Process for preventing the plugging of installations with metallic sulfides

US4492676A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Karl Baur · Baierbrunn, DE
• Heinz Karwat · Pullach, DE

Key dates

• Filing date: Feb 16, 1984
• Grant date: Jan 8, 1985
• Expiry date: Feb 16, 2004

Classification

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

Abstract

For preventing the fouling and/or plugging of apparatus with metallic sulfides in the processing and purification of synthesis gases contaminated with metal carbonyls, wherein the synthesis gases are scrubbed with a physical solvent, which solvent is regenerated and reused, an organic phosphite, e.g., trimethyl phosphite, and/or an organic phosphine, e.g., triethyl phosphine or triphenyl phosphine, is added as a complexing agent to the scrubbing media, preferably in between the scrubbing and absorption regenerating steps.