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. 03, 2009
Filed:
Aug. 09, 2004
Stanislaw Edmund Golunski, Reading, GB;
Valerie Marie Renee Houel, Reading, GB;
Andrea Hawkings, Reading, GB;
David William James, Reading, GB;
Stephen David Pollington, Tyne & Wear, GB;
Stephen Poulston, Reading, GB;
Raj Rao Rajaram, Slough, GB;
Stanislaw Edmund Golunski, Reading, GB;
Valerie Marie Renee Houel, Reading, GB;
Andrea Hawkings, Reading, GB;
David William James, Reading, GB;
Stephen David Pollington, Tyne & Wear, GB;
Stephen Poulston, Reading, GB;
Raj Rao Rajaram, Slough, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A catalyst structure for treating exhaust gas from a lean burn internal combustion engine comprises a substrate monolith comprising a lean NOcatalyst (LNC) composition associated with at least one partial oxidation catalyst (POC), wherein the LNC composition is selected from the group consisting of: (a) silver or a silver compound supported on alumina; and (b) at least one metal selected from the group consisting of copper (Cu), iron (Fe), cobalt (Co) and cerium (Ce) supported on at least one zeolite, and wherein the at least one POC is selected from the group consisting of: (i) a bulk oxide, a bulk composite oxide or a bulk mixed oxide comprising at least one metal selected from the group consisting of manganese (Mn), iron (Fe), cerium (Ce) and praseodymium (Pr); and (ii) at least one of rhodium (Rh) and palladium (Pd) disposed on at least one inorganic oxide support.