PROCESS TO CONTINUOUSLY PREPARE TWO OR MORE BASE OIL GRADES AND MIDDLE DISTILLATES
    50.
    发明申请
    PROCESS TO CONTINUOUSLY PREPARE TWO OR MORE BASE OIL GRADES AND MIDDLE DISTILLATES 审中-公开
    连续制备两种或多种基础油和中间馏分的方法

    公开(公告)号:WO2005085393A1

    公开(公告)日:2005-09-15

    申请号:PCT/EP2005/050857

    申请日:2005-03-01

    CPC classification number: C10G65/12 C10G45/58

    Abstract: Process to prepare simultaneously two or more base oil grades and middle distillates from a de-asphalted oil or a vacuum distillate feed or their mixtures by performing the following steps: (a) hydrocracking the feed, thereby obtaining an effluent; (b) distillation of the effluent as obtained in step (a) into one or more middle distillates and a residue boiling substantially above 340 ° C; (c) separating, by means of a further distillation step said residue into a light base oil precursor fraction and a heavy base oil precursor fraction; (d) reducing the pour point of each separate base oil precursor-fraction iri"two simultaneously and parallel operated catalytic dewaxing reactors obtaining a first and second dewaxed oil; (e) hydrotreating the first dewaxed oil as obtained when dewaxing the heavy base oil precursor fraction in step (d); (f) isolating from the second dewaxed oil from the light base oil precursor fraction from step (d) and the hydrotreated oil from step (e) two or more base oil grades.

    Abstract translation: 通过进行以下步骤同时从脱沥青油或真空馏分进料或其混合物中同时制备两种或更多种基础油级和中间馏分的方法:(a)加氢裂化进料,从而获得流出物; (b)将步骤(a)中获得的流出物蒸馏成一种或多种中间馏分和基本上在340℃以上沸腾的残余物; (c)通过进一步的蒸馏步骤将所述残余物分离成轻质基础油前体馏分和重质基础油前体馏分; (d)减少每个单独的基础油前体馏分的两个同时和平行操作的催化脱蜡反应器的倾点,获得第一和第二脱蜡油;(e)加氢处理当脱蜡重质基础油前体时获得的第一脱蜡油 步骤(d)中的馏分;(f)从第二脱蜡油与步骤(d)的轻质基础油前体馏分和来自步骤(e)的加氢处理的油分离两种或更多种基础油级。

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