We know that the use of the carbon molecular sieve pressure swing adsorption nitrogen are separated by van der Waals forces Dalian molecular sieve oxygen and nitrogen, and therefore, the larger the specific surface area of ??the molecular sieve, the more uniform pore size distribution, and the more the number of the cell or sub-micropores, adsorption the greater the amount; while zeolite pore size can be as small as possible if the van der Waals force fields overlap, for low concentrations of substances also have a better separation. Therefore, PSA nitrogen plant, the performance is directly related to the molecular sieve gas production and consumption sieve proxy equipment package, so zeolite plant, choose a suitable adsorbent is a top priority. 6 Description 4, gas production time according to the diffusion rate of carbon molecular sieve for absorbing oxygen and nitrogen different, O2 adsorption reached equilibrium in a short time, this time, the amount of N2 adsorbed is small, a shorter time gas production, can effectively improve the carbon molecular sieve gas production rate, but also increases the frequency of cutting the door of the action, so the performance of cutting the door is also very important. Generally selective adsorption time of 30 to 120 seconds. Small high purity Nitrogen gas production is recommended to use a short time, a large low-density gas is recommended to use a long time. Sodium zeolite molecular sieve _ _ 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!