Patent · US Active

Method for treating a platinum contaminated catalytic component

US8822364B2 · kind B2 · utility

3Cited by

16References

26Claims

0Family size

Assignee

Cummins Inc. · US

Inventors

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

Key dates

Filing date	Apr 19, 2012
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Aug 18, 2032

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.