N2 is lower than the feed gas pressure 0.1Mpa temperature: ≤40 ℃ system constitutes PSA-N2-refining apparatus with a mixer, a catalytic reactor, an aftercooler, a cyclone, filter, adsorption dryer, oxygen analyzer, flow meter and product nitrogen buffer tank components. Flow diagram. According to the continuous monitoring of the actual oxygen content Unalis desiccant, adjusted into the feed gas with the amount of hydrogen. In order to achieve the minimum excess hydrogen, using specially designed by the mixing device and hydrogen control system with high precision. Mixture then enters a catalytic reactor Kunshan desiccant, hydrogen and oxygen in an exothermic reaction within the reactor, is converted to steam. After an after-cooler can condense most of the water vapor, and a water separator was removed through efficient condensate. Then depending on the desired product gas dew point, or by a cold and dry adsorption dryer for drying. Need to use a desiccant dryer available when cold and dry atmospheric dew point of -25 ℃ products Ningbo desiccant air, dew point lower than -40 ℃. Product gas purity oxygen analyzer through continuous monitoring. Vent gas purity is lower than when the product to customer requirements. The entire system all through the controlled operation without operator. Shanghai has a new molecular sieve - carbon molecular sieve reference parameter editing Formula: Na2O · Al2O3 · 2SiO2 · 9 / 2H2O Al ratio: SiO2 / Al2O3≈2 effective aperture: about 4 [2] index unit sphere strip specifications mm 0.5-1.0? 3-5 1.6 3.2 1.6-2.5 Water adsorption (25 ℃, RH50%)% wt ≥21.5 ≥21.5 ≥21.5 ≥21 ≥21 attrition rate% wt ≤0.2 ≤0.2 ≤0.2 ≤0.25 ≤0.25 bulk density g / ml 0.69 -0.75 ≥0.69 ≥0.69 ≥0.70 ≥0.65 compressive strength N / ≥30 ≥80 ≥40 ≥70 packaging moisture (575 ℃, 3 小时)% wt ≤1.5 ≤1.5 ≤1.5 ≤1.5 ≤1.5 methanol adsorption capacity mg / g ≤140 ≤140 ≤140 ≤140 ≤140 3 architecture Commentary editor Ningbo desiccant, desiccant, there is a new new zeolite molecular sieves by Shanghai Limited. Shanghai new molecular sieve Limited (www.molsionms.com) strong, credible, in Shanghai's Songjiang District elemental industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the new molecular sieves, and you hand in hand into the brilliant, for a better future!