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:
Dec. 07, 2010
Filed:
May. 21, 2004
William Steven Lanier, Durham, NC (US);
Frederic Francis Ahlgren, Highland Heights, OH (US);
Theodore Paul Kircher, Richmond Heights, OH (US);
William Steven Lanier, Durham, NC (US);
Frederic Francis Ahlgren, Highland Heights, OH (US);
Theodore Paul Kircher, Richmond Heights, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for monitoring and/or controlling performance of a selective catalytic reduction (SCR) emission control system includes injecting a quantity of a pollution neutralizing gas into a combustion gas stream containing a pollutant gas. The method also includes passing the stream over a catalyst bed to facilitate a reaction of the pollution neutralizing gas with the pollutant gas to produce an effluent and measuring a ratio of the pollution neutralizing gas to the pollutant gas in the effluent.