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.

Date of Patent:
Aug. 02, 2011

Filed:

Nov. 05, 2009
Applicants:

Anatoly Sobolevskiy, Orlando, FL (US);

Joseph A. Rossin, Columbus, OH (US);

Michael J. Knapke, Columbus, OH (US);

Inventors:

Anatoly Sobolevskiy, Orlando, FL (US);

Joseph A. Rossin, Columbus, OH (US);

Michael J. Knapke, Columbus, OH (US);

Assignee:

Siemens Energy, Inc., Orlando, FL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 27/053 (2006.01); B01J 27/045 (2006.01); B01J 23/42 (2006.01); B01J 23/44 (2006.01);
U.S. Cl.
CPC ...
Abstract

Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and hydrogen over the catalyst system and increasing a temperature of the catalyst system to a temperature of at least 180° C. at a heating rate of from 1-20°/min. Use of activation processes described herein leads to a catalyst system with superior NOx reduction capabilities.


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