Process for treating pressurized gases to remove unwanted components

US4276057A · kind A · utility

Assignee

• Linde GmbH · DE

Inventors

• Hans Becker · Tönisvorst, DE
• Peter Grimm · Seattle, US
• Gerhard Ranke · Pöcking, DE
• Dieter Roth · Schlüchtern, DE

Key dates

• Filing date: Jun 25, 1979
• Grant date: Jun 30, 1981
• Expiry date: Jun 25, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/151
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process for treating a gaseous mixture under pressure to remove unwanted components from a gas, including methane, ethane, hydrogen, nitrogen, such components as C.sub.3, C.sub.4 and C.sub.5 higher hydrocarbons, hydrogen sulphide and carbon dioxide. The gaseous mixture is fractionated under pressure to remove in bottoms product portions of higher hydrocarbons, hydrogen sulphide and carbon dioxide. The overhead product is scrubbed to remove in a suitable solvent a substantial portion of or all of the remaining higher hydrocarbons, hydrogen sulphide and carbon dioxide.