Patents by Inventor Alan Bruce Briston

Alan Bruce Briston 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).

  • Production of ammonia synthesis gas
    Patent number: 7431865
    Abstract: Ammonia synthesis gas production having a shift reaction stage employing a copper-based catalyst wherein the air supplied to the process is passed through an absorber that removes sulfur and/or halide contaminants, is described. The absorber has a support carrying an absorbent for sulfur compounds and/or absorbent for halide compounds. The removal of the contaminants improves the lifetime e.g. copper-zinc low temperature shift catalysts.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: October 7, 2008
    Assignee: Johnson Matthey PLC
    Inventors: Andrew Mark Ward, Alan Bruce Briston
  • Catalyst or sorbent beds
    Patent number: 7323152
    Abstract: A fixed bed containing a particulate catalyst or sorbent material (10) subject to operation at high temperature having a shaped boundary member (16) inclined to the direction of fluid flow through the bed that maintains the depth of said catalyst or sorbent at the boundary of the bed through a series of thermal expansion-thermal contraction cycles is described. By maintaining bed depth, the shaped boundary member (16) can prevent bypass of, e.g. ammonia through a bed of particulate ammonia oxidation catalyst.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: January 29, 2008
    Assignee: Johnson Matthey PLC
    Inventors: Sean Alexander Axon, Andrew Mark Ward, Alan Bruce Briston
  • Production of ammonia synthesis gas
    Publication number: 20040253176
    Abstract: Ammonia synthesis gas production having a shift reaction stage employing a copper-based catalyst, wherein the air supplied to the process is passed through an absorber that removes sulphur and/or halide contaminants, is described. The absorber comprises a support carrying an absorbent for sulphur compounds and/or an absorbent for halide compounds. The removal of said contaminants improves the lifetime of. e.g. copper-zinc low temperature shift catalysts.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 16, 2004
    Inventors: Andrew Mark Ward, Alan Bruce Briston
  • Catalyst or sorbent beds
    Publication number: 20040234433
    Abstract: A fixed bed containing a particulate catalyst or sorbent material (10) subject to operation at high temperature having a shaped boundary member (16) inclined to the direction of fluid flow through the bed that maintains the depth of said catalyst or sorbent at the boundary of the bed through a series of thermal expansion-thermal contraction cycles is described. By maintaining bed depth, the shaped boundary member (16) can prevent bypass of, e.g. ammonia through a bed of particulate ammonia oxidation catalyst.
    Type: Application
    Filed: June 29, 2004
    Publication date: November 25, 2004
    Inventors: Sean Alexander Axon, Andrew Mark Ward, Alan Bruce Briston