Adsorption generators 2018-07-09T11:08:46+00:00

Adsorption generators

NGS-A generators to obtain nitrogen use adsorption technology on coal mass which fills nitrogen generators modules.
Airpol NGS-A_Airpol-konstrack

During the passage of compressed air through the carbon molecular sieve, smaller oxygen molecules are collected, while large nitrogen molecules are sent to the generator outlet. The carbon sieve adsorbs oxygen until oxygenation, when regeneration of the module is required. After switching the valves, the compressed air is fed to another module, in which adsorption occurs. Due to the presence of two modules with carbon filling, a continuous operation of the nitrogen generator is possible, which is characterized by shift-phase adsorption and regeneration. Regeneration occurs by blowing off the modules with compressed nitrogen. This module also reduces the atmospheric pressure for the release of adsorbed oxygen into the atmosphere.


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NGS-A generators are equipped with a set of filters for compressed air, providing compressed air cleaning from particles and oil. Additionally, generators are also equipped with terminal anti-dust filters, purifying the nitrogen from particles that may get into it from the absorber.

To ensure maximum efficiency and safe operation of the generator, as well as to continue its service life, it is recommended to maintain the dew point temperature at the level of — 40°C.

Technical data of the nitrogen generator and requirements for compressed air:

Nitrogen generator series: NGS-A
Medium compressed air
Operating pressure 6 – 13 bars
Compressed air temperature max. 45°C
The content of solid particles in compressed air < 0,01 µm
The content of oil in compressed air  0,01 mg/m3
The recommended temperature in the dew point of compressed air – 40°C
Ambient medium temperature From +5 to +50°C
The obtained amount of nitrogen Up to 500 m3/h
The content of solid particles in nitrogen < 0,01 µm
Nitrogen purity Up to 99,99 %