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:
Mar. 22, 2011
Filed:
Jul. 22, 2009
Applicants:
Lawrence J. Czarnecki, Knoxville, TN (US);
Mikael Larsson, Mölndal, SE;
Inventors:
Lawrence J. Czarnecki, Knoxville, TN (US);
Mikael Larsson, Mölndal, SE;
Assignee:
ALSTOM Technologies Ltd., , CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/50 (2006.01); B01D 53/56 (2006.01); B01D 53/74 (2006.01); B01D 53/75 (2006.01); B01D 51/10 (2006.01); B01J 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of protecting a NOx reducing catalystfrom fouling, where the NOx reducing catalystis downstream of a circulating fluidized bed (CFB) boilerand upstream of a particulate removal device. The method includes introducing a SOremoving reagentin a calcium to sulfur molar ratio greater than that required for SOremoval from a flue gasgenerated by a CFB, thereby preventing SOformation and fouling of the NOx reducing catalyst