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| ON-SITE OXYGEN GENERATORS | ||
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R2 GAS Ltd oxygen generators operate on the Pressure Swing Adsorption ( PSA ) principle to produce a continuous oxygen flow from compressed air.
The system consist of two series of extruded aluminium towers, filled with specially treated "zeolite" (*) in order to adsorb the Nitrogen molecules.
A pre-treated compressed air flow goes through the towers from Zeolite bottom, up through. Nitrogen is adsorbed by the Zeolite, thus oxygen get to the cylinders top where it is collected in a buffer vessel. The working columns serie is "on-line" for a pre-set period of time. When it is almost saturated with adsorbed gases, the system automatically turns the columns into regenerative mode, where the internal contents of the columns is vented out into atmosphere. The second Zeolite columns serie is then put on-line condition and starts the filtration process. The system of columns in pair switches between separation and regeneration modes, allowing a continuous oxygen output flow directly to the customer pipeline, with production up to tens of cubic meters per hour and a purity level up to 98%.
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(*)The "heart" of an oxygen generator is a porous material known as zeolite which works using adsorption principle. adsorption is a phenomenon in which gas molecules stick temporarily to surfaces: some molecules stick better than others to each surface, a fact that makes it possible to use adsorption to separate various molecules one from another.
Zeolites tend to concentrate oxygen in the air by removing most of the nitrogen molecules. The zeolites adsorb most of the nitrogen in this air, leaving nearly pure oxygen. This oxygen goes straight to the buffer vessel ready to be used.
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