Sulfur recovery from H.sub.2 S and SO.sub.2 -containing gases

US4053575A · kind A · utility

Assignee

• The United States of America, as represented by The Secretary of The Interior · US

Inventors

• Larry A. Haas · Burnsville, US
• Sanaa E. Khalafalla · Minneapolis, US

Key dates

• Filing date: Mar 15, 1976
• Grant date: Oct 11, 1977
• Expiry date: Mar 15, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B17/05
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Sulfur is recovered from gases containing H.sub.2 S and SO.sub.2 by absorption of the H.sub.2 S and SO.sub.2 in a glycol absorbent, and reaction of the H.sub.2 S and SO.sub.2 in solution in the absorbent in the presence of a solid catalyst.