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Shandong Gamma Gas Engineering Co. Ltd.

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Home > Industry Information > Principle of gamma gas nitrogen generator

Principle of gamma gas nitrogen generator

2018-11-05
Principle of gamma gas Nitrogen Generator
The carbon separation device for Carbon molecular sieve nitrogen, commonly referred to as the nitrogen generator, is a process of adsorption of carbon molecular sieves to the group at room temperature, PSA pressure swing adsorption, adsorption and non-thermal pressure swing adsorption separation. Increase and decrease due to local pressure drop. Thus, the carbon molecular sieve adsorbs the pressure, and the carbon molecular sieve which releases the adsorbed components under reduced pressure is regenerated to form a cycle operation.

Nitrogen-making equipment uses air and high-quality carbon molecular sieves as adsorbents. It adopts the principle of pressure swing adsorption, and uses microporous molecular sieves to selectively adsorb air to achieve oxygen-nitrogen separation. When the molecular sieve is pressurized, oxygen is first adsorbed and nitrogen is obtained from the non-adsorbed phase. This makes it possible to obtain the concentration of nitrogen in the gas phase. Therefore, the use of carbon molecular sieves for the difference in the adsorption capacity of oxygen and nitrogen for a certain period of time, the automatic control software for the specific time schedule of pressure adsorption, the separation with oxygen and nitrogen is completed through the cyclic process of atmospheric pressure analysis, thereby obtaining High purity nitrogen product.

Nitrogen Gas Plant

Nitrogen generator working principle

Nitrogen generator is based on the principle of pressure swing adsorption, using high-quality carbon molecular sieve as adsorbent to produce nitrogen from air under a certain pressure. After the compressed air is dried and purified, the pressure is desorbed under vacuum adsorption. Due to the aerodynamic effect, the diffusion rate of oxygen molecules in the micropores of the microporous molecular sieve is much greater than the diffusion rate of nitrogen. Oxygen is preferentially adsorbed in the carbon molecular sieve, and nitrogen is enriched in the gas phase to form nitrogen. After the pressure is reduced to atmospheric pressure, the adsorbent is removed from the adsorbed oxygen and other impurities to achieve regeneration. Generally, it is set in two adsorption tower systems, one column adsorbs nitrogen, and the other tower desorbs and regenerates through PLC program. The controller controls the opening and closing of the gas valve to circulate the two towers to achieve the purpose of continuously producing high-quality nitrogen.