Patent · US Active

Nitrous oxide removal catalysts for exhaust systems

US10260395B2 · kind B2 · utility

4Cited by

4References

25Claims

0Family size

Assignee

BASF SE

Inventors

Yuejin Li · Edison, US
Xiaolai Zheng · Princeton Junction, US
Stanley A. Roth · Yardley, US
Olga Gerlach · Ludwigshafen, DE
Andreas Sundermann · Bensheim, DE

Key dates

Filing date	Jun 30, 2016
Grant date	Apr 16, 2019
Priority date	—
Expiry date	Jun 30, 2036

Classification

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

Abstract

A nitrous oxide (N2O) removal catalyst composite is described, which includes: a N2O removal catalytic material on a carrier, wherein the catalytic material comprises a platinum group metal (PGM) component on a ceria-containing support having a single phase, cubic fluorite crystal structure. The catalytic material is effective to decompose nitrous oxide (N2O) to nitrogen (N2) and oxygen (O2) and/or to reduce N2O to N2 and water (H2O) and/or (CO2) under conditions of an exhaust stream of an internal combustion engine operating under conditions that are stoichiometric or lean with periodic rich transient excursions. Methods of making and using the same are also provided.

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