Patents by Inventor Richard Marshall Himes

Richard Marshall Himes 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).

  • METHODS FOR REDUCING NOx IN SCR FOSSIL-FUEL FIRED BOILERS
    Publication number: 20120282564
    Abstract: A method for reducing NOx in a selective catalytic reduction (SCR) fossil-fuel fired boiler includes the steps of providing a first set of optical measurement devices adapted to measure NOx and NH3 concentrations contained in an exhaust stream from a fossil-fuel fired boiler, performing measurements of NOx and NH3 at an SCR inlet using the first set of optical measurement devices, and determining an NH3/NOx molar ratio using the measurements taken by the first set of optical measurement devices. The method further includes the steps of using the determined NH3/NOx molar ratio in comparison against a user specified NH3/NOx molar ratio set-point, and controlling an NH3 control valve to match ammonia flow to changes in boiler NOx emissions such that the molar ratio set-point is maintained.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 8, 2012
    Applicant: ELECTRIC POWER RESEARCH INSTITUTE, INC.
    Inventor: Richard Marshall Himes