Three-stage membrane gas separation process and system

Details Three-stage membrane gas separation process and system Three-stage membrane gas separation process and system

1990-12-10

1992-04-07

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 66, 55 68, 55158, B01D 5322

Patent

active

051024322

ABSTRACT:
Very high purity nitrogen is produced by air separation in a three stage membrane system in which the third stage permeate is recycled to the second stage and the membrane surface area is distributed between the stages to achieve high product recovery and process performance. Other gas separations, such as argon from oxygen, can likewise be achieved by thus using a three stage membrane system.

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