AMINE TREATING PROCESS FOR ACID GAS SEPARATION USING BLENDS OF AMINES AND ALKYLOXYAMINES
    71.
    发明申请
    AMINE TREATING PROCESS FOR ACID GAS SEPARATION USING BLENDS OF AMINES AND ALKYLOXYAMINES 审中-公开
    使用氨基和烷基甲酰胺的混合物进行酸分离的胺处理方法

    公开(公告)号:US20130243676A1

    公开(公告)日:2013-09-19

    申请号:US13793212

    申请日:2013-03-11

    Abstract: A process for absorbing H2S and CO2 from a gas mixture containing both these gases comprises contacting the gas mixture with an absorbent combination of (i) primary absorbent component comprising a severely sterically hindered tertiary etheramine triethylene glycol alcohol or derivative of such an alcohol and (ii) secondary absorbent component for acidic gases comprising a liquid amine such as methyldiethylamine (MDEA), monoethanolamine (MEA), 2-amino-2-methyl-1-propanol (AMP), piperazine (PZ), diethanolamine (DEA), triethanolamine (TEA), diglycolamine (aminoethoxyethanol, DGA) and diisopropylamine (DIPA) another etheramine alcohol or diamine. By using the combination of amine absorbents, the overall selectivity of CO2 pickup can be maintained while retaining good H2S sorption selectivity; the selectivity of the combination for H2S and CO2 may be controlled over a range of gas loadings in the absorbent.

    Abstract translation: 从含有这两种气体的气体混合物中吸收H 2 S和CO 2的方法包括使气体混合物与(i)主要吸收组分包含严格位阻的叔胺三乙二醇醇或这种醇衍生物的吸收组合接触, )含有液体胺如甲基二乙胺(MDEA),单乙醇胺(MEA),2-氨基-2-甲基-1-丙醇(AMP),哌嗪(PZ),二乙醇胺(DEA),三乙醇胺( TEA),二甘醇胺(氨基乙氧基乙醇,DGA)和二异丙胺(DIPA)另一种醚胺醇或二胺。 通过使用胺吸收剂的组合,可以保持CO2吸收的总体选择性,同时保持良好的H 2 S吸附选择性; 可以在吸收剂中的气体负载范围内控制组合对于H 2 S和CO 2的选择性。

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