Method of recovering energy in the manufacture of polymers...

Details Method of recovering energy in the manufacture of polymers... Method of recovering energy in the manufacture of polymers...

B - Operations, Transporting

01

J

23/379, 402/604

B01J 12/02 (2006.01) B01J 8/00 (2006.01) B01J 19/26 (2006.01) C08F 2/34 (2006.01) C08F 10/02 (2006.01) C08F 110/02 (2006.01) C08J 11/00 (2006.01)

Patent

CA 1118146

ABSTRACT In a method of recovering energy in the manufacture of high-pressure polyethylene from ethylene gas, the ethylene gas is compressed and partially converted into polyethylene in a reactor by polymerization. For the purpose of energy recovery, the polymer-gas mixture being discharged from the reactor is accelerated and decompressed in a nozzle system of an energy exchange unit, mixed and compressed with an almost polymer-free working stream, after which the polymer-free gas is separated in a separator, the working stream flows through a decompression turbine, and is subsequently conveyed together with the polymer-gas mixture from the reactor into the nozzle system of the energy exchange unit and is continuously recompressed in the energy exchange unit by the gas stream from the decompression turbine.

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