Patents by Inventor Russell D. Rischard

Russell D. Rischard 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).

  • Temperature moderated claus process
    Patent number: 7172746
    Abstract: Disclosed is a method for treating a feed gas stream rich in hydrogen sulfide by partially combusting the feed gas stream rich in hydrogen sulfide with an oxygen-enriched gas in a Claus reaction furnace to produce to a combustion reaction product stream containing sulfur. The combustion reaction product stream is split into a recycle stream and a treatment stream and the recycle stream directed back into the Claus reaction furnace, without first condensing sulfur out of the recycle stream, while the treatment stream is directed into a condenser to condense sulfur out of the treatment stream.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: February 6, 2007
    Assignee: GAA Engineered Systems, Inc.
    Inventor: Russell D. Rischard