External second stage cyclones in olefin production process
    41.
    发明申请
    External second stage cyclones in olefin production process 有权
    烯烃生产过程中外部二级旋风分离器

    公开(公告)号:US20060094917A1

    公开(公告)日:2006-05-04

    申请号:US11236477

    申请日:2005-09-27

    Abstract: The present invention comprises a process and apparatus for producing olefins from oxygenates in a reactor. This process comprises these oxygenates with a catalyst to produce a gaseous mixture comprising light olefins and by-products, sending the mixture to a single stage cyclone within said reactor to separate said catalyst from said gaseous mixture and then sending said the to a second stage cyclone. The second stage cyclone is located outside of said reactor and it functions to remove the catalyst from the mixture. Then the catalyst can be returned to the reactor after having been treated in a regeneration zone to remove carbonaceous deposits from the catalyst.

    Abstract translation: 本发明包括在反应器中由含氧化合物生产烯烃的方法和装置。 该方法包括这些含氧化物与催化剂以产生包含轻质烯烃和副产物的气体混合物,将混合物送入所述反应器内的单级旋风分离器,以将所述催化剂与所述气体混合物分离,然后将所述催化剂送至第二级旋风分离器 。 第二级旋风分离器位于所述反应器的外部,其功能是从混合物中除去催化剂。 然后可以在再生区中处理催化剂之后将催化剂返回到反应器中以从催化剂除去含碳沉积物。

    Apparatus and process for gas phase fluidized-bed polymerization
    44.
    发明授权
    Apparatus and process for gas phase fluidized-bed polymerization 失效
    气相流化床聚合的装置和方法

    公开(公告)号:US06911504B2

    公开(公告)日:2005-06-28

    申请号:US10257357

    申请日:2001-04-12

    Inventor: Vincent Reiling

    Abstract: A process for the continuous gas-phase (co)polymerization of one or more olefins for which a rising stream of a gas mixture, comprising at least one olefin to be (co)polymerized, maintains polymer particles in the course of formation in the fluidized state in a polymerization reactor, the said stream entraining fine particles above the fluidized bed outside the reactor, the said fine particles being substantially separated from the gas mixture using a separator, thus dividing the said stream into (i) one or more gas streams (A) substantially devoid of solid particles which is cooled and reintroduced below and/or into the bottom part of the fluidized bed, and (ii) one or more gas streams (B) comprising at least a portion of the said particles which is introduced into or above the fluidized bed, which process is characterized in that at least one of the gas streams (B) comprising the solid particles is introduced directly into the fluidized bed by a dilute-phase transport in a simple pipe, that is to say preferably without using equipment for setting in motion.

    Abstract translation: 一种或多种烯烃的连续气相(共)聚合的方法,其中包含至少一种待(共)聚合的烯烃的气体混合物的上升流在流化床的过程中保持聚合物颗粒 在聚合反应器中,所述物流夹带在反应器外部的流化床上方的细颗粒,所述细颗粒使用分离器基本上与气体混合物分离,从而将所述流分成(i)一种或多种气流 A)基本上不含在流化床的下部和/或下部冷却并重新引入的固体颗粒,和(ii)一种或多种气流(B),其包含至少部分所述颗粒,其被引入 或以上流化床,该方法的特征在于,包含固体颗粒的气流(B)中的至少一个通过简单的点的稀相输送直接引入流化床 e,也就是说,优选地不使用用于设置运动的设备。

    Process for polymerization of alpha-olefin
    45.
    发明申请
    Process for polymerization of alpha-olefin 审中-公开
    α-烯烃聚合方法

    公开(公告)号:US20030199646A1

    公开(公告)日:2003-10-23

    申请号:US10414025

    申请日:2003-04-16

    Inventor: Katsutoshi Kougo

    Abstract: The object of the present invention is to provide a polyolefin polymerization method which prevents fine particles of polymer from scattering from a fluidized bed in a gas phase polymerization reactor. This object is achieved by a process for polymerization of null-olefin in multi-stage polymerization process and in at least two serially arranged polymerization reactors including a gas phase polymerization reactor, the process comprising; drawing out polyolefin particles from a polymerization reactor, and transferring the polyolefin particles into the interior of fluidized bed of a gas phase polymerization reactor of the next stage.

    Abstract translation: 本发明的目的是提供一种聚烯烃聚合方法,其防止聚合物细颗粒在气相聚合反应器中从流化床散射。 该目的通过多级聚合方法中的α-烯烃聚合方法和包括气相聚合反应器在内的至少两个串联排列的聚合反应器中实现。 从聚合反应器中抽出聚烯烃颗粒,并将聚烯烃颗粒转移到下一阶段的气相聚合反应器的流化床的内部。

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