Patent ID: 8790579

Claim:
A polymerization system comprising: (a) a polymerization reactor, (b) a continuous catalyst activator comprising: a fluidized bed, wherein the continuous catalyst activator comprises: (1) a substantially horizontal fluidized bed vessel; (2) a gas distributor plate extending substantially horizontal within the fluidized bed vessel being arranged to allow passage of a fluidizing gas throughout the fluidized bed vessel; (3) an inlet for introducing a catalyst into the fluidized bed vessel; (4) at least one zone dividing wall for dividing the fluidized bed vessel into a plurality of zones, at least one of the zone dividing walls comprising a zone opening that allows the catalyst to be introduced into a next downstream zone, the plurality of zones being located substantially horizontal in relation to one another; and (5) each zone comprising at least one baffle, each baffle defining a stage, each zone comprising a lower boundary that comprises at least a portion of the gas distributor plate, and (c) a controller programmed with an algorithm to control a polymerization reactor process variable by adjusting a continuous catalyst activator process variable, and wherein at least one of the following conditions is satisfied: the continuous catalyst activator further comprises a filter apparatus adapted to remove any catalyst particles entrained in the fluidizing gas; and/or the polymerization system further comprises an inlet titanation agent disperser.