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    Plural stage residue hydrodesulfurization process
    6.
    发明授权
    Plural stage residue hydrodesulfurization process 失效
    多级残渣加氢脱硫工艺

    公开(公告)号：US3905893A

    公开(公告)日：1975-09-16

    申请号：US39036273

    申请日：1973-08-22

    Applicant: GULF RESEARCH DEVELOPMENT CO

    Inventor： CHRISTMAN ROBERT D ,  HENKE ALFRED M ,  PARASKOS JOHN A ,  WILSON GEOFFREY R ,  YANIK STEPHEN J

    IPC: C10G65/04 ,  C10G34/00

    CPC classification number: C10G65/04 ,  C10G2300/107

    Abstract: A multiple stage process is described for the catalytic hydrodesulfurization and hydrodemetallization of a residual petroleum oil boiling above the gasoline range. The product of the process comprises essentially material boiling above the gasoline range and comprises little material boiling below the initial boiling point of the residual oil feed. The hydrodesulfurization-demetallization process comprises an initial stage involving relatively high hydrogen pressure in the presence of a catalyst comprising a relatively low proportion of catalytically active hydrogenation metals. The process employs a final stage in series having a relatively lower hydrogen pressure and a catalyst comprising a relatively higher proportion of hydrogenation metals. The stream entering the final stage contains an amount up to 10, 20 or even 25 weight percent of the asphaltene content of the charge to the first stage while the effluent from the final stage is essentially free of asphaltenes.

    Abstract translation: 描述了沸点高于汽油范围的残余石油的催化加氢脱硫和加氢脱金属的多阶段方法。 该方法的产物基本上在汽油范围之上的材料沸腾，并且包含沸点低于残油进料的初始沸点的少量材料。 加氢脱硫脱金属过程包括在催化剂存在下包含相对较低比例的催化活性氢化金属的相对高的氢气压力的初始阶段。 该方法采用具有相对较低的氢气压力的串联的最终阶段和包含相对较高比例的氢化金属的催化剂。 进入最后阶段的料流含有高达10,20或甚至25重量％的第一阶段装料的沥青质含量，而最终阶段的流出物基本上不含沥青质。

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