Production of dry, high purity nitrogen

Details Production of dry, high purity nitrogen Production of dry, high purity nitrogen

1989-05-12

1991-04-02

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 26, 55 33, 55 62, 55 68, 55158, 55179, 55387, B01D 5322, B01D 5304

Patent

active

050044826

ABSTRACT:
Wet feed air to, or high purity nitrogen from, a pressure swing adsorption system is dried in a dryer membrane system preferably operated with a countercurrent flow path. Drying is enhanced by the use of a purge gas on the permeate side of the membrane, with waste gas from the pressure swing adsorption system or a portion of the dry, high purity nitrogen product gas being used as purge gas.

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