Patents by Inventor Rinko B. Tjepkema

Rinko B. Tjepkema 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).

  • Process for the removal of hydrogen sulfide from gases
    Patent number: 5152970
    Abstract: The invention relates to a process for the removal of hydrogen sulfide from gases by passing the gases in the presence of oxygen and steam over a catalytic absorption mass which contains inert porous support materials as support and catalytically active metal sulfides and/or metal oxides for the selective oxidation of hydrogen sulfide to elemental sulfur, the sulfur formed being simultaneously deposited on the absorption mass, and regenerating the charged catalytic absorption mass.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: October 6, 1992
    Assignee: VEG-Gasinstituut N.V.
    Inventors: Willem J. J. van der Wal, Rinko B. Tjepkema, Gerard Heijkoop