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. 22, 2009
Filed:
Apr. 21, 2005
Lawrence J. Muzio, Laguna Niguel, CA (US);
Randall A. Smith, Huntington Beach, CA (US);
Lawrence J. Muzio, Laguna Niguel, CA (US);
Randall A. Smith, Huntington Beach, CA (US);
Fossil Energy Research Corp. (FERCO), Laguna Hills, CA (US);
Abstract
Localized catalyst activity in an SCR unit for controlling emissions from a boiler, power plant, or any facility that generates NO-containing flue gases is monitored by one or more modules that operate on-line without disrupting the normal operation of the facility. Each module is positioned over a designated lateral area of one of the catalyst beds in the SCR unit, and supplies ammonia, urea, or other suitable reductant to the catalyst in the designated area at a rate that produces an excess of the reductant over NOon a molar basis through the designated area. Sampling probes upstream and downstream of the designated area draw samples of the gas stream for NOanalysis, and the catalyst activity is determined from the difference in NOlevels between the two probes.