CRUDE UNIT OVERHEAD CORROSION CONTROL USING MULTI AMINE BLENDS
    5.
    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。

    High temperature corrosion inhibitor
    8.
    发明公开
    High temperature corrosion inhibitor 失效
    Hochtemperaturkorrosionsschutzmittel。

    公开(公告)号:EP0672744A1

    公开(公告)日:1995-09-20

    申请号:EP95301221.8

    申请日:1995-02-24

    申请人: BETZ EUROPE, INC.

    摘要: There is disclosed a process for the inhibition of corrosion e.g. caused. by naphthenic acid and sulphur compounds during the elevated temperature processing of crude oil by use of an aryl containing phosphite compound having one of the structures:

    wherein R₁, R₂ and R₃ each independantly represent an alkyl or aryl radical having C₆ to C₁₂, with the proviso that at least one R group is an aryl radical.

    摘要翻译: 公开了一种抑制腐蚀的方法,例如 造成的。 通过使用具有以下结构之一的含有亚磷酸酯化合物的芳基在原油的高温处理期间由环烷酸和硫化合物:其中R 1,R 2和R 3各自独立地表示具有C 6至C 12的烷基或芳基, 条件是至少一个R基团是芳基。

    Prevention of formation of fouling deposits on metallic surfaces
    9.
    发明公开
    Prevention of formation of fouling deposits on metallic surfaces 失效
    Verfahren zur Vorbeugung der Bildung vonSchmutzniederschlägenaufMetalloberflächen。

    公开(公告)号:EP0512689A1

    公开(公告)日:1992-11-11

    申请号:EP92303156.1

    申请日:1992-04-09

    申请人: BETZ EUROPE, INC.

    IPC分类号: C10G7/10

    CPC分类号: C10G7/10

    摘要: A process for adding at least a neutralizing amine having a pKa of between 5 and 8 to a petroleum refinery distillation unit for the purpose of preventing the formation of fouling deposits on metallic surfaces. The use of these amines raises the dew point pH sufficiently to prevent corrosion of the metallic surfaces of the overhead equipment while reducing the potential for the precipitation of amine salts.

    摘要翻译: 为了防止在金属表面上形成结垢沉积物的目的,向石油炼制蒸馏装置中加入至少一种具有5至8个pKa的中和胺的方法。 这些胺的使用提高了露点pH足以防止塔顶设备的金属表面的腐蚀,同时降低了胺盐沉淀的可能性。

    Method and composition for neutralizing acidic components in petroleum refining units
    10.
    发明公开
    Method and composition for neutralizing acidic components in petroleum refining units 失效
    Verfahren und Zusammensetzung zur中和vonSäuren在Petroleumraffinationsanlagen。

    公开(公告)号:EP0123395A2

    公开(公告)日:1984-10-31

    申请号:EP84301581.9

    申请日:1984-03-09

    申请人: BETZ EUROPE, INC.

    发明人: Niu, Joseph H.Y.

    IPC分类号: C10G7/10 C09K15/20

    摘要: There are disclosed methods and compositions for neutralizing acidic components in petroleum refining units. The neutralizing agent comprises a member selected from the group of dimethylaminoethanol and dimethylisopropanolamine. The neutralizing agent may be added directly to the charge, in a reflux line, or directly to the overhead line of the refining unit. In those instances in which sour crude is to be refined, it is desirable that dimethylisopropanolamine be used in conjunction with the dimethylaminoethanol. The neutralizing agents are preferably added in an amount sufficient to elevate the pH of the condensate (as measured at the accumulator) to within the pH range of 4.5-7.

    摘要翻译: 公开了用于中和石油精炼装置中的酸性组分的方法和组合物。 中和剂包括选自二甲基氨基乙醇和二甲基异丙醇胺的成员。 中和剂可直接加入到电荷中,在回流管线中,或直接加入到精炼装置的架空管线中。 在要粗炼酸性粗品的情况下,优选二甲基异丙醇胺与二甲基氨基乙醇一起使用。 中和剂优选以足以将冷凝物的pH(在蓄能器中测量)的pH提高到4.5-7的pH范围内的量加入。