Process for preventing the precipitation of elementary sulphur in riser pipes of probes for natural gas

US4543193A · kind A · utility

Inventors

• Siegfried Peter · Erlangen, DE
• Georg Hartel · Freiberg, DE
• Wolfgang Bruckhoff · Wattenscheid, DE

Key dates

• Filing date: Jul 25, 1983
• Grant date: Sep 24, 1985
• Expiry date: Jul 25, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S507/932
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for preventing the precipitation of elementary sulfur in the riser pipes of probes for natural gas including a solvent for sulfur. For the dissolution of the precipitating elementary sulfur an ester of an optionally mono- or poly-unsaturated fatty acid and/or the reaction product of H.sub.2 S with an ester of a mono- or poly-unsaturated fatty acid, optionally in solution, is used. The solvent for sulfur is liquid under the conditions in the mining probe and only slightly soluble in the gas.