PROCESS AND SYSTEM FOR TRANSFERRING POLYMER PARTICLES BETWEEN POLYMERIZATION ZONES ARRANGED IN SERIES

Claims

A process is provided for transferring a product from a first polymerization zone (101) to a second polymerization zone (301) arranged in series with the first polymerization zone (101).The process comprises: discharging a product from the first polymerization zone (101) from the first polymerization zone (101); separating the product into a gaseous phase comprising any unreacted monomer and gaseous agent used in the first polymerization zone (101), and a solid phase comprising a polymerization product; and transferring the solid phase to the second polymerization zone (301) through at least one of a first transfer vessel (202) and a second transfer vessel (203) arranged parallel to each other and in selective communication with each other, wherein the at least one of the first transfer vessel (202) and the second transfer vessel (203) are further in selective communication with the second polymerization zone (301), and the second polymerization zone (301) is a gas-phase polymerization zone.