Patents by Inventor Jeffrey R. Hufton

Jeffrey R. Hufton 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).

  • Publication number: 20240001288
    Abstract: Sulfur-containing compounds are removed from crude CO2 by conversion to elemental sulfur in a Claus process and subsequently by hydrogenation of the Claus tail gas to convert residual sulfur-containing compounds into H2S which, after cooling to knock out water and then compressing, is removed, together with any other sulfur-containing impurities, either by physical separation or by chemical reaction with a solid metal oxide to form solid metal sulfide with subsequent oxidative regeneration to produce purified CO2 and a recycle gas comprising at least one sulfur-containing compound which is recycled to the Claus process. Some H2S in the Claus tail gas may be removed initially by selective and/or non-selective amine absorption(s) in a tail gas treatment unit prior to removal of residual H2S and any other residual sulfur-containing impurities by the physical separation or the chemical reaction steps.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 4, 2024
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Kamlesh Ghodasara, Paul Higginbotham, Jeffrey R. Hufton, Shubhra Jyoti Bhadra, Maulik R. Shelat
  • Publication number: 20230304733
    Abstract: A hydrogen feed stream comprising one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, oxygen, and water, is purified using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The waste gas from regenerating the CTSA may be used to improve the performance of upstream hydrogen processing steps.
    Type: Application
    Filed: February 8, 2022
    Publication date: September 28, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Shubhra Jyoti Bhadra, Jeffrey R. Hufton, Timothy C. Golden, Aaron Raymond Scott, Kamlesh Ghodasara, Maulik R. Shelat, Garret C. Lau
  • Publication number: 20230249119
    Abstract: A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified by first removing oxygen using a copper oxide and/or manganese oxide getter, then using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The oxygen getter prevents an explosive mixture of hydrogen and oxygen from occurring in the CTSA during regeneration.
    Type: Application
    Filed: February 8, 2022
    Publication date: August 10, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: William J. Casteel, Jr., Garret C. Lau, Timothy C. Golden, Shubhra Jyoti Bhadra, Jeffrey R. Hufton
  • Publication number: 20230249971
    Abstract: A hydrogen feed stream comprising oxygen and one or more impurities selected from the group consisting of nitrogen, argon, methane, carbon monoxide, carbon dioxide, and water, is purified using a cryogenic temperature swing adsorption (CTSA) process with high overall recovery of hydrogen. The CTSA is regenerated using an inert gas to prevent an explosive mixture of hydrogen and oxygen from occurring.
    Type: Application
    Filed: February 8, 2022
    Publication date: August 10, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Shubhra Jyoti Bhadra, Jeffrey R. Hufton, Timothy C. Golden, Aaron Raymond Scott, Quan Min Shao, Vishrut Garg