Method and absorbent composition for recovering a gaseous component from a gas stream
    2.
    发明授权
    Method and absorbent composition for recovering a gaseous component from a gas stream 有权
    从气流中回收气态组分的方法和吸收组合物

    公开(公告)号:US08388737B2

    公开(公告)日:2013-03-05

    申请号:US12598598

    申请日:2008-05-29

    IPC分类号: B01D53/14

    摘要: A method and apparatus for recovering a gaseous component from an incoming gas stream is described. The incoming gas stream is contacted with a lean aqueous absorbing medium to absorb at least a portion of the gaseous component from the incoming gas stream to form a lean treated gas stream and a rich aqueous absorbing medium. At least a portion of the gaseous component is desorbed from the rich aqueous absorbing medium at a temperature to form an overhead gas stream and a regenerated aqueous absorbing medium. At least a portion of the overhead gas stream is treated to recover a condensate stream. At least a portion of the condensate stream is used to form a heated stream. At least a portion of the heated stream is recycled back to the desorbing step. Novel absorbing medium compositions to recover carbon dioxide and/or hydrogen sulfide are also described.

    摘要翻译: 描述了用于从进入的气流中回收气态成分的方法和装置。 将进入的气流与贫吸收水介质接触以从进入的气流吸收至少一部分气态组分以形成贫处理气流和富含水的吸收介质。 至少一部分气态组分在富含水吸收介质中在一定温度下解吸,形成塔顶气流和再生水溶液吸收介质。 顶部气流的至少一部分被处理以回收冷凝物流。 冷凝物流的至少一部分用于形成加热流。 加热的流的至少一部分被再循环回到解吸步骤。 还描述了回收二氧化碳和/或硫化氢的新型吸收介质组合物。

    CORROSION INHIBITORS
    7.
    发明申请
    CORROSION INHIBITORS 审中-公开
    腐蚀抑制剂

    公开(公告)号:US20110300044A1

    公开(公告)日:2011-12-08

    申请号:US13101945

    申请日:2011-05-05

    摘要: Corrosion inhibitors and processes, uses, methods, compositions, devices, and apparatus involving corrosion inhibitors are disclosed. In certain embodiments the use of specific corrosion inhibitors, specific concentrations of inhibitors, blends of inhibitors, processes utilizing such inhibitors, and compositions comprising such inhibitors, for example in acid gas separation systems such as aqueous amine- or ammonia-based CO2 separation systems (e.g., the post combustion capture of CO2 from flue gases using amines). According to some embodiments, corrosion inhibitors are used in a process for separating at least a portion of an acid gas from a gaseous mixture wherein the inhibitor is at least one selected from dodecylamine, sodium molybdate, morpholine, or a combination thereof.

    摘要翻译: 公开了腐蚀抑制剂和方法,用途,方法,组合物,装置和涉及腐蚀抑制剂的装置。 在某些实施方案中,使用特定的腐蚀抑制剂,特定浓度的抑制剂,抑制剂的共混物,利用这种抑制剂的方法,以及包含这种抑制剂的组合物,例如在酸性气体分离系统中,例如基于胺或氨的二氧化碳水分离系统 例如,使用胺从烟道气中对二氧化碳进行后燃烧捕集)。 根据一些实施方案,腐蚀抑制剂用于从气态混合物中分离至少一部分酸性气体的方法,其中所述抑制剂是选自十二烷基胺,钼酸钠,吗啉或其组合中的至少一种。