Patents by Inventor Hans J. S. Winkler

Hans J. S. Winkler 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 H.sub.2 S and CO.sub.2 from gaseous streams
    Patent number: 4091073
    Abstract: A cyclic process for the simultaneous removal of hydrogen sulfide and carbon dioxide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a solution of the Fe (III) chelate of N-(2-hydroxyethyl) ethylene diamine triacetic acid in a CO.sub.2 selective solvent. The hydrogen sulfide is converted to sulfur, the CO.sub.2 is absorbed to produce a purified gas stream, and the Fe (III) chelate is converted to the Fe (II) chelate. The process includes sulfur removal and simultaneous regeneration of the solvent and the Fe (III) chelate.
    Type: Grant
    Filed: August 29, 1975
    Date of Patent: May 23, 1978
    Assignee: Shell Oil Company
    Inventor: Hans J. S. Winkler