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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.:

US 9227176 B1

PDFFull Text
Date of Patent:
Jan. 05, 2016

Filed:

Nov. 27, 2013

Ammonia oxidation catalyst

Applicant:

Johnson Matthey Public Limited Company, London, GB;

Inventors:

Paul Joseph Andersen, Plymouth Meeting, PA (US);

Kevin Doura, Audubon, PA (US);

Assignee:

Johnson Matthey Public Limited Company, London, GB;

Attorney:

Gary D. Mangels

Primary Examiner:

Cam N Nguyen

Int. Cl.
CPC ...
B01D 53/34 (2006.01); B01D 53/56 (2006.01); B01D 53/86 (2006.01); C01C 3/00 (2006.01); B01J 8/00 (2006.01); C01B 21/00 (2006.01); B01J 21/00 (2006.01); B01J 21/04 (2006.01); B01J 23/00 (2006.01); B01J 23/02 (2006.01); B01J 23/08 (2006.01); B01J 23/10 (2006.01); B01J 23/20 (2006.01); B01J 23/40 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01); B01J 23/56 (2006.01); B01J 23/652 (2006.01); B01D 53/58 (2006.01); F01N 3/20 (2006.01); B01J 37/02 (2006.01); B01J 35/00 (2006.01); B01J 21/06 (2006.01); B01J 23/22 (2006.01); B01J 23/30 (2006.01); B01J 35/04 (2006.01); B01D 53/94 (2006.01);
U.S. Cl.
CPC ...
B01J 23/6527 (2013.01); B01D 53/58 (2013.01); B01D 53/9418 (2013.01); B01D 53/9436 (2013.01); B01J 21/063 (2013.01); B01J 23/22 (2013.01); B01J 23/30 (2013.01); B01J 23/40 (2013.01); B01J 23/42 (2013.01); B01J 23/44 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 37/0244 (2013.01); B01J 37/0248 (2013.01); F01N 3/20 (2013.01); B01D 53/9477 (2013.01); B01D 2251/2062 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/2092 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/20723 (2013.01); B01D 2255/20776 (2013.01); B01D 2255/9022 (2013.01); B01D 2255/9032 (2013.01);
Abstract

Provided is a catalyst article for treating an emission gas comprising (a) a noble metal catalyst layer comprising one or more noble metals disposed on a first refractory metal oxide support; and (b) a vanadium catalyst layer comprising vanadium pre-fixed on a second refractory metal oxide support selected from alumina, titania, zirconia, ceria, silica, and mixtures of these, wherein the first catalyst layer is in physical contact with said second catalyst layer. Also provided is a method for making such a catalyst article, a method for treating gas emissions using such an article, and an emission gas treatment system incorporating such an article.

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