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    3.
    发明专利
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    公开(公告)号：PL217385A1

    公开(公告)日：1980-06-02

    申请号：PL21738579

    申请日：1979-07-25

    Applicant: STANDARD OIL CO

    Inventor： HENSLEY ALBERT L ,  QUICK JUN LEONARD M

    IPC: B01J21/04 ,  B01J23/24 ,  B01J23/28 ,  B01J23/40 ,  B01J23/64 ,  B01J23/74 ,  B01J23/84 ,  B01J27/02 ,  B01J35/10 ,  C10G45/04 ,  C10G45/08 ,  C10G65/04 ,  C10G

    Abstract: Disclosed is a two-stage catalytic process for hydrodemetallation and hydrodesulfurization of heavy hydrocarbon streams containing asphaltenes and a substantial amount of metals. The first stage of this process comprises contacting the feedstock in a first reaction zone with hydrogen and a demetallation catalyst comprising hydrogenation metal selected from Group VIB and/or Group VIII deposed on a large-pore, high surface area inorganic oxide support; the second stage of the process comprises contacting the effluent from the first reaction zone with a catalyst consisting essentially of hydrogenation metal selected from Group VIB deposed on a smaller pore, catalytically active support comprising alumina, said second stage catalyst having a surface area within the range of about 150 m2/gm to about 300 m2/gm, having a majority of its pore volume in pore diameters within the range of about 80 A to about 130 A, and the catalyst has a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.

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