CRUDE UNIT OVERHEAD CORROSION CONTROL USING MULTI AMINE BLENDS
    3.
    发明公开
    CRUDE UNIT OVERHEAD CORROSION CONTROL USING MULTI AMINE BLENDS 审中-公开
    采用多种胺混合物的原油装置进行腐蚀控制

    公开(公告)号:EP3246380A1

    公开(公告)日:2017-11-22

    申请号:EP17171568.3

    申请日:2017-05-17

    IPC分类号: C10G75/02 C10G7/10

    CPC分类号: C10G75/02 C10G7/10

    摘要: The present disclosure provides a method for inhibiting corrosion on internal metal surfaces of an overhead condenser of a crude distillation unit in which hydrocarbons, water and amine hydrochlorides condense, the method comprising adding to the overhead condenser an amine composition in an amount and at a rate sufficient to maintain the pH of water condensate in the condenser above a pH of about 5, the amine composition consisting of a mixture of four amines wherein the amines are monoethanloamine, methoxypropyl amine, morpholine and cyclohexylamine present in a weight ratio ranging from about 25:30:25:20 to about 30:40:15:15. The present disclosure further provides a system and method to assess the corrosion rate and to optimize the dosage of neutralizing amine composition during the operating conditions of overhead condensing system.

    摘要翻译: 本公开提供一种用于抑制其中烃,水和胺盐酸盐冷凝的原油蒸馏单元的塔顶冷凝器的内部金属表面上的腐蚀的方法,所述方法包括向塔顶冷凝器中加入一定量的胺组合物, 足以将冷凝器中水冷凝物的pH保持在大约5的pH以上,胺组合物由四种胺的混合物组成,其中胺为单乙醇胺,甲氧基丙胺,吗啉和环己胺,其重量比为约25: 30:25:20至30:40:15:15。 本发明进一步提供了一种系统和方法,用于在顶部冷凝系统的操作条件期间评估腐蚀速率并优化中和胺组合物的剂量。