公开(公告)号：US10792637B2

公开(公告)日：2020-10-06

申请号：US16477283

申请日：2017-12-15

申请人： BASELL POLIOLEFINE ITALIA S.R.L.

发明人： Enrico Balestra ,  Tiziana Caputo ,  Massimo Covezzi ,  Maurizio Dorini ,  Antonio Mazzucco ,  Gabriele Mei ,  Ricardo Rinaldi

IPC分类号： B01J8/24 ,  B01J8/18 ,  C08F2/01 ,  C08F2/44

摘要： A fluid is fed into a polymer bed of a fluidized bed gas phase polymerization reactor by introducing the fluid into the polymer bed through a distributor protruding into the fluidized bed zone of the reactor and terminating with a discharge end positioned so that the following equation is fulfilled: d/D>0.002 wherein d is the distance of the distributor's discharge end from the wall of the reactor, and D is the diameter of the reactor in the fluidized bed zone.