Engelhard Corporation

Basf Catalysts LLC

Ramesh M Kakwani

Joseph Allan Patchett

Kenneth Edwin Voss

Karl Richard Grimston

Kenneth C Voss

Joseph Charles Dettling

Stanley Allen Roth

Shiang Sung

Gary Wayne Rice

Kevin A Hallstrom

Yiu Kwan Lui

Alexander Gorel

A self-cleaning diesel exhaust particulate filter system is disclosed wherein burn-off of collected particulate matter is accomplished at normal exhaust gas temperatures, the filter system being provided with a catalyst mixture of a co-formed ceria-zirconia composite and, optionally, a base metal oxide, the presence of which allows regeneration of filters at temperatures that are readily achieved in diesel exhaust systems, including operating conditions that are at low load where lower exhaust temperatures exist.

Diesel exhaust article and catalyst compositions therefor

A diesel engine aftertreatment exhaust system uses catalyzed soot filters for particulate matter reduction and urea SCR catalysts for NOx reduction on diesel engines in a combined system to lower particulate matter and NOx at the same time. With this integral emission control system, diesel engines are able to meet ultra low emission standards.

Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines

The present invention relates to a method and article for treating a diesel engine exhaust stream. The stream is contacted with an upstream catalytic composition having a cerium component and/or a zeolite component to reduce the quantity and amount of the particulate matter in the exhaust stream. The stream passes from the upstream catalytic composition to a particulate filter located downstream from the upstream catalytic composition.

Diesel oxidation catalyst

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Whitehouse Station, NJ, United States of America

Ramesh M Kakwani