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. 05, 2013
Filed:
Nov. 03, 2011
Applicants:
Thies Hoffmann, Lake Wylie, SC (US);
Birgit Marrino, Charlotte, NC (US);
Inventors:
Thies Hoffmann, Lake Wylie, SC (US);
Birgit Marrino, Charlotte, NC (US);
Assignee:
Steag Energy Services GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 38/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure relates to methods for treating deactivated SCR catalysts having an increased SO/SOconversion rate as a result of the accumulation of one or more iron compounds. The methods are characterized in that the catalysts are treated with an aqueous solution of an acidic reactive salt or hydrogen fluoride, with the addition of at least one antioxidant.