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    • 4. 发明授权
    • Dehydrogenation of alkyl aromatics
    • 烷基芳烃脱氢
    • US07981377B2
    • 2011-07-19
    • US11982961
    • 2007-11-06
    • James MerrillThomas ParenteauMarcus LedouxMark Gremillion
    • James MerrillThomas ParenteauMarcus LedouxMark Gremillion
    • B01J8/02B01J8/04B01J19/26
    • B01J8/008B01J8/0214B01J8/0278B01J2208/00176B01J2208/00371B01J2208/00849B01J2219/0004C07C5/3332C07C2523/78C07C15/46
    • Dehydrogenation of a reactor system of one or more vertically oriented flow reactors equipped with a system for introducing a catalyst extender into the inlet of the reactor. A vertically oriented radial flow reactor comprises inner and outer reactor tubes having perforated wall members extending longitudily of the reactor and defining an annulus containing a dehydrogenation catalyst. A supply line to the reactor is equipped with a rotation vane. An injection nozzle comprising a coaxial flow tube extends into the supply line downstream of the vane. The coaxial flow tube has an interior chamber and an annular chamber surrounding the interior chamber and extending into the supply line along with the interior chamber. The interior chamber is connected to a catalyst extender source and the annular chamber is connected to a source of a carrier gas which is effective to disperse the extender within feedstock flowing into the reactor.
    • 一个或多个垂直取向的流动反应器的反应器系统的脱氢装备有用于将催化剂增量剂引入反应器入口的系统。 垂直取向的径向流动反应器包括内部和外部反应器管,其具有穿过反应器纵向延伸的多孔壁构件并且限定含有脱氢催化剂的环。 反应器的供应管路配备有旋转叶片。 包括同轴流管的喷嘴延伸到叶片下游的供应管线中。 同轴流管具有内部腔室和围绕内部腔室并与内部腔室一起延伸进入供应管线的环形腔室。 内部室连接到催化剂延长源,并且环形室连接到载气的源,其有效地将延长剂分散在流入反应器的原料内。
    • 10. 发明申请
    • Treatment of Alkylation Catalyst Poisons with Dehydrogenation
    • 用脱氢处理烷基化催化剂毒物
    • US20090149685A1
    • 2009-06-11
    • US12327682
    • 2008-12-03
    • James R. ButlerMarcus LedouxMichael Betbeze
    • James R. ButlerMarcus LedouxMichael Betbeze
    • C07C2/00
    • C07C5/333C07C2529/06C07C15/46
    • Methods and processes for reducing alkylation catalyst poisoning are described herein. Such methods generally include providing a dehydrogenation system including a dehydrogenation reactor and a separation system, wherein the separation system includes a first column and a second column, introducing an alkyl aromatic hydrocarbon into the dehydrogenation reactor, contacting the alkyl aromatic hydrocarbon with a dehydrogenation catalyst disposed within the dehydrogenation reactor to form a dehydrogenation output stream comprising a vinyl aromatic hydrocarbon, passing at least a portion of the dehydrogenation output stream to first column, recovering a first overhead fraction including benzene and a first bottoms fraction from the first column, passing at least a portion of the benzene from the first column to an alkylation system including an alkylation catalyst, passing the first bottoms fraction from the first column to the second column, recovering a second overhead fraction and a second bottoms fraction from the second column, withdrawing offtest from effluent streams selected from the dehydrogenation output stream, the first bottoms fraction, the second bottoms fraction and combinations thereof to form withdrawn offtest and introducing the withdrawn offtest into the separation system downstream from the first column.
    • 本文描述了用于还原烷基化催化剂中毒的方法和方法。 这样的方法通常包括提供包括脱氢反应器和分离系统的脱氢系统,其中分离系统包括第一塔和第二塔,将烷基芳烃引入脱氢反应器中,使烷基芳族烃与脱氢催化剂接触 在脱氢反应器内以形成包含乙烯基芳族烃的脱氢输出物流,将至少一部分脱氢输出流送至第一塔,从第一塔回收包括苯和第一塔底馏分的第一塔顶馏分,至少通过 从第一塔的一部分苯到包含烷基化催化剂的烷基化体系,将第一塔底馏分从第一塔通到第二塔,从第二塔回收第二塔顶馏分和第二塔底馏分, 流出物流 选自脱氢输出流,第一塔底馏分,第二塔底馏分及其组合,以形成退出,并将排出的最后馏分引入第一塔下游的分离系统。