Process for cleaning an exhaust gas

US4828806A · kind A · utility

Assignees

• Didier-Werke AG · DE
• Didier Engineering GmbH · DE

Inventors

• Claus Flockenhaus · Essen, DE
• Karl H. Laue · Hattingen, DE
• Theo Sander · Essen, DE
• Erich Hackler · Essen, DE
• Blagoje Levkov · Wiesbaden, DE
• Daniel Grimm · Schlangenbad, DE
• Hartmut Kainer · Wiesbaden, DE
• Hermann Stein · Taunusstein, DE

Key dates

• Filing date: Nov 30, 1987
• Grant date: May 9, 1989
• Expiry date: Nov 30, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23J2219/10
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a process for cleaning a waste gas containing various pollutants, the exhaust gas with the pollutants is introduced directly into a reduction reactor. In the reactor, the pollutants are reduced by ammonia. The catalyst used is iron oxide material or a mixed oxide material of iron oxide and chromium oxide, or a mixture of the mixture material of the mixed oxide material and the iron oxide material.