Patents by Inventor David M. Dotzauer

David M. Dotzauer 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).

  • Complexation and removal of mercury from flue gas desulfurization systems
    Patent number: 11285439
    Abstract: A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of peracetic acid is disclosed. The peracetic acid is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses peracetic acid in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: March 29, 2022
    Assignee: ECOLAB USA INC.
    Inventors: Nicholas R. Denny, Bruce A. Keiser, David M. Dotzauer, Wayne M. Carlson
  • COMPLEXATION AND REMOVAL OF MERCURY FROM FLUE GAS DESULFURIZATION SYSTEMS
    Publication number: 20190039019
    Abstract: A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of peracetic acid is disclosed. The peracetic acid is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses peracetic acid in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Applicant: ECOLAB USA INC.
    Inventors: Nicholas R. Denny, Bruce A. Keiser, David M. Dotzauer, Wayne M. Carlson
  • Complexation and removal of mercury from flue gas desulfurization systems
    Patent number: 10124290
    Abstract: A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of peracetic acid is disclosed. The peracetic acid is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses peracetic acid in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: November 13, 2018
    Assignee: ECOLAB USA INC.
    Inventors: Nicholas R. Denny, Bruce A. Keiser, David M. Dotzauer, Wayne M. Carlson
  • Complexation and removal of mercury from flue gas desulfurization systems
    Patent number: 9764280
    Abstract: A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of hypobromite is disclosed. The hypobromite is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses hypobromite in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: September 19, 2017
    Assignee: ECOLAB USA INC.
    Inventors: Nicholas R. Denny, Bruce A. Keiser, David M. Dotzauer, Wayne M. Carlson
  • COMPLEXATION AND REMOVAL OF MERCURY FROM FLUE GAS DESULFURIZATION SYSTEMS
    Publication number: 20170050145
    Abstract: A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of hypobromite is disclosed. The hypobromite is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses hypobromite in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Applicant: ECOLAB USA Inc.
    Inventors: Nicholas R. Denny, Bruce A. Keiser, David M. Dotzauer, Wayne M. Carlson
  • COMPLEXATION AND REMOVAL OF MERCURY FROM FLUE GAS DESULFURIZATION SYSTEMS
    Publication number: 20170050146
    Abstract: A method for the reduction and prevention of mercury emissions into the environment from combusted fossil fuels or other off-gases with the use of peracetic acid is disclosed. The peracetic acid is used for the capture of mercury from the resulting flue gases using a flue gas desulfurization system or scrubber. The method uses peracetic acid in conjunction with a scrubber to capture mercury and lower its emission and/or re-emission with stack gases. The method allows the use of coal as a cleaner and environmentally friendlier fuel source as well as capturing mercury from other processing systems.
    Type: Application
    Filed: August 19, 2016
    Publication date: February 23, 2017
    Applicant: ECOLAB USA Inc.
    Inventors: Nicholas R. Denny, Bruce A. Keiser, David M. Dotzauer, Wayne M. Carlson