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AssigneeEvonik Degussa GmbH
InventorsMatthias Seiler, Jörn Rolker, Rolf Schneider, Bernd Glöckler, Axel Kobus, Wolfgang Benesch, Thomas Riethmann, Hermann Winkler, Jens Reich, Helmut Brüggemann
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CO2 is 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 R1 and R2, 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 CO2 from a gas mixture comprises an absorption unit, a desorption unit, and an absorption medium according to the invention that is conducted in the circuit.
An absorption medium for the absorption of CO2 from a gas mixture, comprising water, sulpholane and at least one amine of formula (I)
The method according of 10, wherein the absorption is carried out at a temperature in the range from 0 to 70° C. and the desorption at a higher temperature in the range from 50 to 200° C.
A device for separating CO2 from a gas mixture, said device comprising an absorption unit, a desorption unit and a circulating absorption medium, wherein said absorption medium comprises water, sulpholane and at least one amine of formula (I):
Dependencies are inferred from the claim text.