Process for eliminating hydrogen sulfide from gas mixtures

US4263271A · kind A · utility

Assignee

• Bergwerksverband GmbH · DE

Inventors

• Klaus Henning · Usingen, DE
• Harald Juntgen · Essen, DE
• Jurgen Klein · Essen, DE

Key dates

• Filing date: Aug 20, 1979
• Grant date: Apr 21, 1981
• Expiry date: Aug 20, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B17/0404
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a process for eliminating impurities and undesirable components from gas mixtures by passing the mixture through an activated carbon-containing adsorber. Sulfur compounds including hydrogen sulfide are eliminated by increasing the oxygen contents of the gas mixture which contains at least oxygen and/or sulfur dioxide in addition to the hydrogen sulfide to an extent that a hydrogen sulfide oxygen molar ratio is obtained in the gas mixture which is between about 1:0.45 and 1:0.65. The process may also be carried out with two groups of adsorbers where in the first adsorber the elemental sulfur is eliminated in liquid form and where the remaining minor portion of sulfur in vaporous or mist-like form is then removed in the second group of adsorber or adsorbers by adsorption on the activated coal. The purified gas is then recovered from the adsorber or with two groups of adsorbers from the second group of adsorber or adsorbers and the activated carbon is subjected to periodic regeneration cycles.