Membrane system for intermittent gas separation

Details Membrane system for intermittent gas separation Membrane system for intermittent gas separation

1982-07-02

1983-12-20

Therkorn, Ernest G.

Gas separation

Means within gas stream for conducting concentrate to collector

55 21, 55 69, B01D 5322

Patent

active

044215290

ABSTRACT:
An improved process for separating gases using a hollow fiber membrane on an intermittent basis is described. It has been found that if the pressure on the feed side of the membrane is maintained essentially constant or is allowed to vary slowly during operation and in the periods between operating cycles the useful lifetime of the separation device is greatly extended. This process is particularly useful for the separation of air into oxygen- and nitrogen-enriched streams using hollow fibers melt spun from poly(4-methylpentene-1).

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R. J. Gardner et al., Chem. Eng. Proc., Oct. 1977, pp. 76-78.

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