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    • 5. 发明授权
    • Catalytic reaction chamber for gravity-flowing catalyst particles
    • 用于重力流动催化剂颗粒的催化反应室
    • US4135886A
    • 1979-01-23
    • US822163
    • 1977-08-05
    • Paul J. Kuchar
    • Paul J. Kuchar
    • B01J8/12C10G35/12
    • C10G35/12B01J8/125
    • A catalytic reaction chamber for contacting a reactant stream with catalyst particles which are disposed as an annular-form bed and are downwardly movable therethrough via gravity-flow. The annular bed is formed between a catalyst-retaining screen and a perforated center-pipe. A plurality of vertically-positioned catalyst-transfer, or withdrawal, conduits are circumferentially-disposed substantially adjacent the outer surface of the centerpipe and extend the entire length of the catalyst bed. These contain a plurality of apertures which face into the bed of catalyst particles and which are sized to permit catalyst particles to flow therethrough. The use of these perforated catalyst-transfer conduits serves to alleviate the problems associated with the occurrence of stagnant catalyst areas which result from catalyst particles being "pinned" against the perforated centerpipe within the reaction zone, and unable to assume a downward flow pattern.
    • 用于使反应物流与催化剂颗粒接触的催化反应室,所述催化剂颗粒被设置为环形床,并且可通过重力流向下移动。 环形床形成在催化剂保持屏和穿孔中心管之间。 多个垂直定位的催化剂转移或取出管道基本上邻近中心管的外表面设置并延伸催化剂床的整个长度。 它们包含面向催化剂颗粒床的多个孔,其尺寸设定为允许催化剂颗粒流过其中。 使用这些穿孔的催化剂转移管道用于减轻由于催化剂颗粒被“固定”在反应区内的穿孔中心管上而导致的停滞催化剂区域的发生所引起的问题,并且不能呈现向下的流动模式。