Patents by Inventor William J. Thomson

William J. Thomson 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 combusting carbonaceous solids containing nitrogen
    Patent number: 4413573
    Abstract: A dual stage combustion system and process for achieving high fuel combustion efficiency and reduced nitric oxide emissions. Combustion is carried out in two stages. A first partial combustion carried out in an oxygen deficient atmosphere followed by a second complete carbon combustion in an oxidizing atmosphere. The second combustion step achieves complete fuel utilization, but generates a nitrogen oxide containing flue gas. The nitrogen oxide containing flue gas is passed to the first combustion step where it is removed by interaction with the partially combusted solids.
    Type: Grant
    Filed: June 21, 1982
    Date of Patent: November 8, 1983
    Assignee: Tosco Corporation
    Inventors: Robert N. Hall, Franklin B. Carlson, William J. Thomson