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.

Date of Patent:
Jan. 18, 2022

Filed:

Jan. 30, 2017
Applicant:

Umicore Ag & Co. KG, Hanau-Wolfgang, DE;

Inventors:
Assignee:

Umicore AG & Co. KG, Hanau-Wolfgang, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/94 (2006.01); B01J 29/76 (2006.01); B01D 53/86 (2006.01); B01J 35/00 (2006.01); B01J 35/04 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01); B01J 37/06 (2006.01); B01J 37/10 (2006.01); B01J 37/30 (2006.01); B01J 29/84 (2006.01); B01J 29/83 (2006.01); B01J 29/85 (2006.01);
U.S. Cl.
CPC ...
B01J 29/763 (2013.01); B01D 53/8628 (2013.01); B01D 53/9418 (2013.01); B01D 53/9427 (2013.01); B01J 29/76 (2013.01); B01J 29/83 (2013.01); B01J 29/84 (2013.01); B01J 29/85 (2013.01); B01J 35/0006 (2013.01); B01J 35/04 (2013.01); B01J 37/009 (2013.01); B01J 37/0244 (2013.01); B01J 37/0246 (2013.01); B01J 37/04 (2013.01); B01J 37/06 (2013.01); B01J 37/10 (2013.01); B01J 37/30 (2013.01); B01D 2251/2062 (2013.01); B01D 2255/20738 (2013.01); B01D 2255/50 (2013.01); B01D 2255/9155 (2013.01); B01D 2257/402 (2013.01); B01D 2257/404 (2013.01); B01D 2258/02 (2013.01); B01J 2229/186 (2013.01); Y02C 20/10 (2013.01);
Abstract

A method for the removal of nitrous oxide from off gas by direct decomposition or by selective catalytic reduction in presence of a reducing agent, comprising the steps of contacting the gas directly or together with the reducing agent or a precursor thereof with a catalyst comprising an Fe-AEI zeolite material essentially free of alkali metal ions (Alk) and having the following molar compositions:SiOAlOFe:Alk


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