SEPARATING COMPONENTS IN POLYMERIZATION Russian patent published in 2017 - IPC B01D53/00 

FIELD: chemistry.

SUBSTANCE: method of separating components in the system for producing polymers, comprising the polymerization products flow separation into the gas stream and the polymer stream. The gas stream comprises ethane and unreacted ethylene, gas stream distillation with obtaining the light hydrocarbons stream comprising ethane and unreacted ethylene, bringing the stream of light hydrocarbons in contact with the absorbent solvents system. At least part of the unreacted ethylene from the stream of light hydrocarbons is absorbed by the absorbent solvents system, and the exhausted gases stream is extracted from the absorbent solvents system. The exhausted gases stream comprises ethane, hydrogen, or combinations thereof.

EFFECT: increased separation efficiency.

10 cl, 13 dwg, 3 tbl