Monomer recovery process

Details Monomer recovery process Monomer recovery process

1997-01-24

1998-06-23

Spitzer, Robert

Gas separation: processes

Compressing and indirect cooling of gaseous fluid mixture to...

95 50, 95247, 95258, 95266, 585818, B01D 5322

Patent

active

057699275

ABSTRACT:
A process for treating a purge vent stream from a polymer manufacturing operation, the vent stream containing a polymer, such as ethylene or propylene, and a purge gas, such as nitrogen. The invention involves three separation steps: condensation, flash evaporation and membrane separation. The steps are integrated together in such a way as to provide a good separation between the components, and to avoid creation of secondary streams that need additional treatment.

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R.W. Baker and M. Jacobs, "Improve Monomer Recovery from Polyolefin Resin Degassing," Hydrocarbon Processing, Mar. 1996.

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