Process for thermal conversion of hydrogen sufide to elemental sulfur

US5439664A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

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

Key dates

• Filing date: Jun 29, 1992
• Grant date: Aug 8, 1995
• Expiry date: Jun 29, 2012

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/129
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

For the thermal conversion of hydrogen sulfide contained in a gaseous stream, the gaseous stream is introduced into a non-catalytic reactor together with sulfur dioxide obtained from a waste gas purification facility arranged downstream of the reactor. If necessary, the sulfur yield can be regulated by feeding additional fuel gas and/or reducing gas and/or process air into the reactor. The thus-produced vapor-phase sulfur is condensed out by cooling and is obtained as a product; the resultant gaseous stream extensively freed of sulfur compounds is discharged and fed into the aforesaid downstream waste gas purification facility.