Patents by Inventor Keith W. Morris

Keith W. Morris 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 zonal injection of chemicals into a furnace convective pass to reduce pollutants from flue gases
    Patent number: 7622093
    Abstract: Zonal injection of varying compositions of chemicals, particularly an ammonia-based reagent and hydrocarbon, through injection lances arranged in a grid formation to define planar zones in a furnace convective pass of a furnace. The supply of chemicals is controlled so as to be individually determined for each discrete zone of the grid depending on conditions in that zone.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: November 24, 2009
    Assignee: Doosan Babcock Energy America LLC
    Inventors: Stuart Arrol, Peter Melling, George Anthony Yates, Michael J. Smith, Gerard J. W. C. Hesselmann, Barbara Lefebvre, John Macphail, Keith W. Morris
  • Method for Zonal Injection of Chemicals into a Furnace Convective Pass to Reduce Pollutants from Flue Gases
    Publication number: 20090047199
    Abstract: Zonal injection of varying compositions of chemicals, particularly an ammonia-based reagent and hydrocarbon, through injection lances arranged in a grid formation to define planar zones in a furnace convective pass of a furnace. The supply of chemicals is controlled so as to be individually determined for each discrete zone of the grid depending on conditions in that zone.
    Type: Application
    Filed: October 29, 2008
    Publication date: February 19, 2009
    Inventors: Stuart Arrol, Peter Melling, G.A. Yates, Michael J. Smith, Gerard J.W.C. Hesselmann, Barbara Lefebvre, John Macphail, Keith W. Morris
  • Method for drying and burning viscous aqueous liquors which contain organics
    Patent number: 4363698
    Abstract: Sawdust is mixed with partially concentrated black liquor from pulp manufacture. The sawdust, coated with the solids of the black liquor, is dried by heated air. The sawdust, coated with organic and inorganic black liquor solids, is fed to the hearth of a chemical recovery boiler. Combustion of the char formed on the boiler hearth produces heat which causes additional organic material to pyrolize. The inorganic material combines to form molten smelt. The moisture-laden, heated air from the dryer is introduced into the boiler with the secondary air and the smelt is tapped off into an aqueous solution to form green liquor.
    Type: Grant
    Filed: October 30, 1981
    Date of Patent: December 14, 1982
    Assignee: Combustion Engineering, Inc.
    Inventors: Hugh W. Nelson, George J. Prohazka, Keith W. Morris
  • System for drying and burning viscous aqueous liquors which contain organics
    Patent number: 4347220
    Abstract: Sawdust is mixed with partially concentrated black liquor from pulp manufacture. The sawdust, coated with the solids of the black liquor, is dried by heated air. The sawdust, coated with organic and inorganic black liquor solids, is fed to the hearth of a chemical recovery boiler. Combustion of the char formed on the boiler hearth produces heat which causes additional organic material to pyrolize. The inorganic material combines to form molten smelt. The moisture-laden, heated air from the dryer is introduced into the boiler with the secondary air and the smelt is tapped off into an aqueous solution to form green liquor.
    Type: Grant
    Filed: June 27, 1980
    Date of Patent: August 31, 1982
    Assignee: Combustion Engineering, Inc.
    Inventors: Hugh W. Nelson, George J. Prohazka, Keith W. Morris