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:
Apr. 03, 2018
Filed:
Oct. 21, 2015
Basf Corporation, Florham Park, NJ (US);
Xiaolai Zheng, Princeton Junction, NJ (US);
Chunxin Ji, Hillsborough, NJ (US);
Wen-Mei Xue, Dayton, NJ (US);
Matthew J. Schladt, Princeton Junction, NJ (US);
Xiaoming Wang, Springfield, NJ (US);
Tian Luo, Piscataway, NJ (US);
Michel Deeba, East Brunswick, NJ (US);
Knut Wassermann, Princeton, NJ (US);
BASF Corporation, Florham Park, NJ (US);
Abstract
An emissions treatment system for an exhaust stream of an internal combustion engine including hydrocarbons, carbon monoxide, and nitrogen oxides is provided. The disclosed system can include an exhaust conduit in fluid communication with the internal combustion engine via an exhaust manifold; a first three-way conversion catalyst (TWC-1) located downstream of the internal combustion engine in the exhaust conduit; an SCR-HCT catalyst comprising a selective catalytic reduction catalyst and a hydrocarbon trap downstream of the TWC-1 in the exhaust conduit; and a third catalyst downstream of the SCR-HCT combination in the exhaust conduit, the third catalyst comprising a platinum group metal (PGM) e.g., in an amount effective to oxidize hydrocarbons. Methods of making and using such systems and components thereof are also provided.