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:
Feb. 18, 2020
Filed:
Sep. 10, 2014
Applicant:
Johnson Matthey Catalysts (Germany) Gmbh, Redwitz an der Rodach, DE;
Inventor:
Maria Theresia Brandmair, Fahrenzhausen, DE;
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 23/22 (2006.01); B01D 53/86 (2006.01); B01J 21/06 (2006.01); B01J 21/16 (2006.01); B01J 23/28 (2006.01); B01J 23/652 (2006.01); B01J 29/06 (2006.01); B01J 35/04 (2006.01); B01J 37/04 (2006.01); B01J 23/648 (2006.01);
U.S. Cl.
CPC ...
B01J 23/22 (2013.01); B01D 53/8628 (2013.01); B01J 21/063 (2013.01); B01J 21/16 (2013.01); B01J 23/28 (2013.01); B01J 23/6482 (2013.01); B01J 23/6525 (2013.01); B01J 29/06 (2013.01); B01J 35/04 (2013.01); B01J 37/04 (2013.01); B01D 2255/20723 (2013.01);
Abstract
In order to improve the lifetime of an SCR catalyst in the waste gas purification by means of the SCR process of waste gas of a biomass combustion plant, the catalyst comprises a sacrificial component selected from a zeolite and/or a clay mineral, in particular halloysite. During operation, catalyst poisons contained in the waste gas, in particular alkali metals, are absorbed by the sacrificial component so that catalytically active centers of the catalyst are not blocked by the catalyst poisons.