Method for the removal of acidic gases such as carbon dioxide from gaseous mixtures

US4436707A · kind A · utility

Assignee

• Linde GmbH · DE

Inventor

• Heinz Karwat · Pullach, DE

Key dates

• Filing date: Jun 30, 1983
• Grant date: Mar 13, 1984
• Expiry date: Jun 30, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Methods for removing acidic gases from gaseous mixtures, such as hydrocarbon containing gaseous mixtures, are disclosed. The method includes washing the gaseous mixtures with a methanol wash stream containing more than about 0.5 weight percent ammonia therein, so as to remove at least a portion of the acidic gases from the gaseous mixtures and to produce a laden methanol stream containing said acidic gases therein, regenerating said laden methanol stream by removing a portion of said acidic gases therefrom, so as to regenerate said wash stream, and recycling the regenerated wash stream.