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REMOVAL OF MERCURY AND MERCURIC COMPOUNDS FROM CRUDE OIL STREAMS

机译:从原油流中去除汞和汞化合物

摘要

The invention is directed towards a method of removing mercury bearing species from a hydrocarbon containing fluid. The method comprises the steps of: i) adding dithiocarbamate polymer to the fluid in an amount such that the number of mercury bonding sites on the polymer exceeds the amount of mercury atoms by at least 10% and ii) removing the mercury bearing dithiocarbamate polymer with a water/oil separation device. The invention relies upon an unexpected reversal in the solubility of dithiocarbamate polymer at very high concentrations. Because of the high solubility the polymer remains within the water phase of the hydrocarbon fluid and can be removed without the need for cumbersome precipitation methods and complicated solid liquid separation devices. As a result, the invention allows mercury contaminated crude oil to be easily rid of its mercury with easy to use equipment already present in a typical oil refinery.
机译:本发明涉及从含烃流体中除去含汞物质的方法。该方法包括以下步骤:i)将二硫代氨基甲酸酯聚合物以一定的量添加到流体中,使得聚合物上的汞键合位点的数量超过汞原子的量至少10%,和ii)用以下方法除去含汞的二硫代氨基甲酸酯聚合物:水/油分离装置。本发明依赖于在非常高的浓度下二硫代氨基甲酸酯聚合物的溶解度的出乎意料的逆转。由于高溶解度,聚合物保留在烃类流体的水相中,可以除去而无需繁琐的沉淀方法和复杂的固液分离装置。结果,本发明允许使用典型的炼油厂中已经存在的易于使用的设备容易地去除被汞污染的原油。

著录项

  • 公开/公告号CA2841989C

    专利类型

  • 公开/公告日2019-06-11

    原文格式PDF

  • 申请/专利权人 NALCO COMPANY;

    申请/专利号CA20122841989

  • 发明设计人 BRADEN MICHAEL L.;LORDO SAMUEL A.;

    申请日2012-08-02

  • 分类号C10G29;B01D17/02;C10G31/08;C10G55;

  • 国家 CA

  • 入库时间 2022-08-21 11:59:06

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