COMPOSITIONS AND METHODS FOR REMOVING HEAVY METALS FROM FLUIDS
    1.
    发明申请
    COMPOSITIONS AND METHODS FOR REMOVING HEAVY METALS FROM FLUIDS 审中-公开
    用于从流体中除去重金属的组合物和方法

    公开(公告)号:WO2017100089A1

    公开(公告)日:2017-06-15

    申请号:PCT/US2016/064588

    申请日:2016-12-02

    Abstract: A sulfidic complexing agent is disclosed that includes a suspension or a solution formed by a reaction between a water-soluble metal compound and a water-soluble sulfidic compound. The sulfidic complexing agent has a pH of from about 5 to about 11 and a molar ratio of metal to sulfur of from about 0.1 to about 1,000. The sulfidic complexing agent is useful for removing elemental mercury from a hydrocarbon fluid by contacting the hydrocarbon fluid with the sulfidic complexing agent. The molar ratio of sulfur in the sulfidic complexing agent to mercury in the hydrocarbon fluid is from about 50 to about 2,500. Also disclosed is a method for concurrently transporting and removing a trace amount of volatile mercury in a CO 2 -containing natural gas stream extracted from a subterranean formation. The natural gas stream is transported in a pipeline into which the sulfidic complexing agent is injected. Also disclosed is a method for capturing gas phase elemental mercury from a gas stream in the overhead section of a crude oil distillation unit by contacting the gas stream with the sulfidic complexing agent in the overhead section of the distillation unit to form a treated gas stream.

    Abstract translation: 公开了一种包含悬浮液或通过水溶性金属化合物与水溶性硫化合物之间的反应形成的溶液的硫化络合剂。 该硫化络合剂的pH值为约5至约11,金属与硫的摩尔比为约0.1至约1,000。 通过使烃流体与硫化络合剂接触,硫化络合剂可用于从烃流体中除去元素汞。 硫化络合剂中的硫与烃流体中的汞的摩尔比为约50至约2,500。 还公开了一种同时运输和去除从地下地层提取的含CO 2天然气流中的微量挥发性汞的方法。 天然气流在硫化络合剂注入的管道中输送。 还公开了一种用于通过使原料蒸馏装置的塔顶部分中的气流与蒸馏装置的塔顶部分中的含硫络合剂接触以形成处理过的气体物流而从气流中捕集气相元素汞的方法。

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