PSA nitrogen plant design basis

   Adsorption matrix for all types of adsorbents, such as: aluminum plastic, silicone, 3a zeolite molecular sieves activated carbon and molecular sieves.  Among PSA nitrogen means they use various types of molecular sieve adsorbents (zeolites, carbon molecular sieves), various types of molecular sieves have specific selective adsorption, such as nitrogen is often used 3A carbon molecular sieve oxygen, and adsorption H20, C02 multi-use 13X zeolites.  PSA Nitrogen Generator works: clean pressurized air (oxygen and nitrogen mixed gas) through some sort of carbon molecular sieve, most of the remaining traces of oxygen and water is a molecular sieve adsorption, adsorption of nitrogen is unable to be discharged This nitrogen adsorption stage.   While reducing the pressure to atmospheric or subatmospheric pressure, the adsorption capacity of the molecular sieve oxygen decreased oxygen which is resolved in a compressed state of the adsorbed water and the regeneration is parsed (oxygen) phase.  Molecular sieves can be parsed and nitrogen adsorption phase of the next cycle, the cycle is repeated to obtain a certain purity of nitrogen, while some of the purity of the oxygen enriched air.