| abstract |
A liquid, aqueous CO 2 absorbent comprising two or more amine compounds, where the aqueous solution of amines having absorbed CO 2 is not, or only partly miscible with an aqueous solution of amines not having absorbed CO 2 , where at least one of the amines is a tertiary amine, and where at least one of the amines is a primary and/or a secondary amine, wherein the tertiary amine is DEEA and the primary and/or secondary amine(s) is (are) selected from DAB, DAP, DiAP, DMPDA, HEP, or the tertiary amine is DIPAE, or N-TBDEA and primary and/or secondary amine(s) is (are) selected from DAB, DAP, DiAP, DMPDA, HEP, MAPA, and MEA, and a method for CO 2 capture using the CO 2 absorbent, are described. |