PRESSURE SWING ADSORPTION (PSA)
An economical alternative technology
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PSA (Pressure Swing Adsorption) is an economical alternative for Onsite production of Oxygen for Medical use and is in use for over 30 years in the medical industry.
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Ambient air entering the compressors is 78% nitrogen, 21% oxygen, less than 1% argon and other gases.
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As nitrogen is separated, the resulting product gas is up to 95.5% oxygen purity.
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PSA process comprises of Zeolite filled towers and is based on the fact that different gases have the property to be attracted to different solid surfaces more or less strongly. This happens with nitrogen, which is attracted to the zeolites. As the air is compressed, the nitrogen is forced into the crystalline cages of the zeolite, and the oxygen is less adsorbed and conveyed to the end of the zeolite bed and ultimately recovered in the oxygen buffer tank.
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Two zeolite beds are used together: One filters air under pressure until it gets saturated with nitrogen while oxygen passes through. The second filter begins to do the same while the first one is regenerated as nitrogen is expulsed (desorbed) by releasing the pressure. The process repeats again, storing the oxygen in a tank.
OXYGEN PLANT
ESSENTIAL BLOCKS
The Oxygen system consists of the following:
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Screw type Air Compressor with Refrigeration Dryer
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Multistage Coalescing type Oil filters to purify Air, Oil content below 0.001 ppm
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Air Receiver
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Oxygen Generator with PLC Control & Oxygen Analyzer
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Oxygen Buffer Tank
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Micro & Bacterial ltration unit
SAFETY INTERLOCKS
Be Safe
The generator is equipped with Online Digital Analyzer to measure Oxygen purity before it goes to
Buffer tank. If purity falls below set points, the Oxygen supply to storage tank stops & alarm signal is
displayed to indicate generator malfunction.
Drop in purity also signals for the gas supply to be diverted to the backup Oxygen supply. This is done
automatically by the switchover panel. It closes Auto-shut-off valve in Oxygen supply line & actuates
reserve cylinder Oxygen supply valve to maintain continuous Oxygen supply.
Pressure in Oxygen Buffer tank is continuously Oxygen Buffer vessel pressure falls below 3.5 Bar, an
alarm is sounded. monitored by Pressure Transmitter. Whenever Drop in buffer vessel pressure also
activates the reserve supply system to be activated automatically through the switchover panel.
Features
Only the Best
We have strict standards when it comes to our manufacturing process, and never settle for less. We’re constantly innovating and improving to meet the latest needs of our clients, and do whatever it takes to ensure complete satisfaction.
24/7 Customer Service
How We Operate
For years, we’ve been proud to be recognized as the leader in our industry. To stay on top, we’ve worked with various field professionals to make sure everything we produce represents the quality and responsible manufacturing process we believe in.