Patents by Inventor William E. Preston

William E. Preston 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).

  • Integrated enhanced oil recovery process
    Patent number: 8479834
    Abstract: An enhanced oil recovery process that is integrated with a synthesis gas generation process, such as gasification or methane reforming, involving combined capture and recycle of carbon dioxide from both processes.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: July 9, 2013
    Assignee: Greatpoint Energy, Inc.
    Inventor: William E. Preston
  • INTEGRATED ENHANCED OIL RECOVERY PROCESS
    Publication number: 20110088896
    Abstract: The present invention relates to an enhanced oil recovery process that is integrated with a synthesis gas generation process, such as gasification or methane reforming, involving combined capture and recycle of carbon dioxide from both processes.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 21, 2011
    Applicant: GREATPOINT ENERGY, INC.
    Inventor: William E. Preston
  • TWO-MODE PROCESS FOR HYDROGEN PRODUCTION
    Publication number: 20110064648
    Abstract: The present invention relates to a 2-mode processes for preparing gaseous products, and in particular a hydrogen product stream, via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen and a hydromethanation catalyst in a first mode, and a partial oxidation of methane in a second mode.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: William E. Preston, Avinash Sirdeshpande
  • INTEGRATED HYDROMETHANATION COMBINED CYCLE PROCESS
    Publication number: 20110062722
    Abstract: The present invention relates to an integrated process for preparing combustible gaseous products via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen, a hydromethanation catalyst and optionally oxygen, and generating electrical power from those combustible gaseous products.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: Avinash Sirdeshpande, William E. Preston
  • INTEGRATED HYDROMETHANATION COMBINED CYCLE PROCESS
    Publication number: 20110062721
    Abstract: The present invention relates to an integrated process for preparing combustible gaseous products via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen, a hydromethanation catalyst and optionally oxygen, and generating electrical power from those combustible gaseous products as well as a hydrogen and/or methane by-product stream.
    Type: Application
    Filed: September 15, 2010
    Publication date: March 17, 2011
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: Avinash Sirdeshpande, William E. Preston
  • PROCESSES FOR HYDROMETHANATION OF A CARBONACEOUS FEEDSTOCK
    Publication number: 20110031439
    Abstract: The present invention relates to processes for preparing gaseous products, and in particular a hydrogen product stream and optionally a methane product stream, via the hydromethanation of carbonaceous feedstocks in the presence of steam, carbon monoxide, hydrogen and a hydromethanation catalyst.
    Type: Application
    Filed: August 6, 2010
    Publication date: February 10, 2011
    Applicant: GREATPOINT ENERGY, INC.
    Inventors: Avinash Sirdeshpande, William E. Preston
  • Multi-element thermocouple
    Patent number: 4590326
    Abstract: In a means for supporting an elongated heavy thermocouple assembly the weight of the assembly is carried by a rigid support at an intermediate point along its length instead of by a long lever arm exerting a substantial torque at the point of attachment to the reactor vessel shell as in the conventional design.
    Type: Grant
    Filed: June 14, 1984
    Date of Patent: May 20, 1986
    Assignee: Texaco Inc.
    Inventors: Paul N. Woldy, John S. Stevenson, William E. Preston