Process and reactor for catalytic reaction of H.sub.2 S and SO.sub.2 to sulfur

US4957724A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Freimut Marold · Dorsten, DE
• Michael Heisel · Munich, DE

Key dates

• Filing date: Mar 21, 1988
• Grant date: Sep 18, 1990
• Expiry date: Mar 21, 2008

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process and apparatus for conducting a catalytic reaction of H.sub.2 S and SO.sub.2 to elementary sulfur provides for at least two catalyst beds and that at least one part of one of the catalyst beds is operated during the reaction at below the sulfur dew point, preferably below the solids condensation point, and above the water dew point. The adsorbed and deposited sulfur is removed by heating and evaporation. At least two serially connected and interchangeable reactors are employed in preferably a single flow direction in one cycle, and the flow direction of the gas stream is reversed in a second cycle by means of a multiway fitting.