Patents by Inventor Klaus-Dieter Weber

Klaus-Dieter Weber 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 of regulating the amount of reducing agent added during catalytic reduction of NO.sub.x contained in flue gases
    Patent number: 4681746
    Abstract: A method of regulating the amount of reducing agent added, especially NH.sub.3 in the case of the catalytic reduction of NO.sub.x of flue gases which originate from a combustion installation which is fired with fossil fuels. The adjustment value for the quantity to be added is determined in response to a prescribed reducing agent/NO.sub.x stoichiometry factor from the quantity of combustion air supplied to the combustion installation or from the exiting quantity of flue gas, and from the NO.sub.x concentration downstream ahead of the catalyzer. Regulation is effected by influencing the stoichiometry factor. The NO.sub.x concentration downstream after the catalyzer is returned to the regulation process as the primary correction value, and the reducing agent concentration downstream after the catalyzer, and the flue gas temperature ahead of the catalyzer, are returned to the regulation process as the secondary correction values.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: July 21, 1987
    Assignee: L. & C. Steinmuller GmbH
    Inventors: Stanislaw Michalak, Klaus-Dieter Weber, Jurgen Meier
  • Method of regulating the amount of reducing agent added during catalytic reduction of NO.sub.x contained in flue gases
    Patent number: 4565679
    Abstract: A method of regulating the amount of reducing agent added, especially NH.sub.3 in the case of the catalytic reduction of NO.sub.x of flue gases which originate from a combustion installation which is fired with fossil fuels. The adjustment value for the quantity to be added is determined in response to a prescribed reducing agent/NO.sub.x stoichiometry factor from the quantity of combustion air supplied to the combustion installation or from the exiting quantity of flue gas, and from the NO.sub.x concentration downstream ahead of the catalyzer. Regulation is effected by influencing the stoichiometry factor. The NO.sub.x concentration downstream after the catalyzer is returned to the regulation process as the primary correction value, and the reducing agent concentration downstream after the catalyzer, and the flue gas temperature ahead of the catalyzer, are returned to the regulation process as the secondary correction values.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: January 21, 1986
    Assignee: L. & C. Steinmuller GmbH
    Inventors: Stanislaw Michalak, Klaus-Dieter Weber, Jurgen Meier