
PSA process 5 main stages
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 Compressed air (78% nitrogen, 21% oxygen, < 1% argon)
 Filtered, degreased and dried, production pressure automatically regulated.
 Passing through the molecular sieve, the nitrogen is adsorbed by the zeolite, increasing the oxygen concentration to 95%.
 The oxygen produced from the molecular sieve is fed to the buffer tank via a multifunctional block.
 The nitrogen is released through a silent exhaust port and forced back to the outside.
 Part of the oxygen produced is used to help desorb nitrogen from one container, while the other ensures oxygen production.
 The automatic and pneumatic container balancing system ensures a continuous oxygen flow.
psa oxygen generators – up to 95% purity
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PSA O2 units are used in a variety of industries and environments. In healthcare, these units are essential for producing medical-grade oxygen used in hospitals, clinics and ambulances. They also serve industries such as metalworking, glassmaking and wastewater treatment that require oxygen for combustion, oxidation or biological processes.
NEWTEK can provide small units that produce a few cubic meters of oxygen per hour to large industrial plants capable of producing thousands of cubic meters of oxygen. They can be customized to meet different needs and integrate seamlessly into existing infrastructure.

What is the difference between the production methods of PSA oxygen plants and liquid oxygen plants?
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PSA oxygen plants: Through PSA technology, the molecular sieves have different adsorption characteristics for nitrogen and oxygen in the air to separate air and produce oxygen. This process is a physical change and does not involve phase change.
Liquid oxygen plant: The air is cooled to liquid through an air separation unit (ASU), and then the different boiling points of nitrogen and oxygen (the boiling point of liquid nitrogen is about -196°C, and the boiling point of liquid oxygen is about -183°C) are used to separate oxygen by distillation. This process involves the liquefaction of air and is a phase change process in physical change.
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