Process for the simultaneous removal of H.sub.2 S, SO.sub.2 and elemental sulfur from gaseous mixtures

US4530827A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Michael Heisel · Munich, DE
• Gerhard Ranke · Pöcking, DE

Key dates

• Filing date: Oct 26, 1983
• Grant date: Jul 23, 1985
• Expiry date: Oct 26, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10K1/16
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for the simultaneous removal of H.sub.2 S, SO.sub.2 and elemental sulfur from gaseous mixtures, comprises treating the gaseous mixture with a solvent. After the solvent becomes loaded with the components to be removed, it is regenerated and reused. In order to obtain savings in costs and energy, the sulfur is separated from the loaded solvent by lowering the temperature thereof. In this way, chemical regeneration of the scrubbing medium takes place within the cycle eliminating the requirement for outside regenerating apparatus.