NITROPOWER Generator Operating Principle
NITROPOWER nitrogen generators operate on the PSA (Pressure Swing Adsorption) principle. The generators are based on a set of steel adsorbers filled with a special adsorbent — a carbon molecular sieve. This specially prepared material has pores of a size that preferentially absorb (adsorb) oxygen, allowing the air passing through the adsorber to be enriched with nitrogen.
The pre-dried and purified compressed air enters the generator and passes through the adsorbers in an upward direction, from bottom to top. Nitrogen molecules poorly penetrate the pores of the adsorbent, so they pass through the adsorber and enter the product line, while oxygen accumulates in the adsorbent.
Due to the limited oxygen absorption capacity of the adsorbent, NITROPOWER generators automatically switch the operating mode of the adsorbers so that one group of adsorbers absorbs oxygen while the other is being regenerated. During regeneration, the pressure in the adsorber drops and the accumulated oxygen is released to the atmosphere. The adsorbers are cyclically switched to ensure continuous nitrogen generation.