Patents by Inventor Keh-Hsien Hsiao

Keh-Hsien Hsiao 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).

  • Reducing mode circulating fluid bed combustion
    Patent number: 4579070
    Abstract: A method for combustion of sulfur-containing fuel in a circulating fluid bed combustion system wherein the fuel is burned in a primary combustion zone under reducing conditions and sulfur captured as alkaline sulfide. The reducing gas formed is oxidized to combustion gas which is then separated from solids containing alkaline sulfide. The separated solids are then oxidized and recycled to the primary combustion zone.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: April 1, 1986
    Assignee: The M. W. Kellogg Company
    Inventors: Yung-Yi Lin, Pasupati Sadhukhan, Lowell D. Fraley, Keh-Hsien Hsiao