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1. 发明授权

US5627243A Fluidized-bed reactor 失效
标题翻译：流化床反应器
公开(公告)号：US5627243A
公开(公告)日：1997-05-06
申请号：US362248
申请日：1994-12-22
申请人： Matti H am al ainen , Isto Eilos , Simo Jortikka , Tuomo Hyv onen
发明人： Matti H am al ainen , Isto Eilos , Simo Jortikka , Tuomo Hyv onen
IPC分类号： B01J8/24 , C08F2/34 , C08F10/00
CPC分类号： B01J8/1827 , B01J8/1872 , C08F10/00 , Y10S526/901
摘要： The invention relates to a fluidized-bed reactor for polymerization of olefins, said reactor comprising an upper section of the reactor acting as a polymerization space in which olefin monomers are polymerized in a fluidized bed formed by polymerizing particles and a lower section of the reactor acting as a mixing space through which circulating gas removed from the top of the polymerization space is passed to the fluidized bed contained in the lower part of the polymerization space through a horizontal gas distributor plate in order to maintain the fluidized state of the bed, in which arrangement the circulating gas is passed to the lower section of the reactor via one or more inlet nozzles and the bottom section of the reactor is additionally provided with means for directing the circulating gas. At least part of said means for directing the circulating gas flow is comprised of flow control elements formed by plate-like surfaces perforated with a number of holes and located so that a major part of the gas flow is directed sideways below said means and a minor part of the gas flow is directed upwards to pass through said holes in said means.
摘要翻译：本发明涉及一种用于烯烃聚合的流化床反应器，所述反应器包括作为聚合空间的反应器的上部，其中烯烃单体在通过聚合颗粒形成的流化床中聚合，反应器的下部作用作为从聚合空间顶部除去的循环气体通过水平气体分布板通过聚合空间的下部的流化床的混合空间，以保持床的流化状态，其中循环气体经由一个或多个入口喷嘴传送到反应器的下部，并且反应器的底部部分另外设置有用于引导循环气体的装置。用于引导循环气体流的所述装置的至少一部分包括由具有多个孔的板状表面形成的流动控制元件，并且定位成使得气流的主要部分被指向在所述装置下方并且较小的气流的一部分向上引导通过所述装置中的所述孔。

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