The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 26, 1988
Filed:
Aug. 27, 1986
Dietrich Wagener, Essen, DE;
Karl H Laue, Hattingen, DE;
Egmar Wunderlich, Mulheim, DE;
Theo Sander, Essen, DE;
Claus Flockenhaus, Essen, DE;
Erich Hackler, Essen, DE;
Blagoje Levkov, Wiesbaden, DE;
Daniel Grimm, Schlangenbad-Barstadt, DE;
Hartmut Kainer, Wiesbaden, DE;
Hermann Stein, Bad Durkheim, DE;
Didier-Werke AG, Wiesbaden, DE;
Didier Engineering GmbH, Essen, DE;
Abstract
A structure made from catalyst for use in the separation of nitrogen oxides from combustion exhaust gases which contain dust. The catalytic structure has plates with spaces therebetween to carry a flow of the exhaust gas therethrough. The catalyst is constructed of individual ceramic plates. The abrasion or wear resistance of the plates is chosen such that the dust in the exhaust gases flowing through the spaces abrades the plate surface at a rate which is at least equivalent to the deactivation of the catalyst surface by action of the nitrogen oxides, which constantly provides a fresh catalyst surface for reaction with the nitrogen oxides. The movement of the exhaust gas through the catalytic structure carries the dust and abraded material along with it and out of the structure.