Patents by Inventor Tamara Lynn Daugherty

Tamara Lynn Daugherty 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).

  • Steam-hydrocarbon reforming process
    Patent number: 9409773
    Abstract: A steam-hydrocarbon reforming process utilizing a prereformer where a portion of the effluent from the prereformer is conditioned and the C2+ hydrocarbon content in the conditioned effluent measured. The molar flow rate of steam to the prereformer is increased or decreased responsive to measuring the C2+ hydrocarbon content of the conditioned effluent.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: August 9, 2016
    Assignee: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Geoffrey Colling Achilles, Tamara Lynn Daugherty, Michelle Schoonover, Oliver Jacob Smith, IV, Matthew H. MacConnell, Xianming Jimmy Li
  • Steam-Hydrocarbon Reforming Process
    Publication number: 20160130142
    Abstract: A steam-hydrocarbon reforming process utilizing a prereformer where a portion of the effluent from the prereformer is conditioned and the C2+ hydrocarbon content in the conditioned effluent measured. The molar flow rate of steam to the prereformer is increased or decreased responsive to measuring the C2+ hydrocarbon content of the conditioned effluent.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 12, 2016
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Geoffrey Colling Achilles, Tamara Lynn Daugherty, Michelle Schoonover, Oliver Jacob Smith, IV, Matthew H. MacConnell, Xianming Jimmy Li
  • Gas liquefaction process with partial condensation of mixed refrigerant at intermediate temperatures
    Patent number: 6347532
    Abstract: Method of producing liquefied natural gas (LNG) whereby refrigeration for cooling and liquefaction is provided by a mixed refrigerant system precooled by another refrigeration system. At least one liquid stream is derived from the partial condensation and separation of the mixed refrigerant at a temperature higher than the lowest temperature provided by the precooling system when the mixed refrigerant is condensed at a final highest pressure. When the mixed refrigerant is condensed at a pressure lower than the final highest pressure, condensation is effected at a temperatures equal or higher than the lowest temperature provided by the precooling system. The mixed refrigerant liquid is used to provide refrigeration at a temperature lower than that provided by the precooling system.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: February 19, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Rakesh Agrawal, Tamara Lynn Daugherty, Mark Julian Roberts
  • Single mixed refrigerant gas liquefaction process
    Patent number: 6347531
    Abstract: A method of gas liquefaction wherein the refrigeration to cool and liquefy an essentially water-free feed gas is provided by a single recirculating mixed refrigerant cycle in which refrigeration is provided by the vaporization of two mixed refrigerant streams of different compositions at a lower and higher pressure levels respectively. A lower pressure level vaporizing refrigerant cools the feed gas stream in a first cooling zone and a higher pressure level vaporizing refrigerant further cools and condenses the cooled gas in a second cooling zone to provide the final liquid product. The lower pressure level vaporizing refrigerant is provided by one or more liquids obtained by ambient cooling of compressed mixed refrigerant vapor.
    Type: Grant
    Filed: October 12, 1999
    Date of Patent: February 19, 2002
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mark Julian Roberts, Rakesh Agrawal, Tamara Lynn Daugherty