METHOD FOR THE REMOVAL OF CARBON DIOXIDE FROM FLUE GASES

    公开(公告)号:CA2557911A1

    公开(公告)日:2005-09-22

    申请号:CA2557911

    申请日:2005-03-09

    Applicant: BASF AG

    Abstract: The invention relates to a method for the removal of carbon dioxide from a gas flow, in which the partial pressure of the carbon dioxide in the gas flow is less than 200 mbar, whereby the gas flow is brought into contact with a liquid absorption agent, comprising an aqueous solution (A) of a tertiary aliphatic amine and (B) an activator of general formula R 1 -NH-R 2 -NH 2 , where R 1 =C 1 -C 6 alkyl and R 2 =C 2 -C 6 alkylene. The method is particularly suitable for treatment of flue gases and also relates to an absorption agent.

    METHOD FOR THE REMOVAL OF CARBON DIOXIDE FROM GAS FLOWS WITH LOW CARBON DIOXIDE PARTIAL PRESSURES

    公开(公告)号:CA2559081C

    公开(公告)日:2012-12-18

    申请号:CA2559081

    申请日:2005-03-09

    Applicant: BASF AG

    Abstract: The invention relates to a method for the removal of carbon dioxide from a gas flow with a carbon dioxide partial pressure in the gas flow of less than 200 mbar, whereby the gas flow is brought into contact with a liquid absorption agent, selected from an aqueous solution (A) of an amino compound with at least two tertiary amino groups in the molecule and (B) an activator, selected from the primary and secondary amines, or (A) a tertiary aliphatic amine, the reaction enthalpy .DELTA.R H for the protonation of which is greater than that for methyldiethanolamine and (B) an activator, selected from 3-methylaminopropylamine, piperazine, 2-methylpiperazine, N-methylpiperazine, homopiperazine, piperidine and morpholine. The method is particularly suitable for the treatment of flue gases and also relates to an absorption agent.

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