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    • 11. 发明授权
    • Process and composition for removing carbon dioxide containing acidic
gases from gaseous mixtures
    • 用于从气体混合物中除去含有酸性气体的二氧化碳的方法和组合物
    • US4217236A
    • 1980-08-12
    • US835773
    • 1977-09-22
    • Guido SartoriDavid W. Savage
    • Guido SartoriDavid W. Savage
    • B01D53/40B01D53/14B01D53/77B01J19/00C10K1/14C09K3/00
    • B01D53/1493Y02C10/06
    • Carbon dioxide containing acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an aqueous amine solution, wherein the amine consists of at least about 50 mol % of a sterically hindered amino alcohol and at least about 10 mol % of a tertiary amino alcohol, wherein said sterically hindered amino alcohol contains at least one secondary amino group which is part of a ring and is attached to either a secondary or tertiary carbon atom or a primary amino group attached to a tertiary carbon atom. The coaction of the sterically hindered amino alcohol and the tertiary amino alcohol provide an increase in the amount of carbon dioxide containing acidic gases absorbed compared to the use of the sterically hindered amines alone and lowers the heat of reaction.
    • 含有酸性气体的二氧化碳基本上通过包括使常规气态混合物与胺水溶液接触的方法从常规气态混合物除去,其中胺由至少约50mol%的空间位阻氨基醇和至少约10 mol%的叔氨基醇,其中所述空间位阻氨基醇含有至少一个仲氨基,其为环的一部分,并且连接于连接到叔碳原子的仲或叔碳原子或伯氨基。 与单独使用空间位阻胺相比,空间位阻氨基醇和叔氨基醇的共同作用增加了吸收的二氧化碳含量,降低了反应热。