AMINE ABSORBENT AND A METHOD FOR CO2 CAPTURE
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United States of America Patent
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Issued Date -
Jun 26, 2014
app pub date -
Jun 27, 2012
filing date -
Jun 27, 2011
priority date (Note) -
Abandoned
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Abstract
A liquid, aqueous CO2 absorbent comprising two or more amine compounds, where the aqueous solution of amines having absorbed CO2 is not, or only partly miscible with an aqueous solution of amines not having absorbed CO2, 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 CO2 capture using the CO2 absorbent, are described.
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