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    From now on, as we explain about PSA Nitrogen Generator, PSA Nitrogen Generator that is, the specific principles, and professional interpretation of the term, I hope to help you.
Adsorption of Nitrogen Generator
     Porous solid surface due to the molecular or atomic are with the rest of the surface energy, when the fluid in some of the collision of solid surface material by these unbalanced forces will remain in the solid surface.
     Sorption with the material, known as the adsorbent, the adsorption of substances known as the adsorbate. Common adsorbents are activated carbon, sulfonated coal, coke, charcoal, clay, slag, and large aperture, such as adsorption resin.
The classification of adsorption
     1. In accordance with the nature of adsorption forces, adsorption can be divided into physical adsorption, chemical adsorption and ion exchange adsorption.
     2. In accordance with the adsorption conditions change, can be changed into the adsorption isotherm, the concentration of PSA, as well as variable absorption.
Nitrogen adsorption Machine
     According to experiments, adsorption isotherms summarized as shown in Figure 13-1 of the five types 
     I-type adsorption saturated value. This is equivalent to adsorption in the adsorbent surface, the formation of monolayer adsorption, close to Langmuir-type adsorption isotherm.
     Class II is characterized by its saturation value does not appear, with the contrast increasing pressure to balance the sharp increase in adsorption, convex curve, are multi-layer physical adsorption.
     Class III concave curve, with the amount of adsorbed gas component partial pressure increases.
     Class IV is limited to the formation of multi-layer adsorption. With the beginning of adsorption gas component of the increase in pressure increased rapidly, convex curve, easily formed on the surface of adsorbent monolayer mobile adsorption; protruding section of the curve and then said adsorbent surface as a result of the establishment of a similar liquid film multi-molecular adsorption; mutation between the two line segments to explain the phenomenon of condensation in the pores.
     V-type curve concave the start, more difficult to be adsorbate adsorption, adsorption increased with increasing concentration of gases and slow components increased, when close to saturation pressure, the curve tends to saturation, the formation of multi-layer adsorption, the hysteresis effect.