Patents by Inventor Leslie C. White

Leslie C. White 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).

  • Upgrading coal and other carbonaceous fuels using a lean fuel gas stream from a pyrolysis step
    Patent number: 9523039
    Abstract: A method for upgrading coal and other carbonaceous fuels includes subjecting the carbonaceous fuel to a pyrolyzing process, thereby forming upgraded carbonaceous fuel and a flow of lean fuel gases. Auxiliary fuel is combusted in an auxiliary fuel combustor to produce auxiliary fuel combustion gases, and the lean fuel gases are heated with the auxiliary fuel combustion gases. The heated lean fuel gases are combusted in a lean fuel combustor, thereby producing a gas stream of products of combustion, and at least a portion of the gas stream of products of combustion are directed to the pyrolyzer.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: December 20, 2016
    Assignees: Shenhua Group Corporation Limited, National Institute Of Clean-And-Low Carbon Energy
    Inventors: Dennis W. Coolidge, Deane A. Horne, Ronn G. Smith, Leslie C. White
  • UPGRADING COAL AND OTHER CARBONACEOUS FUELS USING A LEAN FUEL GAS STREAM FROM A PYROLYSIS STEP
    Publication number: 20150136579
    Abstract: A method for upgrading coal and other carbonaceous fuels includes subjecting the carbonaceous fuel to a pyrolyzing process, thereby forming upgraded carbonaceous fuel and a flow of lean fuel gases. Auxiliary fuel is combusted in an auxiliary fuel combustor to produce auxiliary fuel combustion gases, and the lean fuel gases are heated with the auxiliary fuel combustion gases. The heated lean fuel gases are combusted in a lean fuel combustor, thereby producing a gas stream of products of combustion, and at least a portion of the gas stream of products of combustion are directed to the pyrolyzer.
    Type: Application
    Filed: January 29, 2015
    Publication date: May 21, 2015
    Applicant: NATIONAL INSTITUTE OF CLEAN-AND-LOW-CARBON ENERGY
    Inventors: Dennis W. Coolidge, Deane A. Horne, Ronn G. Smith, Leslie C. White
  • Upgrading coal and other carbonaceous fuels using a lean fuel gas stream from a pyrolysis step
    Patent number: 9005322
    Abstract: A method and apparatus for upgrading coal and other carbonaceous fuels includes subjecting the carbonaceous fuel to a pyrolyzing process, thereby forming upgraded carbonaceous fuel and a flow of lean fuel gases. Auxiliary fuel is combusted in an auxiliary fuel combustor to produce auxiliary fuel combustion gases, and the lean fuel gases are heated with the auxiliary fuel combustion gases. The heated lean fuel gases are combusted in a lean fuel combustor, thereby producing a gas stream of products of combustion, and at least a portion of the gas stream of products of combustion are directed to the pyrolyzer.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: April 14, 2015
    Assignee: National Institute of Clean and Low-Carbon Energy (NICE)
    Inventors: Dennis W. Coolidge, Deane A. Horne, Ronn G. Smith, Leslie C. White
  • UPGRADING COAL AND OTHER CARBONACEOUS FUELS USING A LEAN FUEL GAS STREAM FROM A PYROLYSIS STEP
    Publication number: 20130014441
    Abstract: A method and apparatus for upgrading coal and other carbonaceous fuels includes subjecting the carbonaceous fuel to a pyrolyzing process, thereby forming upgraded carbonaceous fuel and a flow of lean fuel gases. Auxiliary fuel is combusted in an auxiliary fuel combustor to produce auxiliary fuel combustion gases, and the lean fuel gases are heated with the auxiliary fuel combustion gases. The heated lean fuel gases are combusted in a lean fuel combustor, thereby producing a gas stream of products of combustion, and at least a portion of the gas stream of products of combustion are to directed to the pyrolyzer.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 17, 2013
    Applicant: MR & E, LTD.
    Inventors: Dennis W. Coolidge, Deane A. Horne, Ronn G. Smith, Leslie C. White