Patents by Inventor Peter Kleine-Moellhoff

Peter Kleine-Moellhoff 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 the catalytic removal of nitrogen oxides from exhaust gases by means of a reducing agent
    Patent number: 4963332
    Abstract: A method for the removal of nitrogen oxides contained in exhaust gases of an optionally fluctuating composition with a temperature of 0.degree.-600.degree. C. by means of catalytic reduction at a preselected stoichiometric ratio between the concentration of reducing agent and the concentration of nitrogen oxide in which the reducing agent is dosed in a pulsed manner.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: October 16, 1990
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, Bernd Engler, Peter Kleine-Moellhoff, Edgar Koberstein
  • Catalyst for the selective reduction of nitrogen oxides with ammonia
    Patent number: 4916107
    Abstract: A catalyst for the selective reduction with ammonia of nitrogen oxides from an intimate mixture of at least 3 metals in the form of their oxides, namely, titanium, tungsten and at least one of the metals vanadium, iron, niobium, molybdenum, with an atomic ratio of Ti to the other metals of 1:0.001 to 1, wherein there is used as oxide of the titanium a product obtained by flame hydrolysis, which product is impregnated with solutions of the salts of the other metals and is dried and calcined at a high temperature.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: April 10, 1990
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, H. Bernd Engler, Wolfgang Honnen, Peter Kleine-Moellhoff, Edgar Koberstein
  • Apparatus for the containment of monolithic catalysts
    Patent number: 4859428
    Abstract: A device for the support of ceramic catalyst monoliths especially of square cross section as well as for the combination of several of such monoliths into one package. It is formed of an elastic gasket attached on one or both monolith ends and a metal frame attached on the gasket under pressure. The frame has recesses on two adjacent lateral surfaces, and at the two opposite lateral surfaces it has projections which can engage interlockingly into the recesses of adjacent frames.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: August 22, 1989
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, Bernd Engler, Peter Kleine-Moellhoff, Edgar Koberstein
  • Device for the containment of monolithic catalysts
    Patent number: 4814146
    Abstract: A device for the containment of ceramic catalyst monoliths particularly of four cornered cross sectional area as well as for the combination of a plurality thereof into a package. The device includes elastic gaskets arranged on one of the ends of the monoliths and partitions for the form fitting containment of the elements into a cassette.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: March 21, 1989
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, Bernd Engler, Peter Kleine-Moellhoff, Edgar Koberstein
  • Process for the purification of exhaust gases containing oxides of nitrogen and sulfur
    Patent number: 4744967
    Abstract: A process is described for the purification of exhaust gases containing oxides of nitrogen and sulfur obtained from combustion installations and industrial production processes by selective catalytic reduction of the nitric oxides with ammonia, subsequent catalytic oxidation of sulfur dioxide with oxygen and conversion into sulfuric acid of the sulfur trioxide obtained.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: May 17, 1988
    Assignee: Degussa Aktiengesellschaft
    Inventors: Reinhold Brand, Bernd Engler, Peter Kleine-Moellhoff, Edgar Koberstein, Herbert Voelker