Patents by Inventor Richard F. DeVault

Richard F. DeVault 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).

  • Method for controlling compounds and conditions in a wet flue gas desulfurization (WFGD) unit
    Patent number: 9457316
    Abstract: The present invention relates generally to the field of emissions control and, in particular to a new and useful method and/or system by which to control various types of corrosion and/or precipitation issues in at least a portion of a wet flue gas desulfurization (WFGD) scrubber system. In one embodiment, the method and/or system of the present invention relies on the supply of at least one reducing agent to the slurry of a wet flue gas desulfurization scrubber to lower the oxidation reduction potential in the absorber slurry contained within the wet flue gas desulfurization scrubber. In still another embodiment, the method and/or system of the present invention control the oxidation-reduction potential in at least one bleed stream of an absorber slurry, filtrate, and/or solution from a wet flue gas desulfurization scrubber.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 4, 2016
    Assignee: The Babcock & Wilcox Company
    Inventors: Richard F DeVault, Paul J Williams, Sandy P Ulbricht, Shannon R Brown
  • METHOD FOR CONTROLLING COMPOUNDS AND CONDITIONS IN A WET FLUE GAS DESULFURIZATION (WFGD) UNIT
    Publication number: 20140017119
    Abstract: The present invention relates generally to the field of emissions control and, in particular to a new and useful method and/or system by which to control various types of corrosion and/or precipitation issues in at least a portion of a wet flue gas desulfurization (WFGD) scrubber system. In one embodiment, the method and/or system of the present invention relies on the supply of at least one reducing agent to the slurry of a wet flue gas desulfurization scrubber to lower the oxidation reduction potential in the absorber slurry contained within the wet flue gas desulfurization scrubber. In still another embodiment, the method and/or system of the present invention control the oxidation-reduction potential in at least one bleed stream of an absorber slurry, filtrate, and/or solution from a wet flue gas desulfurization scrubber.
    Type: Application
    Filed: March 15, 2013
    Publication date: January 16, 2014
    Inventors: Richard F. DeVault, Paul J. Williams, Sandy P. Ulbricht, Shannon R. Brown