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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.:

US 8087235 B1

PDFFull Text
Expired
Date of Patent:
Jan. 03, 2012

Filed:

Apr. 14, 2005

Process for the removal of harmful substances from exhaust gases of combustion engines and catalyst for carrying out said process

Applicants:

Wolfgang Strehlau, Dossenheim, DE;

Olga Gerlach, Ludwigshafen, DE;

Jürgen Maier, Mannheim, DE;

Inventors:

Wolfgang Strehlau, Dossenheim, DE;

Olga Gerlach, Ludwigshafen, DE;

Jürgen Maier, Mannheim, DE;

Assignee:

hte Aktiengesellschaft the high throughput experimentation company, , DE;

Attorney:

Jones Day

Primary Examiner:

Thomas Denion

Assistant Examiner:

Michael Carton

Int. Cl.
CPC ...
F01N 3/00 (2006.01); B01D 47/00 (2006.01); B01D 53/34 (2006.01); B01D 53/56 (2006.01); B01D 53/94 (2006.01); B01D 50/00 (2006.01); B01J 8/00 (2006.01); B01J 19/00 (2006.01); C01B 23/00 (2006.01); C01B 25/00 (2006.01); C01B 31/00 (2006.01); C01B 33/00 (2006.01); C01B 35/00 (2006.01); C01G 28/00 (2006.01); C01G 30/00 (2006.01); B03C 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to an integrated system for the treatment of exhaust gases, which preferably consists of at least one NO-storing component, at least one in situ ammonia-generating component, at least one ammonia-storing component and at least one ammonia (NH)-SCR-component, as well as to a process for the treatment of exhaust gas comprising at least the steps (i) storing of NOunder lean exhaust gas conditions in at least one NO-storing component; (ii) in situ conversion of the stored NOto ammonia (NH) under rich exhaust gas conditions; (iii) storing of the ammonia (NH) in at least one NH-storing component under rich exhaust gas conditions as well as the (iv) reaction of NHwith NOunder lean exhaust gas conditions. Thereby, the partial steps 'storing of NO' and 'conversion of NHwith NO' are carried out at least partially and/or temporarily simultaneously and/or parallelly. Furthermore, preferred catalysts are disclosed for carrying out the process.

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Strehlau, Wolfgang. (2012). Process for the removal of harmful substances from exhaust gases of combustion engines and catalyst for carrying out said process (U.S. Patent No. 8087235). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8087235

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