Method for using a catalyst to purify exhaust gases from a diesel engine

US5514354A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Rainer Domesle · Alzenau, DE
• Bernd Engler · Hanau, DE
• Edgar Koberstein · Alzenau, DE
• Herbert Voelker · Hanau, DE

Key dates

• Filing date: Aug 11, 1992
• Grant date: May 7, 1996
• Expiry date: Aug 11, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02A50/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An open-cell, monolithic catalyst for the purification of diesel-engine exhaust gas with a coating of finely divided inorganic oxides containing vanadium and platinum group metal as active components. The active components of the oxidic coating are added as water-soluble precursors which are then converted by means of tempering, preferably in an atmosphere of hydrogen, into the active component.