operates at 400-1000 psig at moderate to high conversion levels to maximize the production of monocyclic aromatics which provide the requisite octane value to the product gasoline. The distillate products from the hydrocracker are reduced in their sulfur content.Type: GrantFiled: December 19, 1990Date of Patent: June 15, 1993Assignee: Mobil Oil CorporationInventors: Garry W. Kirker, Michael E. Landis, Daria N. Lissy, Sadi Mizrahi, Michael S. Sarli, Stuart S. Shih
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Patent number: 5209913Abstract: A process for producing a natural gas condensate having a reduced amount of mercury from a mercury-containing natural gas wellstream, wherein the wellstream is separated into gaseous and liquid fractions. The treatment of the gaseous fraction includes treatment with a carbonate solution which, upon regeneration, yields an acid gas. A portion of the acid gas is mixed with the liquid fraction, the mixture is then filtered, passed over a substance capable of adsorbing hydrogen sulfide, and separated into a stream comprising a natural gas condensate and at least one other stream comprising lower molecular weight hydrocarbons and/or other gases.Type: GrantFiled: April 27, 1989Date of Patent: May 11, 1993Assignee: Mobil Oil CorporationInventors: Costandi A. Audeh, Barry E. Hoffman, Garry W. Kirker
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Patent number: 5185484Abstract: A Pt/Ba/USY catalyst prepared with a high SiO.sub.2 /Al.sub.2 O.sub.3 ratio USY gives improved aromatics selectivity compared to other Pt/USY containing catalysts. The improved selectivity is a result of the method of catalyst preparation which includes incorporation of a Group IIA metal after platinum incorporation.Type: GrantFiled: December 26, 1989Date of Patent: February 9, 1993Assignee: Mobil Oil CorpInventors: Kenneth J. Del Rossi, Garry W. Kirker, Albin Huss, Jr.
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Patent number: 5183559Abstract: There is provided a catalyst comprising a layered silicate, such as magadiite, containing interspathic polymeric silica which serves to prop open the layers. The catalyst further comprises rare earth cations which are exchanged with other cations in the silicate. It has been discovered that this rare earth cation exchange imparts enhanced hydrothermal stability to the catalyst. There is also provided a method for making this catalyst and a process for using this catalyst for cracking hydrocarbons. In the cracking process, the catalyst is regenerated.Type: GrantFiled: September 13, 1991Date of Patent: February 2, 1993Assignee: Mobil Oil Corp.Inventors: Garry W. Kirker, Thomas F. Degnan, Jr., Albin Huss, Jr., Michael E. Landis
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Patent number: 5179054Abstract: A layered catalyst suited to the catalytic cracking of heavy feeds comprises a core and a shell. The shell comprises at least 5 wt % of at least 1 molecular sieve having openings of at least 8 angstroms. The core comprises at least 10 wt % of at least 1 molecular sieve having openings comprising a 12 or less-membered ring and has a reduced, if any, content of said molecular sieve having openings of at least 8 angstroms, relative to its concentration in the shell. Suitable molecular sieve materials having openings of at least 8 angstroms include MCM-41, VPI-5, MCM-9 and layered metal oxides, e.g., pillared clays. The required molecular sieve of the core can include zeolite Y, Ultrastable Y or intermediate pore size zeolites such as ZSM-5. The shell which may further contain a metals passivator can act as a metals sink, and can remove metals from the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell material.Type: GrantFiled: July 24, 1991Date of Patent: January 12, 1993Assignee: Mobil Oil CorporationInventors: Paul H. Schipper, Hartley Owen, Joseph A. Herbst, Garry W. Kirker, Albin Huss, Jr., Pochen Chu
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Patent number: 5171422Abstract: A process is provided for producing a high quality lubricating oil base stock in increased yield. The process includes a hydrocracking step employing a catalyst composition comprising a zeolite of the faujasite type, e.g., zeolite USY, possessisng a silica:alumina ratio of at least about 50:1, and a hydrogenation component.Type: GrantFiled: January 11, 1991Date of Patent: December 15, 1992Assignee: Mobil Oil CorporationInventors: Garry W. Kirker, Robert A. Ware
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Patent number: 5108969Abstract: A low acidity Group VIII metal-containing zeolite MCM-22 catalyst, said zeolite exhibiting an Alpha value of not greater than about 150, is provided for conversion of aliphatic C.sub.2 to C.sub.12 hydrocarbon(s) to olefin(s) and/or aromatic(s).Type: GrantFiled: August 22, 1990Date of Patent: April 28, 1992Assignee: Mobil Oil Corp.Inventors: Kenneth J. Del Rossi, Ralph M. Dessau, Albin Huss, Jr., Garry W. Kirker, David O. Marler, Randall D. Partridge
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Patent number: 5107054Abstract: The process relates to converting normal paraffins and/or mono-methyl branched paraffins, which are generally of low octane value, to more highly branched isoparaffins which are generally superior to normal paraffins in octane.Type: GrantFiled: March 1, 1991Date of Patent: April 21, 1992Assignee: Mobil Oil CorporationInventors: Kenneth J. Del Rossi, Albin Huss, Jr., Garry W. Kirker
