Patents by Inventor Thomas Charles Holcombe

Thomas Charles Holcombe 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).

  • Fischer-tropsch reactions using heat transfer tubes with a catalyst layer on the outside surfaces
    Patent number: 8278363
    Abstract: A method of converting synthesis gas into Fischer-Tropsch products comprises: (a) charging synthesis gas to a reactor comprising a shell, having an inlet nozzle near one end for receiving synthesis gas and an outlet nozzle near the opposite end for discharging products, with a plurality of heat transfer tubes inside the shell, having associated therewith means to pass heat transfer fluids through the inside of said heat transfer tubes to remove heat, and whereby the outside surfaces of said tubes have a layer of Fischer-Tropsch catalyst, (b) converting exothermically on said catalyst layer at least a portion of said synthesis gas to produce heat and Fischer-Tropsch products, (c) removing heat from said catalyst layer by passage of a heat transfer fluid through the inside of said tubes, and (d) recovering Fischer-Tropsch products from said reactor.
    Type: Grant
    Filed: March 21, 2010
    Date of Patent: October 2, 2012
    Inventor: Thomas Charles Holcombe
  • Fischer-Tropsch Reactions Using Heat Transfer Tubes with a Catalyst Layer on the Outside Surfaces
    Publication number: 20100240780
    Abstract: A method of converting synthesis gas into Fischer-Tropsch products comprises: (a) charging synthesis gas to a reactor comprising a shell, having an inlet nozzle near one end for receiving synthesis gas and an outlet nozzle near the opposite end for discharging products, with a plurality of heat transfer tubes inside the shell, having associated therewith means to pass heat transfer fluids through the inside of said heat transfer tubes to remove heat, and whereby the outside surfaces of said tubes have a layer of Fischer-Tropsch catalyst, (b) converting exothermically on said catalyst layer at least a portion of said synthesis gas to produce heat and Fischer-Tropsch products, (c) removing heat from said catalyst layer by passage of a heat transfer fluid through the inside of said tubes, and (d) recovering Fischer-Tropsch products from said reactor.
    Type: Application
    Filed: March 21, 2010
    Publication date: September 23, 2010
    Inventor: Thomas Charles Holcombe
  • Photoactivated bleaching process
    Patent number: 4033718
    Abstract: Detergent compositions containing particular species of sulfonated zinc phthalocyanine were found to be unexpectedly effective bleach photoactivators for removing stains from textiles. These species are principally tri- and tetra-sulfonates, especially the latter, with minor amounts of di-sulfonates permitted.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: July 5, 1977
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Charles Holcombe, Robert Howard Schultz