Device and method for decomposing harmful substances contained in flue gas

US6517786B1 · kind B1 · utility

Assignee

• Institute fuer Niedertemperatur-Plasmaphysik E. V. An der Ernst-Moritz-Arndt-Universitaet Greifswald · DE

Inventors

• Walter E. Best · Indianapolis, US
• Johannes Peter Franziskus Conrads · Emmelshausen, DE
• Wolf-Dieter Franke · Greifswald, DE
• Siegfried Mueller · Großingersheim, DE
• Wolfgang Reich · Greifswald, DE

Key dates

• Filing date: Jan 10, 2000
• Grant date: Feb 11, 2003
• Expiry date: Jan 10, 2020

Classification

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

Abstract

A decomposition device and a method for decomposing gases with soot or other harmful substances has a processing station using dielectrically hindered discharge. The device has at least two electrodes, one of which is a porous and gas permeable electrode. In order to decompose the gas containing harmful substances, the gas is first introduced into a processing station in which the gas is subjected to plasma processing involving an alternate voltage supply, and from which the gas is let out. The gas is introduced through one end of the processing station formed by the two electrodes.