Separation of low-boiling gases using super-glassy membranes

Details Separation of low-boiling gases using super-glassy membranes Separation of low-boiling gases using super-glassy membranes

1996-02-29

1997-11-18

Spitzer, Robert

Gas separation: processes

Selective diffusion of gases

Selective diffusion of gases through substantially solid...

95 45, B01D 5322

Patent

active

056883072

ABSTRACT:
A process for separating hydrocarbon gases of low boiling point, particularly methane, ethane and ethylene, from nitrogen. The process is performed using a membrane made from a super-glassy material. The gases to be separated are mixed with a condensable gas, such as a C.sub.3+ hydrocarbon. In the presence of the condensable gas, improved selectivity for the low-boiling-point hydrocarbon gas over nitrogen is achieved.

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