Patents Examined by Christohper P Jones
  • Gas purification by adsorption of hydrogen sulfide
    Patent number: 7909913
    Abstract: Hydrogen sulfide is removed from a hydrogen rich gas stream using adsorbents having a low loss of carbon dioxide adsorption capacity upon sulfur loading including high purity silica gels, titania or highly cross-linked, non-chemically reactive resins. The adsorbents may be used to adsorb both carbon dioxide and hydrogen sulfide, or may be used as a guard bed upstream of a separate carbon dioxide adsorbent.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: March 22, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jeffrey Raymond Hufton, Timothy Christopher Golden, Robin Joyce Maliszewskyj, Edward Landis Weist, Jr., Robert Quinn, Erin Marie Sorensen