Production of low sulfur/low aromatics distillates
    34.
    发明授权
    Production of low sulfur/low aromatics distillates 有权
    生产低硫/低芳烃馏分

    公开(公告)号:US06835301B1

    公开(公告)日:2004-12-28

    申请号:US09457434

    申请日:1999-12-07

    IPC分类号: C10G6512

    CPC分类号: C10G65/12

    摘要: A process for hydroprocessing a hydrotreated liquid distillate stream to produce a stream exceptionally low in sulfur as well as aromatics. A hydrotreated distillate stream is further hydrotreated in a co-current reaction zone wherein the reaction product is passed to a separation drum wherein a vapor product is collected overhead and a liquid product is passed to a aromatics saturation zone countercurrent to the flow of hydrogen treat gas.

    摘要翻译: 加氢加工处理的液体馏出物流以产生特别低的硫以及芳族化合物的方法。 加氢处理的馏出物流在并流反应区中进一步加氢处理,其中将反应产物通入分离鼓,其中蒸气产物在塔顶馏出,液体产物通过与氢处理气体流逆流的芳烃饱和区 。

    Production of low sulfur/low aromatics distillates
    35.
    发明授权
    Production of low sulfur/low aromatics distillates 有权
    生产低硫/低芳烃馏分

    公开(公告)号:US06824673B1

    公开(公告)日:2004-11-30

    申请号:US09553374

    申请日:2000-04-20

    IPC分类号: C10G4500

    CPC分类号: C10G65/12

    摘要: A process for producing distillate boiling range streams that are low in both sulfur and aromatics. A distillate feedstock is treated in a first hydrodesulfurization stage in the presence of a hydrogen-containing treat gas and a hydrodesulfurization catalyst, thereby resulting in partial desufurization of the stream. The partially desulfurized distillate stream is then treated in a second hydrodesulfurization stage, also in the presence of a hydrogen-containing treat gas and a hydrodesulfurization catalyst. The hydrogen-containing treat gas is cascaded from the next downstream reaction stage, which is an aromatics hydrogenation stage.

    摘要翻译: 一种生产硫和芳烃含量低的馏出物沸腾物流的方法。 在含氢处理气体和加氢脱硫催化剂的存在下,在第一加氢脱硫阶段处理馏出物原料,从而导致料流的部分脱硫。 然后在第二加氢脱硫阶段,在含氢处理气体和加氢脱硫催化剂的存在下处理部分脱硫的馏出物物流。 含氢处理气体从下一个下游反应阶段级联,其是芳族化合物氢化反应阶段。

    STACKING OF LOW ACTIVITY OR REGENERATED CATALYST ABOVE HIGHER ACTIVITY CATALYST
    39.
    发明申请
    STACKING OF LOW ACTIVITY OR REGENERATED CATALYST ABOVE HIGHER ACTIVITY CATALYST 有权
    堆积低活性或再生催化剂高于高活性催化剂

    公开(公告)号:US20110079542A1

    公开(公告)日:2011-04-07

    申请号:US12889604

    申请日:2010-09-24

    IPC分类号: C10G45/08

    摘要: Processes are provided for using employing lower activity hydrodesulfurization catalysts while achieving a desired product sulfur content. After determining effective reaction conditions for hydrodesulfurization using a reference catalyst system, an upstream portion of the catalyst system can be replaced with a lower activity upstream portion. The process allows tailored product sulfur levels to be achieved using reaction conditions similar to those for the reference catalyst system.

    摘要翻译: 提供了使用低活性加氢脱硫催化剂同时达到所需产物硫含量的方法。 在使用参考催化剂体系确定加氢脱硫的有效反应条件之后,可以用较低活性的上游部分代替催化剂体系的上游部分。 该方法允许使用与参考催化剂体系类似的反应条件来实现定制的产品硫含量。