The gas separation membrane uses the penetration rate of each component in the air to permeate through the membrane. Under the pressure driving, 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 technology has been widely used, such as from ammonia for hydrogen recovery, separation of sulfur dioxide from flue gas, hydrogen sulfide or carbon dioxide from gas separation, separation of oxygen and nitrogen from the air.

     Membrane nitrogen rich equipment is simple, easy to operate, economical and energy saving. It is now widely used in petroleum exploitation, chemical safety protection, grain and fruit transportation, fresh keeping and so on.

    

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