Process for the selective reduction to the content of benzene and light
unsaturated compounds in a hydrocarbon cut
    13.
    发明授权
    Process for the selective reduction to the content of benzene and light unsaturated compounds in a hydrocarbon cut 失效
    在烃切割中选择性还原苯和轻不饱和化合物的含量的方法

    公开(公告)号:US6048450A

    公开(公告)日:2000-04-11

    申请号:US774926

    申请日:1996-12-27

    CPC分类号: C10G65/08 C10G2400/02

    摘要: A process for treating a feed comprising C.sub.5.sup.+ hydrocarbons and comprising at least one unsaturated C.sub.6.sup.+ compound including benzene, is such that the feed is treated in a distillation zone, associated with a hydrogenation zone, comprising at least one catalytic bed, in which the hydrogenation is carried out of unsaturated C.sub.6.sup.+ compounds contained in the feed, and whereof a charge for the hydrogenation step is removed at the height of a removal level and represents at least part of the liquid flowing in the distillation zone, and the effluent from the hydrogenation reaction zone is at least in part reintroduced into the distillation zone to ensure continuity of the distillation operation, the effluents at the top and bottom on the distillation zone being very depleted of unsaturated C.sub.6.sup.+ compounds. The effluent drawn off from the top of the distillation zone is treated in a zone for the isomerisation of C.sub.5 and/or C.sub.6 paraffins.

    摘要翻译: 用于处理包含C5 +烃并且包含至少一种包含苯的不饱和C 6 +化合物的进料的方法使得在与包含至少一个催化床的氢化区相关联的蒸馏区中处理进料,其中氢化是 由进料中含有的不饱和C6 +化合物进行,并且在去除水平的高度处除去氢化步骤的装料,并且代表在蒸馏区中流动的液体的至少一部分,以及来自氢化反应区的流出物 至少部分地重新引入蒸馏区以确保蒸馏操作的连续性,蒸馏区顶部和底部的流出物非常耗尽不饱和C6 +化合物。 从蒸馏区顶部排出的流出物在一个区域中进行处理,以使C5和/或C6链烷烃异构化。

    Catalytic dehydroisomerization of C.sub.4 -C.sub.5 n-paraffins
    19.
    发明授权
    Catalytic dehydroisomerization of C.sub.4 -C.sub.5 n-paraffins 失效
    C4-C5正链烷烃的催化脱氢异构化

    公开(公告)号:US5866746A

    公开(公告)日:1999-02-02

    申请号:US728424

    申请日:1996-10-10

    IPC分类号: B01J23/56 C07C5/373 C07C5/333

    摘要: The present invention concerns, in the dehydroisomerization of at least one C.sub.4 -C.sub.5 n-paraffin, preferably n-butane, the use of a catalyst comprising a refractory oxide based support, preferably an alumina, at least one precious metal from group VIII, preferably platinum or palladium, optionally at least one element from group IVB such as titanium or zirconium, preferably titanium, optionally at least one element from the group formed by germanium, tin, lead, rhenium, tungsten and indium, and optionally at least one halogen such as chlorine. The present invention also concerns the regeneration of this catalyst.

    摘要翻译: 本发明涉及至少一种C 4 -C 5正链烷烃,优选正丁烷的脱氢异构化,使用包含耐火氧化物基载体,优选氧化铝的催化剂,至少一种来自第VIII族的贵金属 铂或钯,任选地至少一种来自IVB族的元素,例如钛或锆,优选钛,任选地至少一种来自由锗,锡,铅,铼,钨和铟形成的基团的元素,以及任选的至少一种卤素 作为氯。 本发明还涉及该催化剂的再生。

    Process for reducing the benzene content of petrols
    20.
    发明授权
    Process for reducing the benzene content of petrols 失效
    降低汽油苯含量的方法

    公开(公告)号:US5534658A

    公开(公告)日:1996-07-09

    申请号:US477588

    申请日:1995-06-07

    CPC分类号: B01J23/74 B01J23/40 C10G45/60

    摘要: The invention concerns a process for reducing the benzene content of petrol fractions and isomerizing paraffins in the presence of an isomerization catalyst comprising 4 to 15% of at least one halogen and at least one metal from group VIII deposited on a support composed of a mixture of specific proportions of eta alumina and gamma alumina, in which isomerization is carried out on a mixture of a) a feed with the following composition by weight: 40% to 80% of paraffins, 0.5% to 7% of cyclic hydrocarbons and 6% to 45% of aromatics, and with a maximum distillation temperature of between 70.degree. C. and 90.degree. C., b) a C.sub.5 -C.sub.6 cut which is generally a straight run cut, and c) a chlorine-containing compound providing a concentration of 50-5000 ppm of chlorine in the mixture.

    摘要翻译: 本发明涉及一种在含有4至15%的至少一种卤素和至少一种VIII族金属的异构化催化剂存在下降低汽油馏分的苯含量并沉积在载体上的方法,所述载体由 特殊比例的ηa氧化铝和γ氧化铝,其中异构化在a)具有以下重量组成的进料的混合物上进行:40%至80%的链烷烃,0.5%至7%的环状烃和6% 45%的芳族化合物,最高蒸馏温度在70℃至90℃之间,b)一般为直线切割的C5-C6馏分,和c)提供浓度为 混合物中为50-5000ppm的氯。