PSA nitrogen production, also known as carbon molecular sieve air separation nitrogen production, is based on this principle, using air as raw material, carbon molecular sieve as adsorbent, using pressure swing adsorption principle, using carbon molecular sieve selective adsorption of oxygen and nitrogen, to achieve the separation of nitrogen and oxygen in the air and produce nitrogen.

      PSA nitrogen production is characterized by simple process, high automation, fast gas production (15-30 minutes), low energy consumption, high product purity, wide range of purity adjustment according to user needs, convenient operation and maintenance, low operation cost, and strong adaptability of the device. Small and medium-sized nitrogen users below 3000nm3 / h are widely used. PSA nitrogen production has become a method for small and medium-sized nitrogen users.