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:
Nov. 15, 2016
Filed:
Jun. 10, 2013
Applicant:
Umicore Ag & Co. KG, Hanau-Wolfgang, DE;
Inventors:
Frank-Walter Schuetze, Haibach, DE;
Marcus Pfeifer, Solingen, DE;
Michael Schiffer, Hanau, DE;
Martin Symalla, Darmstadt, DE;
Christoph Hengst, Butzbach, DE;
Assignee:
UNICORE AG & CO. KG, Hanau-Wolfgang, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/42 (2006.01); B01J 23/52 (2006.01); B01J 33/00 (2006.01); B01D 53/94 (2006.01); B01J 35/00 (2006.01); F01N 3/20 (2006.01); B01J 29/072 (2006.01);
U.S. Cl.
CPC ...
B01D 53/9418 (2013.01); B01D 53/944 (2013.01); B01D 53/9477 (2013.01); B01J 23/42 (2013.01); B01J 23/52 (2013.01); B01J 29/072 (2013.01); B01J 35/0006 (2013.01); F01N 3/2066 (2013.01); B01D 2255/106 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/50 (2013.01); B01D 2258/012 (2013.01); F01N 2510/06 (2013.01); Y02T 10/24 (2013.01);
Abstract
The invention relates to a method for preventing the contamination by platinum of an SCR catalyst in an exhaust-gas treatment system, said system comprising an oxidation catalyst containing platinum on the inflow side of the SCR catalyst. The outflow side of the oxidation catalyst comprises a material zone which removes traces of platinum contained in the exhaust-gas stream.