Oxygen Molecular Sieve

Pressure Swing Adsorbtion (PSA) is the most commonly used non-cryogenic oxygen production process, most effective for small and medium capacities. The process operates by using two columns filled with molecular sieve. Pre-treated compressed air enters the first column and follows up through the Zeolite. Nitrogen and some other gases are being trapped while the oxygen is allowed to flow through. The generator produces constant flow of purified oxygen.

Cryogenic air separation processes are routinely used in medium to large scale plants to produce nitrogen, oxygen, and argon as gases and/or liquid products. Cryogenic air separation is the preferred technology for producing very high purity oxygen and nitrogen. It is the most cost effective technology for high production rate plants.  All plants producing liquefied industrial gas products utilize cryogenic technology.


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