How 95% Pure Oxygen Generator Works

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How Oxygen Pressure Swing Absorption Generators work

Air contains 21% Oxygen, 78% Nitrogen, 0.9% Argon and 0.1% other trace gases. Hi-Tech Oxygen generation systems separate this oxygen from Compressed Air through a unique process called Pressure Swing Adsorption (PSA)

The Pressure Swing Adsorption process for the generation of enriched oxygen gas from ambient air utilises the ability of a synthetic Zeolite Molecular Sieve to absorb mainly nitrogen. While nitrogen concentrates in the pore system of the Zeolite, Oxygen Gas is produced as a product.

Hi-Tech Oxygen generation plant’s use two vessels filled with Zeolite Molecular sieve as absorbers. As Compressed Air passes up through one of the absorbers, the molecular sieve selectively adsorbs the Nitrogen. This then allows the remaining Oxygen to pass on up through the absorber and exit as a product gas. When the absorber becomes saturated with Nitrogen the inlet airflow is switched to the second absorber. The first absorber is regenerated by desorbing nitrogen through depressurization and purging it with some of the product oxygen. The cycle is then repeated and the pressure is continually swinging between a higher level at adsorption (Production), and a lower level at desorption (Regeneration). The whole process is intelligently controlled with help of automated valves and Siemens Make Pre-Programmed PLC.

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