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    Process for increasing the cetane index of distillate obtained from the hydroprocessing of residua
    39.
    发明授权
    Process for increasing the cetane index of distillate obtained from the hydroprocessing of residua 失效
    从渣油加氢处理中提取馏出物的十六烷指数的方法

    公开(公告)号：US4415436A

    公开(公告)日：1983-11-15

    申请号：US396976

    申请日：1982-07-09

    申请人： Philip J. Angevine

    发明人： Philip J. Angevine

    IPC分类号： C10G45/08 ,  C10G47/20 ,  C10G65/12 ,  C10G11/05

    CPC分类号： C10G47/20 ,  C10G45/08 ,  C10G65/12 ,  C10G2300/107 ,  C10G2400/04

    摘要： A metal- and/or sulfur contaminated charge stock containing residua is hydrotreated in a first reaction zone in the presence of a hydrotreating catalyst comprising a hydrogenating component selected from the Group VIB and Group VIII metals, preferably a combination of nickel and molybdenum, on a refractory support, preferably alumina or silica-alumina, to reduce the metal and/or sulfur content thereof, the demetalated and/or desulfurized residua is hydrocracked in a second reaction zone in the presence of a hydrocracking catalyst comprising a nickel and tungsten impregnated rare earth exchanged zeolite X in combination with a nickel and tungsten impregnated silica-alumina matrix to provide distillate of higher cetane index than that achieved with hydrotreatment alone, and the liquid effluent from said second reaction zone is thereafter passed to a third reaction zone containing a hydrotreating catalyst which is the same as, or is different from, the hydrotreating catalyst in the first reaction zone to effect further hydrotreatment.

    摘要翻译： 在含有选自VIB族和第Ⅷ族金属，优选镍和钼的组合的氢化组分的加氢处理催化剂存在下，在第一反应区中加氢处理含有金属和/或硫污染的含有残留物的原料， 耐火载体，优选氧化铝或二氧化硅 - 氧化铝，以减少其金属和/或硫含量，脱金属和/或脱硫的残余物在包含镍和钨浸渍稀土的加氢裂化催化剂存在下在第二反应区中加氢裂化 交换沸石X与镍和钨浸渍的二氧化硅 - 氧化铝基质组合，以提供比单独用加氢处理实现的高的十六烷指数的馏出物，然后将来自所述第二反应区的液体流出物送入含有加氢处理催化剂的第三反应区 其与第一种加氢处理催化剂相同或不同 反应区进行进一步的加氢处理。