Patents by Inventor Shinn H. Hwang

Shinn H. Hwang 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).

  • Selective removal of olefins from hydrocarbon feed streams
    Patent number: 6977067
    Abstract: Provided is a method of generating a hydrogen-rich reformate from a hydrocarbon feed stream comprising olefins and alkanes (e.g., LPG). An inlet gas stream containing the hydrocarbon feed stream and an oxygen containing gas stream, is preheated to a temperature of from 180 to 300° C. The preheated inlet gas stream is then contacted with a sulfur tolerant partial oxidation catalyst to form a pre-reformed gas stream, which is preferably maintained below about 400° C. The pre-reformed gas stream is then subjected to a reforming process to form the hydrogen-rich reformate.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: December 20, 2005
    Assignee: Engelhard Corporation
    Inventors: Shinn H. Hwang, Robert J. Farrauto
  • Selective removal of olefins from hydrocarbon feed streams
    Publication number: 20040156778
    Abstract: Provided is a method of generating a hydrogen-rich reformate from a hydrocarbon feed stream comprising olefins and alkanes (e.g., LPG). An inlet gas stream containing the hydrocarbon feed stream and an oxygen containing gas stream, is preheated to a temperature of from 180 to 300° C. The preheated inlet gas stream is then contacted with a sulfur tolerant partial oxidation catalyst to form a pre-reformed gas stream, which is preferably maintained below about 400° C. The pre-reformed gas stream is then subjected to a reforming process to form the hydrogen-rich reformate.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 12, 2004
    Applicant: ENGELHARD CORPORATION
    Inventors: Shinn H. Hwang, Robert J. Farrauto