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How does a nitrogen generator produce nitrogen gas?
When the nitrogen generator produces nitrogen,due to the different diffusion rates of oxygen and nitrogen gas molecules on the surface of the molecular sieve,smaller gas molecules(O2)have a faster diffusion rate,more enter the micropores of the carbon molecular sieve,and larger gas molecules(N2)have a slower diffusion rate,resulting in less entry into the micropores of the carbon molecular sieve.The selective adsorption difference between nitrogen and oxygen using carbon molecular sieves results in the enrichment of oxygen in the adsorption phase and nitrogen in the gas phase in a short period of time.In this way,oxygen and nitrogen are separated to obtain the gas phase enriched nitrogen under PSA conditions.After a period of time,the adsorption of oxygen by the molecular sieve reaches equilibrium.Based on the different characteristics of carbon molecular sieve in adsorbing gas at different pressures,reducing the pressure allows the carbon molecular sieve to remove the adsorption of oxygen,and this process is called regeneration.The nitrogen gas was collected like this.
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