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:
Jul. 16, 2013
Filed:
Dec. 09, 2008
James Joshua Driscoll, Dunlop, IL (US);
Michael A. Flinn, East Peoria, IL (US);
James Joshua Driscoll, Dunlop, IL (US);
Michael A. Flinn, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
Systems and methods for treating exhaust gases are described. The described systems and/or methods for treating exhaust gases could be used with any power plant, engine, hydrocarbon burning system, other NOproducing system, or combinations thereof. A method () for treating exhaust gases is provided. The method () may include converting () ammonia () and NOto nitrogen and water using an ammonia-SCR catalyst () after converting () ammonia to NOusing an ammonia-to-NOcatalyst () located upstream of at least a portion of the ammonia-SCR catalyst (). The described systems and/or methods create NOso excess ammonia added to the exhaust stream may be used to convert NOto nitrogen and water.