Patent ID: 9192905
Filing Date: 2015-11-24
Classification: B01J,C08F

Abstract:
1. Reactor assembly for the production of polymers including a fluidized bed reactor ( 1 ) comprising a bottom zone ( 5 ), a middle zone ( 6 ) and an upper zone ( 7 ), an inlet ( 8 ) for the fluidization gas located in the bottom zone ( 5 ), an outlet ( 9 ) for the fluidization gas located in the upper zone ( 7 ); the outlet ( the equivalent cross-sectional diameter of the bottom zone ( the middle zone ( the equivalent cross-sectional diameter of the upper zone ( wherein the ratio of the height of the fluidized bed reactor to the equivalent cross-sectional diameter of the middle zone of the fluidized bed reactor is from 2 to 10; and wherein the boundary plane delimiting bottom zone and middle zone is the plane, where the equivalent cross-sectional diameter changes from increasing values to essentially constant values; and wherein the boundary plane delimiting middle zone and upper zone is the plane, where the equivalent cross-sectional diameter changes from essentially constant values to decreasing values; and wherein there is an unobstructed passageway in the direction of flow of the fluidization gas through the fluidized bed reactor from the bottom zone ( whereby the fluidized bed reactor does not have a distribution plate.