Method for regenerating physically acting organic scrubbing agents

US4474740A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Heinz Karwat · Pullach, DE
• Peter Haussinger · Munich, DE

Key dates

• Filing date: Oct 18, 1982
• Grant date: Oct 2, 1984
• Expiry date: Oct 18, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Method and apparatus for regenerating physically acting organic scrubbing agents laden with sulfur dioxide and/or sulfur trioxide and eventually carbon dioxide in the course of a gas purification process. Equipment costs and energy losses are reduced by adding ammonia and, if necessary, water, to the laden scrubbing fluids and then separating the resultant ammonia sulfite and/or ammonia sulfate. Large differences in temperature between the scrubbing steps and the regenerating steps are not needed. A beneficial energy balance results.