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AssigneeUnivation Technologies, LLC
InventorsFathi D. Hussein, Ping Cai, Jose F. Cevallos-Candau, Ian D. Burdett, W. Scott Hamilton, Daniel N. Thomas, JR.
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A process for the polymerization of olefin's, including: introducing an olefin and a polymerization catalyst into a polymerization reactor to form a polyolefin, the polymerization reactor including: a fluidized bed region having a top and a bottom; and a motive bed region; wherein a first end of the motive bed region is fluidly connected to the top of the fluidized bed region; and wherein a second end of the motive bed region is fluidly connected to the bottom of the fluidized bed region; and wherein a diameter of the fluidized bed region is greater than a diameter of the motive bed region; circulating at least a portion of the olefin, the catalyst, and the polyolefin through the fluidized bed region and the motive bed region; maintaining a dense-phase fluidized bed within the fluidized bed region; recovering polyolefin from the fluidized bed region, is provided. A reactor system directed to the process is also provided.
A process for the polymerization of olefins, comprising:
The process of any one of the preceding claims, further comprising feeding at least one of a co-catalyst, a co-monomer, a catalyst activator, an antistatic agent, a solvent, an induced condensing agent, and an inert gas to the reactor.
The process of any one of the preceding claims, wherein the olefin comprises at least one of ethylene, propylene, butene, hexene, and octene.
The process of any one of the preceding claims, wherein the olefin is introduced to the polymerization reactor at a location in the motive bed region.
The process of any one of the preceding claims, wherein the catalyst is introduced to the polymerization reactor at a location in the fluidized bed region.
The process of any one of the preceding claims, wherein the circulating comprises maintaining a superficial gas velocity in the fluidized bed region such that from about 1 to about 99 percent of particles in the polymerization reactor remain in the fluidized bed region.
A reactor system comprising:
Dependencies are inferred from the claim text.