Process of desulfurizing hot gases

US3931389A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Karl Bratzler
• Alexander Dorges
• Georg Kempf · Schöneck, DE
• Paul Rudolph · Bad Homburg vor der Höhe, DE
• Johann Schlauer · Schmallenberg, DE

Key dates

• Filing date: Oct 23, 1974
• Grant date: Jan 6, 1976
• Expiry date: Oct 23, 1994

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D53/48
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Gases produced by reacting fuels with oxygen containing gases and water vapor under pressure are desulfurized by scrubbing with a concentrated solution of one or more alkali salts of weak inorganic acids at a temperature near the atmospheric-pressure boiling point of the solution in a column while maintaining an exchange ratio of from 0.2 to 2.0 cubic meters of the concentrated solution per standard cubic meter hydrogen sulfide in the gas to be purified.