The gas separation membrane uses the penetration rate of δeach component in the air to permeate through the membrane. Under the pressure dr€iving, the nitrogen in the air is preferentially passed through the separation membrane, and the  high concentration nitrogen is obtained at the side of the membrane. The gas membrane separation t¥echnology has been widely used, such as from ammonia for hydrog≈en recovery, separation of sulfur dioxide from flue gas, hydrogen sulfid₽e or carbon dioxide from gas separation, separation of oxyg$en and nitrogen from the air.

     Membrane nitrogen rich equipm↕ent is simple, easy to operate, economical and energy saving. It is now widely used in petroleum ex±ploitation, chemical safety protection, grain and fruit transportation, fres✘h keeping and so on.

    

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