Patents by Inventor Dennis R. Kidd

Dennis R. Kidd 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: 4888316
    Abstract: An active hydrotreating catalyst composition is prepared by a process comprising the steps of (a) grinding a spent hydrotreating catalyst containing carbonaceous deposits, (b) mixing the ground spent catalyst with an alumina-containing material (preferably alumina), (c) shaping (preferably extruding) the mixture of ground spent catalyst and alumina-containing material and (d) heating the shaped mixture so as to burn off carbonaceous deposits on the ground spent catalyst component. The thus-prepared active hydrotreating catalyst is used in a process for hydrotreating hydrocarbon containing feed streams (oils) which contain metal impurities.
    Type: Grant
    Filed: November 21, 1988
    Date of Patent: December 19, 1989
    Assignee: Phillips Petroleum Company
    Inventors: Lloyd E. Gardner, Dennis R. Kidd
  • Patent number: 4758330
    Abstract: A composition of matter comprising alumina as the major component and silica as a minor component is prepared by a process comprising sequential addition of solutions of aluminum salt and alkali metal aluminate, addition of a solution of alkali metal silicate to dispersed alumina hydrogel and heating formed alumina-silica hydrogel under dehydrating conditions. The thus prepared composition of matter, optionally promoted with at least one transition metal compound, can be used as a catalyst for hydrotreating substantially liquid hydrocarbon-containing feed streams which also contain sulfur and metal compounds as impurities.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: July 19, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Dennis R. Kidd
  • Patent number: 4725415
    Abstract: Hydrogen sulfide is removed from a fluid stream containing hydrogen sulfide by contacting the fluid stream under suitable absorbing conditions with an absorbing composition comprising zinc titanate and alumina promoted with at least one metal selected from tungsten and molybdenum and at least one metal selected from Group VIII of the Periodic Table.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: February 16, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Dennis R. Kidd
  • Patent number: 4721696
    Abstract: A composition of matter comprising alumina as the major component and silica as a minor component is prepared by a process comprising sequential addition of solutions of aluminum salt and alkali metal aluminate, addition of a solution of alkali metal silicate to dispersed alumina hydrogen and heating formed alumina-silica hydrogel under dehydrating conditions. The thus prepared composition of matter, optionally promoted with at least one transition metal compound, can be used as a catalyst for hydrotreating substantially liquid hydrocarbon-containing feed streams which also contain sulfur and metal compounds as impurities.
    Type: Grant
    Filed: March 11, 1987
    Date of Patent: January 26, 1988
    Assignee: Phillips Petroleum Company
    Inventor: Dennis R. Kidd