Method for the adsorptive removal of hydrogen sulfide from gas mixtures

US4440551A · kind A · utility

Assignee

• Bergwerksverband GmbH · DE

Inventors

• Klaus Henning · Usingen, DE
• Jurgen Klein · Essen, DE
• Burkhard Harder · Hattingen, DE

Key dates

• Filing date: Aug 3, 1981
• Grant date: Apr 3, 1984
• Expiry date: Aug 3, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2210/0064
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method is disclosed for the adsorptive removal of H.sub.2 S from gas mixtures in C-containing adsorption agents with 1-80 bar pressures and regeneration, employing pressure lowering and/or temperature change and simultaneous rinsing with an at most negligibly absorbable component of the gas mixture. A carbon molecular sieve of fossil and/or bituminous fuel is used, with for pore diameter less than 10 nm a pore volume of 15-25 cm.sup.3 /100 g, and micropore volume in pore diameter range 0.35-10 nm less than 10 cm.sup.3 /100 g. The inner surface of the molecular screen can be freed of surface groups capable of reacting with the H.sub.2 S by aftertreatment with reducing gas.