Patent · US Expired

Diesel oxidation catalyst

US7078004B2 · kind B2 · utility

51Cited by

29References

24Claims

0Family size

Assignee

Engelhard Corporation · US

Inventors

Kenneth E. Voss · Iselin, US
Joseph C. Dettling · Howell, US
Stanley A. Roth · Yardley, US
Ramesh Kakwani · Whitehouse Station, US
Yiu Lui · Sayreville, US
Alexander Gorel · Fryeburg, US
Gary W. Rice · Florence, US

Key dates

Filing date	Jan 10, 2003
Grant date	Jul 18, 2006
Priority date	—
Expiry date	Mar 13, 2023

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a method and article for treating a diesel engine exhaust stream. The stream is contacted with an upstream catalytic composition having a cerium component and/or a zeolite component to reduce the quantity and amount of the particulate matter in the exhaust stream. The stream passes from the upstream catalytic composition to a particulate filter located downstream from the upstream catalytic composition.

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