Patent ID: 8278402
Filing Date: 2012-10-02
Classification: B01J,C08F

Abstract:
1. A reactor system for the catalytic polymerization of olefin monomer and optionally comonomer(s), comprising: one or more inlets for olefin monomer, catalyst, optionally for comonomer, chain growth controllers or chain transfer agents, and/or inert gas, an outlet for gas and an outlet for polymerized particles, wherein the reactor system comprises at least one fluidized bed unit and at least one moving bed unit, wherein the fluidized bed unit comprises means for maintaining a fluidized bed in the fluidized bed unit and wherein the moving bed unit is provided with an inlet and an outlet which are directly connected to the fluidized bed unit, wherein the outlet of the moving bed unit is provided with means for pneumatically displacing polymer particles from the moving bed unit into the fluidized bed unit, wherein the moving bed unit is provided with one or more inlets for separation fluidum inside the moving bed unit at a level of from 0.1 to 0.7 of the total bed level of the moving bed above a base of the moving bed.