Processes for lifting spent catalyst into a regenerator in an oxygenate to olefins reaction system
    7.
    发明申请
    Processes for lifting spent catalyst into a regenerator in an oxygenate to olefins reaction system 有权
    将废催化剂提升到含氧化合物到烯烃反应体系中的再生器的方法

    公开(公告)号:US20060135836A1

    公开(公告)日:2006-06-22

    申请号:US11050199

    申请日:2005-02-03

    IPC分类号: C07C1/00

    摘要: This invention provides processes for transporting catalyst, preferably in an oxygenate to olefins reaction system. In one embodiment, an oxygenate contacts molecular sieve catalyst particles in a reactor under conditions effective to form an effluent stream comprising light olefins and forming coked catalyst particles. At least a portion of the coked catalyst particles are transported from the reactor or a device associated therewith to a catalyst regenerator through a conduit in a fluidized manner with a fluidizing medium comprising air and steam. At least a portion of the coked catalyst particles are regenerated in the catalyst regenerator to form regenerated catalyst particles, which are ultimately directed back to the reactor.

    摘要翻译: 本发明提供了将催化剂,优选在含氧化合物转化为烯烃反应体系的方法。 在一个实施方案中,含氧化合物在有效形成包含轻质烯烃和形成焦化催化剂颗粒的流出物流的条件下在反应器中与分子筛催化剂颗粒接触。 焦化的催化剂颗粒的至少一部分从反应器或与其相关的装置通过管道以流化方式通过导管从包含空气和蒸汽的流化介质输送到催化剂再生器。 焦化催化剂颗粒的至少一部分在催化剂再生器中再生以形成再生的催化剂颗粒,其最终被引导回反应器。

    Minimizing catalyst backflow in fluidized bed reactors
    8.
    发明申请
    Minimizing catalyst backflow in fluidized bed reactors 有权
    最大限度地减少流化床反应器中的催化剂回流

    公开(公告)号:US20060073083A1

    公开(公告)日:2006-04-06

    申请号:US10958803

    申请日:2004-10-05

    IPC分类号: B01J8/18

    摘要: This invention provides feed introduction devices, and processes for using same, which minimize catalyst clogging. In particular, the invention is to a feed introduction device having a first end in fluid communication with a feed source, a second end in fluid communication with a reactor and a deviation zone between the first end and the second end to deviate the flow of feed about a deviation angle from the first end toward the second end. According to the invention, the deviation angle is greater than 90 degrees.

    摘要翻译: 本发明提供了进料引入装置及其使用方法,其使催化剂堵塞最小化。 特别地,本发明涉及一种进料引入装置,其具有与进料源流体连通的第一端,与反应器流体连通的第二端和第一端与第二端之间的偏离区,以偏离进料流 围绕从第一端朝向第二端的偏离角度。 根据本发明,偏差角大于90度。

    Catalyst regenerator for reducing entrained catalyst loss and processes for using same
    10.
    发明申请
    Catalyst regenerator for reducing entrained catalyst loss and processes for using same 失效
    用于减少夹带催化剂损失的催化剂再生器及其使用方法

    公开(公告)号:US20050043577A1

    公开(公告)日:2005-02-24

    申请号:US10646240

    申请日:2003-08-22

    摘要: The present invention is directed to a swaged catalyst regenerator and processes for using the catalyst regenerator. In one embodiment, the swaged catalyst regenerator includes a regeneration zone having a first major diameter and into which a regeneration medium and an at least partially coked catalyst from a reactor can be fed. The catalyst regenerator also includes a separation zone having a second major diameter. The separation zone is provided to separate entrained catalyst from gaseous components, e.g., combustion products of a regeneration process, and return the entrained catalyst to the regeneration zone. The ratio of the second major diameter to the first major diameter is at least 1.1, 1.4, 1.7, 2.0, 2.3, 2.6 or 2.9. By providing a catalyst regenerator having these characteristics, desirable regeneration characteristics that minimize entrained catalyst loss can be achieved.

    摘要翻译: 本发明涉及一种模压催化剂再生器和使用该催化剂再生器的方法。 在一个实施方案中,模锻的催化剂再生器包括具有第一大直径的再生区,再生介质和来自反应器的至少部分焦化的催化剂可以进料到该再生区中。 催化剂再生器还包括具有第二大直径的分离区。 提供分离区以将夹带的催化剂与气态组分(例如再生过程的燃烧产物)分离,并将夹带的催化剂返回到再生区。 第二大直径与第一大直径的比率至少为1.1,1.4,1.7,2.0,2.3,2.6或2.9。 通过提供具有这些特性的催化剂再生器,可以实现使携带的催化剂损失最小化的期望的再生特性。