Evonik Degussa Gmbh

Jörn Rolker

Rolf Schneider

Matthias Seiler

Muhammad Irfan

Manfred Neumann

Michael Keup

Axel Kobus

Hermann Winkler

Volker Brehme

Wolfgang Benesch

Daniel Witthaut

Helmut Brüggemann

Bernd Glöckler

Daniel Dembkowski

Thomas Riethmann

Jens Reich

Ralf Meier

Benjamin Willy

Udo Knippenberg

Stefanie Rinker

Jochen Niemeyer

Alexander Schraven

Hari Prasad Mangalapally

Thibaut Lenormant

The invention relates to a process for dehumidifying a moist gas mixture and to the absorption medium used in the process. The invention further relates to an apparatus for dehumidifying a moist gas mixture and to the use of said apparatus in the process according to the invention.

Process for dehumidifying moist gas mixtures

In a method of absorbing COfrom a gas mixture the use of an absorption medium comprising water and at least one amine of formula (I) 

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The invention is directed to a method for separating acid gases from a gas mixture in which the gas mixture is contacted with an absorption medium which comprises water and at least one amine and has a phase-separation temperature in the range from 0 to 130&#xb0; C. In addition, the invention is directed to a device which can be used for carrying out this method.

Method and device for separating acid gases from a gas mixture

COis 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 Ris an aliphatic radical, having 2 to 6 carbon atoms and at least one amino group, and Ris hydrogen, a Calkyl radical or a radical R.

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

COis absorbed from a gas mixture by bringing the gas mixture into contact with an absorbent that comprises water and at least one amine of the formula (I), wherein Rand R, independently of each other, are hydrogen or an alkyl group. According to the invention, absorption media comprise sulfolane or an ionic liquid in addition to water and an amine of the formula (1). A device according to the invention for removing COfrom a gas mixture comprises an absorption unit, a desorption unit, and an absorption medium according to the invention that is conducted in the circuit.

COis absorbed from a gas mixture by bringing the gas mixture into contact with an absorbent that comprises water and at least one amine of the formula (I), wherein Rand R, independently of each other, are hydrogen or an alkyl group. According to the invention, absorption media comprise sulfolane or an ionic liquid in addition to water and an amine of the formula (I). A device according to the invention for removing COfrom a gas mixture comprises an absorption unit, a desorption unit, and an absorption medium according to the invention that is conducted in the circuit. 

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Alzenau, Germany

Jörn Rolker