Method of and apparatus for the chemisorptive scrubbing of waste gases

US4366132A · kind A · utility

Assignee

• Heinz Holter

Inventors

• Heinz Holter
• Heinz Gresch · Wickede (Ruhr), DE
• Heinrich Igelbuscher
• Heribert Dewert · Gladbeck, DE
• Berthold Dzikowski · Essen, DE
• Hans-Jurgen Twiehaus · Gladbeck, DE

Key dates

• Filing date: Mar 5, 1981
• Grant date: Dec 28, 1982
• Expiry date: Mar 5, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D53/501
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of and an apparatus for the scrubbing of waste gases and especially combustion gases by chemisorption. According to the invention combustion gases which can contain sulfur dioxide are scrubbed with water in the presence of lime and the scrubbing liquid is collected directly beneath the scrubbing column in an oxidation basin which is provided with means for introducing oxygen into the liquid to promote the formation of calcium sulfate crystals. The gases can sweep across the top of this basin and, at the outlet thereof, a coarse droplet separator is provided followed by a fine droplet separator or demister. Spray-water nozzles can be provided between the droplet separators for cleaning them.