Process of desulfurizing hot gases

US3963825A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

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

Key dates

• Filing date: May 23, 1972
• Grant date: Jun 15, 1976
• Expiry date: May 23, 1992

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/129
• WIPO field: Basic materials chemistry
• 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.