PROCESS FOR THE RECOVERY OF CARBON DIOXIDE FROM A GAS STREAM
    2.
    发明公开
    PROCESS FOR THE RECOVERY OF CARBON DIOXIDE FROM A GAS STREAM 审中-公开
    VERFAHREN ZUR WIEDERHERSTELLUNG VON KOHLENDIOXID AUS EINEM GASSTROM

    公开(公告)号:EP2097156A4

    公开(公告)日:2011-11-09

    申请号:EP07855621

    申请日:2007-12-14

    发明人: OUIMET MICHEL A

    摘要: A process for removing acid gas from a gas stream utilizes a low viscosity absorbent comprising a solution of at least one selected amine. The absorbent may include (1) at least one polyamine in the absence of an effective amount of tertiary amine functionalities having a pKa sufficient to neutralize carbamic acid, wherein the polyamine has at least one primary amine functionality having a pKa of

    摘要翻译: 从气流中除去酸性气体的方法使用包含至少一种所选胺的溶液的低粘度吸收剂。 在没有有效量的具有足以中和氨基甲酸的pKa的叔胺官能团的情况下,吸收剂可以包括(1)至少一种多胺,其中多胺在25℃下具有pKa <10.0的至少一种伯胺官能团 并且其中所述进料气流具有小于5ppm体积的SO 2浓度; 或(2)不存在有效量的具有足以中和氨基甲酸的pKa的叔胺官能团的多胺,其中所述多胺具有至少一种在25℃下每种吸附氮<10.0的pKa的仲胺官能度 多胺可以包括二亚乙基三胺(DETA),三亚乙基四胺(TETA)和四亚乙基五胺(TEPA)或其混合物。