How PSA Nitrogen Generation Works
Pressure Swing Adsorption (PSA) separates nitrogen from compressed air using carbon molecular sieve (CMS) material. Under pressure, CMS preferentially adsorbs oxygen and other trace gases, allowing high-purity nitrogen to pass through to the outlet. When the sieve is saturated it depressurises (swings), releasing the adsorbed gases and regenerating automatically — twin-column designs do this alternately so nitrogen flow is continuous.
The result is on-site nitrogen generation with no moving parts in the separation stage, very low maintenance requirements, and purity adjustable between 95% and 99.999% by setting the cycle time. A compressed air supply from a screw or piston compressor is the only utility required.
