Patent ID: 9598514
Date: 2017-03-21
CPC Classifications: B01D,B01J,C07C,C08F,C08J,Y02P

Claim:
1. A process for component separation in a polymer production system, comprising: polymerizing olefin monomers in a first polymerization reactor to yield a mid-polymerization product stream; flashing, in a flash tank, the mid-polymerization product stream to yield a mid-polymer stream; distilling a vapor stream recovered from the flash tank to yield a mid-gas stream; and polymerizing the mid-polymer stream in a second polymerization reactor, wherein the mid-polymerization product stream comprises hydrogen, ethane, unreacted ethylene, isobutane, and polyethylene, wherein the mid-polymer stream comprises the polyethylene and the isobutane, and wherein the mid-gas stream comprises the unreacted ethylene and the ethane.