Nitrous oxide removal catalysts for exhaust systems

US10634030B2 · kind B2 · utility

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: Dec 8, 2015
• Grant date: Apr 28, 2020
• Expiry date: Dec 8, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/10
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A nitrous oxide (N2O) removal catalyst composite is provided, comprising a N2O removal catalytic material on a substrate, the catalytic material comprising a rhodium (Rh) component supported on a ceria-based support, wherein the catalyst composite has a H2-consumption peak of about 100° C. or less as measured by hydrogen temperature-programmed reduction (H2-TPR). Methods of making and using the same are also provided.