Working Principle of Pure Nitrogen Production Plant
Pure Nitrogen Production Plant: Guided by the pressure swing adsorption (PSA) principle, high - performance carbon molecular sieves are utilized as the adsorbent. Under a specific pressure, due to kinetic effects, oxygen and nitrogen exhibit significantly different diffusion rates on carbon molecular sieves. Oxygen molecules are extensively adsorbed by the carbon molecular sieves, while nitrogen molecules get concentrated in the gas phase, thus achieving the separation of oxygen and nitrogen.
Given that the oxygen - adsorption capacity of carbon molecular sieves changes distinctly with pressure, lowering the pressure enables the release of the oxygen molecules adsorbed on the sieves, rejuvenating the sieves for cyclic reuse.
A two - adsorption - tower configuration is used: one tower engages in adsorption to generate nitrogen, while the other undertakes desorption and regeneration. By alternating cyclically, they continuously yield high - quality nitrogen.
Product Pictures of Pure Nitrogen Production Plant
Technological Process
Screw - Type Air Compressor
Air, functioning as the feedstock, is gathered and compressed to 8 bar via the screw - type compressor.
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Refrigerated Air Dryer
In the standard configuration, this dryer eliminates moisture and particulate impurities from the air, enabling the air's dew point to attain -23℃. Intermediate setups utilize an adsorption dryer, reducing the dew point to -40℃, whereas advanced configurations employ a combined dryer that achieves a dew point of -63℃.
02
A/T/C Three - Stage Precision Filter
This filter undertakes the removal of oil, dust, and other contaminants through a three - stage filtration sequence.
03
Air Buffer Tank
It stores pure, dry air, furnishing a consistent supply for the subsequent adsorption - driven separation of oxygen and nitrogen from the air (the raw material).
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