Single layer high performance catalyst

US6524992B2 · kind B2 · utility

Assignee

• DMC2 Degussa Metal Catalysts Cerdec AG · DE

Inventors

• Lothar Mussmann · Offenbach, DE
• Dieter Lindner · Hanau, DE
• Martin Votsmeier · Bruchköbel, DE
• Egbert Lox · Hanau, DE
• Thomas Kreuzer · Karben, DE

Key dates

• Filing date: Mar 28, 2001
• Grant date: Feb 25, 2003
• Expiry date: Mar 28, 2021

Classification

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

Abstract

A single layer high performance catalyst containing on an inert carrier body a catalytic coating comprising platinum, rhodium and various oxide materials. The catalyst contains a catalytic coating having at least one first support material selected from the group having a first active alumina, a ceria rich ceria/zirconia mixed oxide and a zirconia component, said at least one first support material being catalyzed with a first part of the total platinum amount of the catalyst, and a second support material catalyzed with the second part of the total platinum amount and with rhodium said second support material being a second active alumina.