Method for purifying exhaust gas and for regenerating an oxidation catalyst

US9815023B2 · kind B2 · utility

Assignee

• CLARIANT INTERNATIONAL LTD · CH

Inventors

• Margit SCHUSCHKE · Bruckmühl, DE
• Frank Klose · Rosenheim, DE
• Andane Stein · Bad Aibling, DE
• Arno Tissler · Tegernheim, DE
• Olaf Buettner · Kolbermoor, DE
• Grigory Reznikov · Bruckmühl, DE

Key dates

• Filing date: Sep 20, 2013
• Grant date: Nov 14, 2017
• Expiry date: Sep 20, 2033

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2258/0291
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a method for purifying exhaust gas and for regenerating an oxidation catalytic converter, comprising treating the exhaust gas in an oxidation catalytic converter, which comprises a catalytically active material, which contains at least one noble metal and/or at least one base transition metal, wherein the oxidation catalytic converter is operated continuously or at times at a temperature that causes the oxidation of soot particles and/or carbon particles, and/or wherein the oxidation catalytic converter is periodically heated to a temperature that causes the oxidation of soot particles and/or carbon particles.