Patent ID: 8987390
Filing Date: 2015-03-24
Classification: B01J,C08F,Y10S

Abstract:
1. A polvolefm reactor system comprising: a first reactor configured to produce a first reactor discharge comprising a diluent and a first polyolefin: a diluent separator configured to receive at least a portion of the first reactor discharge and to form a diluent recycle stream comprising diluent and a separator product stream comprising diluent and the first polyolefin, wherein the diluent separator is selected from a hydrocyclone, a wash column and a decanter; a second reactor configured to receive the diluent separator product stream and to produce a second reactor discharge comprising a second polyolefin; and a diluent feed stream configured to introduce fresh diluent to at least one of the diluent separator, the diluent separator product stream, or the second reactor, such that the second reactor has a lower hvdrogen content than the first reactor.