Patent · US Active

Zoned catalyst for diesel applications

US9333490B2 · kind B2 · utility

20Cited by

31References

21Claims

0Family size

Assignee

BASF SE

Inventors

M. Shahjahan Kazi · Kendall Park, US
Fabien A. Rioult · Garwood, US
Stanley A. Roth · Yardley, US
Kenneth E. Voss · Iselin, US

Key dates

Filing date	Mar 12, 2014
Grant date	May 10, 2016
Priority date	—
Expiry date	Mar 12, 2034

Classification

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

Abstract

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a zoned diesel oxidation catalyst with a first washcoat zone with a Pt/Pd ratio that is less than 3:1 and a PGM loading at least twice that of a second washcoat zone.

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