Patent · US Active

Palladium diesel oxidation catalyst

US11248505B2 · kind B2 · utility

7Cited by

23References

30Claims

0Family size

Assignee

BASF SE

Inventors

Shiang Sung · New York, US
Patrick William McCanty · Caldwell, US
Markus Koegel · Brohl, DE
Susanne Stiebels · Adenbüttel, DE

Key dates

Filing date	Jun 13, 2017
Grant date	Feb 15, 2022
Priority date	—
Expiry date	Jun 13, 2037

Classification

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

Abstract

An oxidation catalyst composite for abatement of exhaust gas emissions from a lean burn engine is provided, the catalyst composite including a carrier substrate having a length, an inlet end and an outlet end, and an oxidation catalyst material coated on the carrier substrate. The oxidation catalyst material can include a first layer and a second layer. The first layer can include a first oxygen storage component that includes ceria and is impregnated with a palladium (Pd) component and a second component including one or more of magnesium (Mg), rhodium (Rh), and platinum (Pt). The second layer can include a refractory metal oxide component impregnated with platinum (Pt) and palladium (Pd), wherein the ratio of Pt to Pd is in the range of about 0:10 to about 10:0.

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