Patents by Inventor Norbert Liermann

Norbert Liermann 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 reduction of the sulfur content in a gaseous stream
    Patent number: 4857297
    Abstract: H.sub.2 S is directly oxidized to elemental sulfur by contacting an H.sub.2 S containing gas stream having a water content less than 10% by volume with air or oxygen over a catalyst containing at least 80 wt % titanium dioxide. Most of the H.sub.2 S in the gas is oxidized to elemental sulfur. The process is especially useful for recovery of additional sulfur from effluent gas from a Claus unit.
    Type: Grant
    Filed: April 9, 1987
    Date of Patent: August 15, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Roland Kettner, Norbert Liermann, Torsten Lubcke
  • Process for the reduction of the sulfur content in a gaseous stream
    Patent number: 4552746
    Abstract: A process for the reduction of sulfur content in gas streams with production of elemental sulfur wherein the sulfur-containing gas is thermally treated, in the presence of oxygen, with a catalyst consisting essentially of titanium oxide.
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: November 12, 1985
    Inventors: Roland Kettner, Norbert Liermann, Torsten Lubcke