Patents by Inventor Richard A. Kemp

Richard A. Kemp 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: 4880526
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, and a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g, at least about 20% of the pore volume in pores having diameters greater than about 350 .ANG. and at least about 20% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: November 14, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4880524
    Abstract: This invention relates to hydrotreating with highly active catalysts prepared by incorporating from nickel and a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g and at least about 70% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: November 14, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4861460
    Abstract: Hydrotreating with wide port-containing catalysts prepared by incorporating a metals solution containing an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, and an element selected from the group consisting of nickel, cobalt and mixtures thereof, into a phosphated alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 9 lbs and more than about 20% of their pores greater than 150 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: August 29, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4853108
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating nickel, an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a stabilizing amount of phosphorus into an alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 18 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: August 1, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4839028
    Abstract: Hydrotreating with catalysts prepared by incorporating cobalt and an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, into a phosphated alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, flat plate crush strengths greater than about 18 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: June 13, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4832827
    Abstract: Hydrotreating with catalysts prepared by incorporating a metals solution containing nickel, an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a stabilizing amount of phosphorus into a phosphated alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 18 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: May 23, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4832826
    Abstract: Hydrotreating with catalysts prepared by incorporating nickel, an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a stabilizing amount of phosphorus into a phosphated alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 18 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: May 23, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4832828
    Abstract: Hydrotreating with catalysts prepared by incorporating a metals solution containing cobalt and an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, into a phosphated alumina hydrogen support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, flat plate crush strengths greater than about 16 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: May 23, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4820680
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, and a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g, at least about 20% of the pore volume in pores having diameters greater than about 350 .ANG. and at least about 20% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: April 11, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4820679
    Abstract: This invention relates to a process for preparing highly active catalysts prepared by incorporating from nickel and a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g and at least about 70% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: April 11, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4810687
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a stabilizing amount of phosphorus into an alumina hydrogel. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g, at least about 20% of the pore volume in pores having diameters greater than about 350 .ANG. and at least about 20% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: March 7, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4810684
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, into a phosphated alumina hydrogel. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g, at least about 20% of the pore volume in pores having diameters greater than about 350 .ANG. and at least about 20% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: March 7, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4810686
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incoporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a stabilizing amount of phosphorus into an alumina hydrogel. The final calcined catalysts have surface areas at least about 300 m.sup.2 /g, at least about 20% of the pore volume in pores having diameters greater than about 350 .ANG. and at least about 20% of the pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: March 7, 1989
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4786404
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating a metals solution containing an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, an element selected from the group consisting of nickel, cobalt and mixtures thereof, and a stabilizing amount of phosphorus into an alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 20 lbs and more than about 80% of their pore volume in pores having diameters less than about 50 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: November 22, 1988
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4786403
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating cobalt and an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, into an alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, flat plate crush strengths greater than about 14 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: August 13, 1987
    Date of Patent: November 22, 1988
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4761448
    Abstract: The melting point and the apparent degree of crystallinity of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are stabilized against undue lowering during melt processing by inclusion within the polymer of an aluminum tri-alkoxide or hydrolysis product thereof.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: August 2, 1988
    Assignee: Shell Oil Company
    Inventors: Robert Q. Kluttz, Richard A. Kemp, Robert C. Ryan
  • Patent number: 4754099
    Abstract: This invention relates to a process for disproportionation of hydrocarbon olefins by contacting said hydrocarbon at disproportionation conditions with a catalyst prepared by incorporating a metals solution containing cobalt and an element selected from the group consisting of molybdenum and tungsten into an alumina hydrogel. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g and more than about 40% of their pore volume in pores having diameters less than about 50 .ANG..
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: June 28, 1988
    Assignee: Shell Oil Company
    Inventors: Richard A. Kemp, David M. Hamilton, Jr.
  • Patent number: 4738945
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating nickel, an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, and a stabilizing amount of phosphorus into an alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 18 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: April 19, 1988
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4717707
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating a metals solution containing an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, an element selected from the group consisting of nickel, cobalt and mixtures thereof, and a stabilizing amount of phosphorus into an alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, crush strengths greater than about 20 lbs and more than about 80% of their pore volume in pores having diameters less than about 50 .ANG..
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: January 5, 1988
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp
  • Patent number: 4717705
    Abstract: This invention relates to a process for preparing highly active hydrotreating catalysts prepared by incorporating cobalt and an element selected from the group consisting of molybdenum, tungsten and mixtures thereof, into an alumina hydrogel support. The final calcined catalysts have surface areas greater than about 300 m.sup.2 /g, flat plate crush strengths greater than about 14 lbs and more than about 80% of their pore volume in pores having diameters less than about 70 .ANG..
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: January 5, 1988
    Assignee: Shell Oil Company
    Inventor: Richard A. Kemp