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. 06, 2024
Filed:
Oct. 19, 2020
Basf Corporation, Florham Park, NJ (US);
Xinyi Wei, Iselin, NJ (US);
Evan Vincent Miu, Pittsburgh, PA (US);
Xiaoming Xu, Iselin, NJ (US);
Jia Cheng Liu, Shanghai, CN;
Stefan Maurer, Ludwigshafen, DE;
BASF Corporation, Florham Park, NJ (US);
Abstract
The present disclosure provides Low Temperature NO-Absorber (LT-NA) catalyst compositions, catalyst articles, and an emission treatment system for treating an exhaust gas, each including the LT-NA catalyst compositions. Further provided are methods for reducing a NOlevel in an exhaust gas stream using the LT-NA catalyst articles. In particular, the LT-NA catalyst compositions include a first zeolite, a first palladium component, and a plurality of platinum nanoparticles. The LT-NA catalyst compositions exhibit enhanced regeneration efficiency with respect to NOadsorption capacity, even after hydrothermal aging.