Patent · US Active

System for treating a platinum contaminated catalytic component

US8986620B2 · kind B2 · utility

0Cited by

17References

17Claims

0Family size

Assignee

Cummins Inc. · US

Inventors

Xu Chen · Columbus, US
Krishna Kamasamudram · Columbus, US
Neil W. Currier · Columbus, US
Aleksey Yezerets · Columbus, US

Key dates

Filing date	May 8, 2014
Grant date	Mar 24, 2015
Priority date	—
Expiry date	May 8, 2034

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J38/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An example method includes determining that a selective catalytic reduction (SCR) component having a zeolite-based catalyst is contaminated with platinum (Pt). The method further includes elevating the temperature of the SCR component to at least 600° C. in response to the determining the catalytic component is contaminated with Pt, and maintaining the elevated temperature of the catalytic component for a predetermined time period thereby restoring reduction activity of the catalyst.

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