Patents by Inventor James V. Kennedy

James V. Kennedy 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).

  • Patent number: 5260240
    Abstract: A process is disclosed for passivating the reactivity of contaminant metals, such as nickel and vanadium, which have been deposited on a catalytic cracking catalyst, by adding to the cracking catalyst a mixture of a calcium-containing material and a magnesium-containing material in a separate reactor in the presence of steam. The preferred calcium-containing material is dolomite and the preferred magnesium-containing material is sepiolite. It is also preferred to include antimony and/or bismuth compounds in the additive mixture.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: November 9, 1993
    Assignee: Chevron Research and Technology Company
    Inventors: Charles F. Guthrie, Lawrence W. Jossens, James V. Kennedy, John A. Paraskos
  • Patent number: 5120425
    Abstract: A crystalline zeolite SSZ-33 is prepared using a quaternary ion as a template wherein said zeolite is used in hydrocarbon conversion processes.
    Type: Grant
    Filed: May 18, 1990
    Date of Patent: June 9, 1992
    Assignee: Chevron Research Company
    Inventors: Stacey I. Zones, Dennis L. Holtermann, Donald S. Santilli, Lawrence W. Jossens, James V. Kennedy, Andrew Rainis
  • Patent number: 5071807
    Abstract: A composition useful for processing hydrocarbonaceous feedstocks is disclosed comprising a mixture of a calcium/magnesium-containing material and a magnesium-containing material. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: December 10, 1991
    Assignee: Chevron Research Company
    Inventors: James V. Kennedy, Lawrence W. Jossens
  • Patent number: 5002653
    Abstract: A catalytic cracking process is disclosed employing a dual component cracking catalyst system comprising zeolite as a first component and a mixture of a calcium/magnesium-containing material and a magnesium-containing material as a second component. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: March 26, 1991
    Assignee: Chevron Research Company
    Inventors: James V. Kennedy, Lawrence W. Jossens
  • Patent number: 4988654
    Abstract: A dual component cracking catalyst system is disclosed comprising zeolite as a first component and a mixture of a calcium/magnesium-containing material and a magnesium-containing material as a second component. The preferred calcium/magnesium-containing material is dolomite and the preferred magnesium-containing material is sepiolite.
    Type: Grant
    Filed: December 29, 1989
    Date of Patent: January 29, 1991
    Assignee: Chevron Research Company
    Inventors: James V. Kennedy, Lawrence W. Jossens
  • Patent number: 4944865
    Abstract: A process for cracking high metals content feedstocks which comprises contacting said feedstocks under catalytic cracking conditions with a novel catalytic cracking composition comprising a solid cracking catalyst and a magnesium oxide diluent.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: July 31, 1990
    Assignee: Chevron Research Company
    Inventors: Mario L. Occelli, James V. Kennedy
  • Patent number: 4650564
    Abstract: A process for cracking high metals content feedstocks which comprises contacting said feedstocks under catalytic cracking conditions with a novel catalytic cracking composition comprising a solid cracking catalyst and an alumina diluent.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: March 17, 1987
    Assignee: Gulf Research & Development Company
    Inventors: Mario L. Occelli, James V. Kennedy
  • Patent number: 4465588
    Abstract: A process for cracking high metals content feedstocks which comprises contacting said charge stock under catalytic cracking conditions with a novel catalytic cracking composition comprising a solid cracking catalyst and a diluent containing a selected magnesium compound or a selected magnesium compound in combination with one or more heat-stable metal compounds.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: August 14, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Mario L. Occelli, James V. Kennedy
  • Patent number: 4465779
    Abstract: A novel catalytic cracking composition comprising a solid cracking catalyst and a diluent containing a selected magnesium compound or a selected magnesium compound in combination with one or more heat-stable metal compounds.
    Type: Grant
    Filed: May 6, 1982
    Date of Patent: August 14, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Mario L. Occelli, James V. Kennedy
  • Patent number: 4217295
    Abstract: Methanation of carbon oxides such as carbon monoxide and carbon dioxide with hydrogen to produce methane is carried out with the aid of a heated catalyst which is the calcination product of a serpentine containing nickel and optionally magnesium and other elements together with silicon in the essentially laminar nickel serpentine. The catalysts exhibit good conversion at relatively low temperatures, are relatively insensitive to high temperature excursions, and have an extended life.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 12, 1980
    Assignee: NL Industries, Inc.
    Inventors: Heinz G. Friedrich, James V. Kennedy
  • Patent number: 4214978
    Abstract: A novel particulate material for promoting combustion of carbon monoxide to carbon dioxide in the regeneration zone of a cyclic fluid cracking process without substantially affecting the ability of separate fluid cracking catalyst particles containing an active crystalline zeolitic aluminosilicate component to catalyze the hydrocarbon conversion reaction in the conversion zone. The novel promoter particles comprise coherent, catalytically inert microspheres of calcined kaolin clay having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of about 2/1, a surface area (B.E.T.) in the range of about 10 to 15 m.sup.2 /g., a pore volume (as determined by nitrogen absorption) in the range of about 0.02 to 0.04 cc./g., the calcined microspheres being impregnated with a trace amount of a platinum compound and being free from a component capable of cracking hydrocarbons in the absence of added hydrogen.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: July 29, 1980
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: James V. Kennedy, Lawrence B. Dight
  • Patent number: 4171286
    Abstract: A novel particulate material for promoting combustion of carbon monoxide to carbon dioxide in the regeneration zone of a cyclic fluid cracking process without substantially affecting the ability of separate fluid cracking catalyst particles containing an active crystalline zeolitic aluminosilicate component to catalyze the hydrocarbon conversion reaction in the conversion zone. The novel promoter particles comprise coherent, catalytically inert microspheres of calcined kaolin clay having a SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of about 2/1, a surface area (B.E.T.) in the range of about 10 to 15 m.sup.2 /g., a pore volume (as determined by nitrogen absorption) in the range of about 0.02 to 0.04 cc./gm., the calcined microspheres being impregnated with a trace amount of a platinum compound and being free from a component capable of cracking hydrocarbons in the absence of added hydrogen.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: October 16, 1979
    Assignee: Engelhard Minerals & Chemicals Corporation
    Inventors: Lawrence B. Dight, James V. Kennedy