Patent · US Active

Engine exhaust catalysts containing copper-ceria

US8765625B2 · kind B2 · utility

11Cited by

12References

30Claims

0Family size

Assignee

Shubin, Inc. · US

Inventors

Xianghong Hao · Foster City, US
Juan Cai · Longbeilingcun, CN

Key dates

Filing date	Dec 9, 2010
Grant date	Jul 1, 2014
Priority date	—
Expiry date	Dec 28, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J35/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An emission control catalyst includes copper-ceria to boost low temperature CO oxidation performance, generate exothermic heat during the process, and reduce HC and NOx emissions. As a result, system performance is boosted at equal catalyst cost or maintained at a reduced catalyst cost. In one embodiment, an engine exhaust catalyst includes a first washcoat layer having at least one of a platinum-based catalyst, a palladium-based catalyst, and combinations thereof; and a second washcoat layer having copper-ceria.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.