PSA PROCESS

PSA OXYGEN and NITROGEN GENERATORS OPERATION PRINCIPLE
 
Oxygen and nitrogen generators that work on PSA principle are fed with treated compressed air. Compressed air is fed to one of the adsorber tanks of the generator. The nitrogen (in case of oxygen production) or the oxygen (in case of nitrogen production) in the air is cought by the adsorber substance (molecular sieve) while the compressed air passes through the tank. Hence, the purified nitrogen or the oxygen gas goes out of the tank.
The air feed is made to the other adsorber tank when the adsorber substance (molecular sieve) is saturated. The saturated adsorber substance (molecular sieve) releases the nitrogen or the oxygen it holds to surrounding air by sudden drop of pressure and gets ready for production again. A small portion of the produced gas is used for regeneration. The adsorber substance (molecular sieve) needs no auxiliaries to regenerate. This cycle is repeated 7 days and 24 hours.
 
PSA system operation principle