Patents by Inventor Bruce R. Mitchell

Bruce R. Mitchell 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).

  • Vanadium passivation in a hydrocarbon catalytic cracking process
    Patent number: 4750988
    Abstract: Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive as a vanadium passivating agent.
    Type: Grant
    Filed: May 19, 1987
    Date of Patent: June 14, 1988
    Assignee: Chevron Research Company
    Inventors: Bruce R. Mitchell, Roger F. Vogel
  • Vanadium passivation in a hydrocarbon catalytic cracking process
    Patent number: 4707461
    Abstract: Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive e.g. calcium corbonate dolomite and amorphous as a vanadium passivating calcium silicate agent.
    Type: Grant
    Filed: October 30, 1985
    Date of Patent: November 17, 1987
    Assignee: Chevron Research Company
    Inventors: Bruce R. Mitchell, Roger F. Vogel
  • Vanadium passivation in a hydrocarbon catalytic cracking process
    Patent number: 4520120
    Abstract: Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive as a vanadium passivating agent.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: May 28, 1985
    Assignee: Gulf Research & Development Company
    Inventors: Bruce R. Mitchell, Roger F. Vogel
  • Vanadium passivation in a hydrocarbon catalytic cracking process
    Patent number: 4451355
    Abstract: Hydrocarbons containing vanadium are converted to lower boiling fractions employing a zeolitic cracking catalyst containing a significant concentration of a calcium-containing additive as a vanadium passivating agent.
    Type: Grant
    Filed: September 28, 1983
    Date of Patent: May 29, 1984
    Assignee: Gulf Research & Development Company
    Inventors: Bruce R. Mitchell, Roger F. Vogel
  • Method for preparing crystalline aluminosilicate cracking catalysts
    Patent number: 4083807
    Abstract: An improved catalytic cracking catalyst is obtained by a method which comprises incorporating into a crystalline aluminosilicate catalyst by ion exchange a substantial concentration of a metal selected from the group consisting of antimony, bismuth and manganese.
    Type: Grant
    Filed: January 13, 1976
    Date of Patent: April 11, 1978
    Assignee: Gulf Research & Development Company
    Inventors: Joel D. McKinney, Bruce R. Mitchell, Raynor T. Sebulsky
  • Hydrocarbon catalytic cracking process
    Patent number: 4040945
    Abstract: An improved hydrocarbon catalytic cracking process which comprises introducing tin into the cracking zone so as to maintain a volume ratio of carbon dioxide to carbon monoxide in the gaseous effluent from the catalyst regeneration zone of at least 3.0.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: August 9, 1977
    Assignee: Gulf Research & Development Company
    Inventors: Joel D. McKinney, Bruce R. Mitchell
  • Process for the cracking of high metals content feedstocks
    Patent number: 3944482
    Abstract: The cracking of high metals content feedstocks is achieved in the presence of a catalyst comprising from 1 to 40 weight percent of a zeolite having cracking activity dispersed in a large pored matrix.
    Type: Grant
    Filed: April 10, 1974
    Date of Patent: March 16, 1976
    Assignee: Gulf Research & Development Company
    Inventors: Bruce R. Mitchell, Harold E. Swift