Patent · US Active

Diesel oxidation catalyst

US12390796B2 · kind B2 · utility

0Cited by

7References

8Claims

0Family size

Assignee

BASF MOBILE EMISSIONS CATALYSTS, LLC · US

Inventors

Shiang Sung · New York, US
Patrick William McCanty · Caldwell, US
Stanley A. Roth · Yardley, US
Xiaolai Zheng · Princeton Junction, US
Olga Gerlach · Ludwigshafen, DE
Markus Kögel · Lichtenfels, DE

Key dates

Filing date	Jul 9, 2020
Grant date	Aug 19, 2025
Priority date	—
Expiry date	Nov 16, 2043

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, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOx storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOx and thermally releases the stored NOx at temperature less than 350° C.

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