Amine-containing absorption medium, process and apparatus for absorption of acidic gases from gas mixtures

US8784537B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Matthias Seiler · Soest, DE
• Rolf Schneider · Burgstetten, DE
• Jörn Rolker · Alzenau, DE
• Daniel Dembkowski · Essen, DE
• Manfred Neumann · Marl, DE
• Daniel Witthaut · Langenselbold, DE
• Michael Keup · Essen, DE
• Volker Brehme · Nottuln, DE
• Muhammad Irfan · Niederrodenbach, DE

Key dates

• Filing date: Nov 10, 2011
• Grant date: Jul 22, 2014
• Expiry date: Nov 10, 2031

Classification

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

Abstract

CO2 is absorbed from a gas mixture by contacting the gas mixture with an absorption medium which comprises at least water as solvent and at least one amine of formula (I)where R1 is an aliphatic radical, having 2 to 6 carbon atoms and at least one amino group, and R2 is hydrogen, a C1-4 alkyl radical or a radical R1.