5 Notes edit most manufacturers of carbon molecular sieve is not much difference in appearance Shanghai zeolite manufacturers, users rely on observation of molecular sieve appearance is difficult to distinguish in the end are imported or domestically produced zeolite molecular sieves. But there is little, if at the time of purchase of equipment, the manufacturers claim that using high-quality imported Shanghai 3a molecular sieve zeolite, but the price is far lower than the market price, then Shanghai sieve, then beware. Buy sell fine, equipment manufacturers are unlikely to sell equipment at a loss. Zeolites buy domestically built equipment is not terrible Shanghai 4a molecular sieve, but it took the price of imported zeolite molecular sieve has bought domestically, that a big loser. At the same time, the bed gas phase enriched nitrogen gas through the bed a product, each step even for loop operations. PSA process cycle operations include: pressurized gas production; grading; buck, exhaust; then pressurized gas production; ...... 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. Shanghai plant molecular sieve, sieve Shanghai, there are new new molecular sieve zeolite 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!