Patent · US Active

Exhaust gas treatment system including a multifunctional catalyst

US12305558B2 · kind B2 · utility

0Cited by

0References

15Claims

0Family size

Assignee

BASF MOBILE EMISSIONS CATALYSTS, LLC · US

Inventors

Robert Dorner · Hannover, DE
Tobias Paul · Schopfheim, DE
Edgar Viktor Huennekes · Wunstorf, DE
Jan Martin Becker · Hannover, DE
Kevin BEARD · Hannover, DE

Key dates

Filing date	Dec 8, 2021
Grant date	May 20, 2025
Priority date	—
Expiry date	Dec 8, 2041

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2510/0684
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to an exhaust gas treatment system for treating an exhaust gas stream exiting a diesel engine, wherein said exhaust gas treatment system comprises a first catalyst having an inlet end and an outlet end and comprising a coating disposed on a substrate, wherein the coating comprises palladium supported on an oxidic material comprising zirconium and further comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron; a second catalyst having an inlet end and an outlet end and comprising a coating disposed on a substrate, wherein the coating comprises one or more of a vanadium oxide and a zeolitic material comprising one or more of copper and iron, wherein at most 0.0001 weight-% of the coating of the second catalyst consists of platinum group metal.

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