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Patent number: 5077253Abstract: A layered catalyst contains a core of at least one, and preferably three, molecular sieve components within a shell layer of reduced molecular sieve content. A preferred catalyst consists of a core of a large pore molecular sieve, preferably a dealuminized Y-type zeolite, a shape selective paraffin cracking/isomerization component, preferably HZSM-5, and a shape selective aliphatic aromatization component, preferably gallium ZSM-5, within a shell of an alumina-rich, matrix. The shell can capture metals from the feeds being processed, it can act as a metals sink, and can remove metals from the unit by attrition. The catalyst is preferably prepared by forming the core and then coating or encapsulating the core with a shell having a reduced molecular sieve content. The shell may contain a pillared clay or other very large pore cracking component. The shell may be an attritable coating of an amorphous rare earth oxide, aluminum oxide and aluminum phosphate composite, which traps metals.Type: GrantFiled: May 1, 1990Date of Patent: December 31, 1991Assignee: Mobil Oil CorporationInventors: Pochen Chu, Albin Huss, Jr., Hartley Owen, Joseph A. Herbst, Garry W. Kirker, Paul H. Schipper
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Patent number: 5063038Abstract: There is provided a method for preparing a zeolite other than ZSM-5 from a reaction mixture comprising a mixed organic directing agent which is a combination of (a) an organic nitrogen containing compound such as an amine or a quaternary ammonium compound and (b) an alcohol and/or diol. Particular zeolites synthesized by this method include ZSM-22 and ZSM-23. The use of an alcohol or a diol may inhibit the coformation of ZSM-5. Especially when used to prepare ZSM-23, this method enables the preparation of more catalytically active ZSM-23 of reduced crystallite size and also enables the use of lower crystallization temperatures. Particular mixed organic directing agents for the preparation of ZSM-23 are combination of (a) pyrrolidine and (b) ethanol or ethylene glycol.Type: GrantFiled: August 31, 1987Date of Patent: November 5, 1991Assignee: Mobil Oil Corp.Inventors: Garry W. Kirker, Donald J. Klocke, James C. Vartuli, Pochen Chu, David O. Marler, John P. McWilliams
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Patent number: 5043512Abstract: A process is provided for converting feedstock alkylaromatic compounds by isomerization over a catalyst comprising MCM-22.Type: GrantFiled: August 31, 1990Date of Patent: August 27, 1991Assignee: Mobil Oil Corp.Inventors: Pochen Chu, Garry W. Kirker, John D. Kushnerick, David O. Marler
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Patent number: 5043501Abstract: A process for producing 2,6-dimethylnaphthalene by alkylation of an alkylaromatic, e.g. toluene, with a C.sub.5 olefin alkylating agent, e.g. 1-pentene, in the presence of a suitable alkylation catalyst, and dehydrocyclization of the resulting alkylate with a dehydrocyclization catalyst to generate a dimethylnaphthalene product rich in the 2,6-isomer. Additional process steps can include isomerization of the product and further alkylation.Type: GrantFiled: March 15, 1990Date of Patent: August 27, 1991Assignee: Mobil Oil Corp.Inventors: Kenneth J. Del Rossi, Larry A. Green, Albin Huss, Jr., Garry W. Kirker, Michael E. Landis
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Patent number: 5037530Abstract: There is provided a process for cracking hydrocarbon feedstocks which include large hydrocarbon molecules. Examples of such feedstocks are those which include a large proportion of resids. The catalyst used in this process comprises a layered silicate, such as magadiite, containing interspathic polymeric silica which serves to prop open the layers.Type: GrantFiled: August 22, 1989Date of Patent: August 6, 1991Assignee: Mobil Oil CorporationInventors: Garry W. Kirker, Thomas F. Degnan, Jr., Albin Huss, Jr., Michael E. Landis
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Patent number: 5019664Abstract: Aliphatic C.sub.2 to C.sub.12 hydrocarbon(s) are converted to olefin(s) and/or aromatic(s) in the presence of a low acidity Group VIII metal-containing zeolite MCM-22 catalyst, said zeolite exhibiting an Alpha value of not greater than about 150.Type: GrantFiled: January 24, 1990Date of Patent: May 28, 1991Assignee: Mobil Oil Corp.Inventors: Kenneth J. Del Rossi, Ralph M. Dessau, Albin Huss, Jr., Garry W. Kirker, David O. Marler, Randall D. Partridge
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Patent number: 5015360Abstract: A process for hydrocracking 343.degree. C..sup.+ feedstock is disclosed. The process employs a catalyst which comprises a layered silicate, such as magadiite or kenyaite, which contains interspathic polymeric silica. The catalyst also contains at least one base metal, i.e., Cr, Mo, W, Fe, Co, and Ni.Type: GrantFiled: December 29, 1989Date of Patent: May 14, 1991Assignee: Mobil Oil CorporationInventors: Thomas F. Degnan, Garry W. Kirker, Richard F. Socha, Michael R. Stapleton, Ivy D. Johnson