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    Hydroprocessing methods and apparatus for use in the preparation of liquid hydrocarbons
    2.
    发明授权
    Hydroprocessing methods and apparatus for use in the preparation of liquid hydrocarbons 有权
    用于制备液体烃的加氢处理方法和装置

    公开(公告)号：US07354507B2

    公开(公告)日：2008-04-08

    申请号：US10802974

    申请日：2004-03-17

    申请人： Sridhar Gopalakrishnan ,  Vincent H. Melquist ,  Rafael L. Espinoza ,  Doug S. Jack ,  Keith Henry Lawson

    发明人： Sridhar Gopalakrishnan ,  Vincent H. Melquist ,  Rafael L. Espinoza ,  Doug S. Jack ,  Keith Henry Lawson

    IPC分类号： C10G65/00

    CPC分类号： C10G65/00 ,  C10G2400/04

    摘要： The present invention is generally related towards enhancing the yield and/or cold-flow properties of certain hydrocarbon products, increasing the degree of isomerization in a diesel product and/or increasing the production rate of a diesel product. The embodiments generally include reducing the residence time of lighter hydrocarbon fractions during hydrocracking, thereby decreasing secondary cracking, by various configurations of introducing at least two hydrocarbon feedstreams of different boiling ranges at different entry points in a hydrocracking unit. A method further includes forming a hydrocarbons stream comprising primarily C5+ Fischer-Tropsch hydrocarbon products; fractionating hydrocarbons stream to form at least a wax fraction and an intermediate fraction which serve as separate feedstreams to a hydrocracking unit comprising at least two hydroconversion zones. One embodiment comprises the use of a bifunctional catalyst in one of the hydrocracking zones so as to favor hydroisomerization of hydrocarbons to favor the formation of branched paraffins boiling in the diesel range.

    摘要翻译： 本发明通常涉及提高某些烃产品的产率和/或冷流性质，增加柴油产品中的异构化程度和/或提高柴油产品的生产率。 实施方案通常包括通过在加氢裂化装置的不同入口处引入不同沸程的至少两种烃进料流的各种构型，减少加氢裂化期间较轻烃馏分的停留时间，从而减少二次裂化。 一种方法还包括形成主要包含C 5+费 - 托烃产物的烃物流; 分馏烃流以形成至少蜡馏分和中间馏分，其用作分离的进料流至包含至少两个加氢转化区的加氢裂化单元。 一个实施方案包括在一个加氢裂化区中使用双官能催化剂，以有利于烃的加氢异构化，有利于在柴油范围内沸腾的支链烷烃的形成。

    Prevention of and recovering from a catalyst bed slumping in a gas-agitated multiphase reactor
    3.
    发明授权
    Prevention of and recovering from a catalyst bed slumping in a gas-agitated multiphase reactor 有权
    在气体搅拌的多相反应器中预防和从催化剂床中回收坍落

    公开(公告)号：US07230034B2

    公开(公告)日：2007-06-12

    申请号：US10804521

    申请日：2004-03-19

    申请人： Sergio R. Mohedas ,  Rafael L. Espinoza ,  Jack E. Cnossen ,  Todd H. Harkins ,  Vincent H. Melquist ,  Larry D. Swinney

    发明人： Sergio R. Mohedas ,  Rafael L. Espinoza ,  Jack E. Cnossen ,  Todd H. Harkins ,  Vincent H. Melquist ,  Larry D. Swinney

    IPC分类号： C07C27/00

    CPC分类号： B01J8/22 ,  B01J8/1809 ,  B01J8/1827 ,  B01J2208/00088 ,  B01J2208/00132 ,  B01J2208/00548 ,  C10G2/344

    摘要： The invention relates to methods for prevention of and recovery from a catalyst bed slumping in a gas-agitated multiphase hydrocarbon synthesis reactor, while the reactor is either under non-reactive conditions or under reaction promoting conditions when syngas is converted to products. The reactor contains a catalyst bed comprising catalyst particles and a gas injection zone suitable for injecting a reactor gas feed. A method for preventing bed slumping comprises supplying a supplemental gas to the gas-agitated multiphase reactor to prevent the catalyst bed from slumping due to insufficient reactor gas feed flow. The method may include recycling some or all of the supplemental gas to the reactor. The method may further comprise separating the gas injection zone from the catalyst bed with a porous plate so as to prevent migration of catalyst particles into the gas injection zone and to minimize plugging of gas distributor(s) present in said zone.

    摘要翻译： 本发明涉及用于在气体搅拌的多相烃合成反应器中预防和从催化剂床坍落的方法，同时当合成气转化成产物时，反应器处于非反应性条件或反应促进条件下。 反应器包含催化剂床，催化剂床包含催化剂颗粒和适于注入反应器气体进料的气体注入区。 防止床塌陷的方法包括向气体搅拌的多相反应器供应补充气体，以防止催化剂床由于反应器气体进料流量不足而塌陷。 该方法可以包括将一些或全部补充气体再循环到反应器中。 该方法可以进一步包括用多孔板将气体注入区与催化剂床分离，以防止催化剂颗粒迁移到气体注入区中并且使存在于所述区中的气体分配器的堵塞最小化。