Meanwhile Dalian plant molecular sieve, bed gas phase enriched nitrogen gas through the bed of a product, each step even for loop operations. PSA process cycle operations include: pressurized gas production; grading; buck, exhaust; then pressurized gas production; ...... zeolite plant several working stages, the formation of cyclic operation. Depending on the method of its regeneration process can be divided into vacuum regeneration regeneration processes and atmospheric processes. 5, the operating pressure of the carbon molecular sieve while kinetic effects, but also has equilibrium adsorption effect, high partial pressure of the adsorbate, the adsorption capacity is high, and therefore the adsorption pressure is advantageous, but the adsorption pressure is too high, the selected air compressor type requirements are increased, while atmospheric regeneration and regeneration of the two processes of adsorption vacuum pressure requirements are different, integrated all the factors, the proposed regeneration atmospheric pressure adsorption process selected 5 ~ 8Kg / cm2 appropriate; adsorption process vacuum regeneration pressure selected as 3 ~ 5Kg / cm2 appropriate. Jiangsu sieve sieve plant manufacturers _ _ 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!