公开(公告)号：US06187878B1

公开(公告)日：2001-02-13

申请号：US09471419

申请日：1999-12-23

申请人： Claudine Viviane Lalanne-Magne ,  Erick Dominique Daire ,  Bruno Patrice Soulier ,  Jean-Pierre Isnard

发明人： Claudine Viviane Lalanne-Magne ,  Erick Dominique Daire ,  Bruno Patrice Soulier ,  Jean-Pierre Isnard

IPC分类号： C08F234

CPC分类号： C08F10/00 ,  Y10S526/901 ,  C08F2/34

摘要： A continuous gas fluidized bed process for the polymerization of olefin monomer(s) wherein the recycled gaseous stream withdrawn from the reactor is divided into two streams (A and B) and that (a) a first stream (A) having been cooled to a temperature at which liquid condenses out is then reintroduced directly into the fluidized bed in the reactor in such a way that, at any time, the condensed liquid is continuously introduced into the bed at a minimum rate of 10 liters of liquid per cubic meter of fluidized bed material per hour, and (b) a second stream (B), which by-passes the above cooling/condensing step, is passed through an exchanger and is then reintroduced into the reactor. The continuous introduction of a liquid into the reactor reduces or even eliminates fouling problems which can be encountered in conventional gas phase olefin polymerization processes.

摘要翻译： 用于烯烃单体聚合的连续气体流化床方法，其中从反应器中排出的循环气流被分成两股流（A和B），和（a）已冷却至 液体冷凝出的温度然后直接重新引入反应器中的流化床，使得在任何时候，冷凝的液体以每立方米流化床10升液体的最小速率连续引入床中 每小时的床料，和（b）通过上述冷却/冷凝步骤的第二料流（B）通过交换器，然后再被引入反应器。 将液体连续引入反应器减少或甚至消除了在常规气相烯烃聚合方法中可能遇到的结垢问题。