Patent · US Active

Oxidation catalyst for a diesel engine exhaust

US10357743B2 · kind B2 · utility

0Cited by

6References

26Claims

0Family size

Assignee

Johnson Matthey Public Limited Company · GB

Inventors

Andrew Francis Chiffey · Ware, GB
Oliver Cooper · Royston, GB
Christopher Daly · New York, US
Mark Robert Feaviour · Reading, GB
Steven Merrick · Los Angeles, US
Francois Moreau · Royston, GB
Matthew O'Brien · Royston, GB
David Thompsett · Reading, GB

Key dates

Filing date	Oct 14, 2016
Grant date	Jul 23, 2019
Priority date	—
Expiry date	Oct 14, 2036

Classification

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

Abstract

An oxidation catalyst is described for treating an exhaust gas produced by a diesel engine comprising a catalytic region and a substrate, wherein the catalytic region comprises a catalytic material comprising: bismuth (Bi), antimony (Sb) or an oxide thereof; a platinum group metal (PGM) selected from the group consisting of (i) platinum (Pt), (ii) palladium (Pd) and (iii) platinum (Pt) and palladium (Pd); and a support material, which is a refractory oxide; wherein the platinum group metal (PGM) is supported on the support material; and wherein the bismuth (Bi), antimony (Sb) or an oxide thereof is supported on the support material and/or the refractory oxide comprises the bismuth, antimony or an oxide thereof.

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