Patent ID: 9399608
Filing Date: 2016-07-26
CPC Classification: B01D,B01J,C07C,C08F

Claim Text:
1. A process for the recovery of ethylene from a polymerization product stream of a polyethylene production system, the process comprising: separating a light gas stream from the polymerization product stream in a flash tank, wherein the light gas stream comprises ethane and unreacted ethylene; routing the light gas stream from the flash tank to an absorption solvent system; contacting the light gas stream with the absorption solvent system, wherein the contacting the light gas stream with the absorption solvent system occurs at a temperature in a range of from about 40° F. to about 110° F., wherein at least a portion of the unreacted ethylene from the light gas stream is absorbed by the absorption solvent system; and recovering unreacted ethylene from the absorption solvent system to yield recovered ethylene.