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:
Nov. 27, 2012
Filed:
Oct. 14, 2005
Keshavaraja Alive, South Plainfield, NJ (US);
Anne-laure Baudoux, Champagne au Mont d'Or, FR;
Stephen J. Golden, Santa Barbara, CA (US);
Svetlana Iretskaya, Ventura, CA (US);
Keshavaraja Alive, South Plainfield, NJ (US);
Anne-Laure Baudoux, Champagne au Mont d'Or, FR;
Stephen J. Golden, Santa Barbara, CA (US);
Svetlana Iretskaya, Ventura, CA (US);
Catalytic Solutions, Inc., Ventura, CA (US);
ECS Holdings, Inc., Ventura, CA (US);
Abstract
A catalyzed diesel particulate filter (CDPF) and a method for filtering particulates from diesel engine exhaust are provided, where the catalyzed diesel particulate filter includes a substrate and a catalyst composition, where the catalyst composition contains at least one first component, at least one second component, and at least one third component, where the first component is at least one first component selected from the group consisting of cerium and a lanthanide and mixtures thereof, the at least one second component is selected from the group consisting of cobalt, copper, manganese and mixtures thereof; and the third component comprises strontium, where the first component, the second component, and the third component are in an oxide form after calcination. The catalyst on the catalyzed diesel particulate filter lowers the temperature at which particulates are removed from the CDPF by oxidizing the particulates on the filter. The catalyzed diesel particulate filter may also include a washcoat. Washcoats prepared from colloidal aluminum oxide may have higher surface areas and pore volumes loadings than washcoats containing aluminum oxide prepared from aluminum nitrate.