Pressure Swing Adsorption Nitrogen Production Method

摘要

The present invention relates to a method for producing high purity nitrogen from raw material air by pressure swing adsorption using a zeolite molecular sieve as an adsorbent, wherein air is supplied to the desorbed adsorption tower to increase pressure, The present invention relates to a method for producing high purity and nitrogen by preliminarily washing with a cantilever exhaust gas of another column immediately after the adsorption amount is increased and after the adsorption of atmospheric pressure is finished.