Manganese-containing diesel oxidation catalyst

US11896962B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Shiang Sung · New York, US
• Stanley A. Roth · Yardley, US
• Karifala Dumbuya · Hannover, DE
• Susanne Stiebels · Adenbüttel, DE
• Claudia Zabel · Hannover, DE
• Olga Gerlach · Ludwigshafen, DE
• Andreas Sundermann · Bensheim, DE

Key dates

• Filing date: Nov 20, 2020
• Grant date: Feb 13, 2024
• Expiry date: Jul 8, 2042

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, an oxidation catalyst composite including a first washcoat comprising a zeolite, Pt, and first refractory metal oxide support containing manganese, a second washcoat comprising a second refractory metal oxide support, a Pt component and a Pd component, and a third washcoat comprising palladium and a rare earth oxide component is described.