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Could I know more about PSA oxygen generator?

Could I know more about PSA oxygen generator?
Update Time:2015-08-14

Advances in technology have provided industrial oxygen generator systems for use where air is available and a higher concentration of oxygen is desired.

Pressure swing adsorption (PSA) incorporates a material called molecular sieve for gas separation. In the case of oxygen generation a zeolite-based sieve forces preferential adsorption for nitrogen. Clean, dry air is passed through the sieve beds on the oxygen generator, producing an oxygen-enriched gas.

Nitrogen separation membrane equipment is also used.PSA generators provide a cost-efficient source of oxygen. They are a safer,less expensive,and more convenient alternative to tanks of cryogenic oxygen or pressurised cylinders. They can be used in various industries including medical, pharmaceutical production, water treatment and glass manufacture.PSA generators are particularly useful in remote or inaccessible parts of the world or mobile medical facilities (military hospitals, disaster facilities).