Steam cracker gas separation process

Details Steam cracker gas separation process Steam cracker gas separation process

1997-01-24

1998-07-28

Spitzer, Robert

Gas separation: processes

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

95 45, 95 50, 95266, B01D 5322

Patent

active

057857393

ABSTRACT:
The invention is a process for treating a gas stream from ethylene or propylene production, or any other stream containing low molecular weight olefin gases and other hydrocarbons, to separate hydrogen and methane from the C.sub.2+ hydrocarbons. 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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