DESCRIPTION
e N Compact range of nitrogen generators operate on the Pressure Swing Adsorption (PSA) principle to produce a continuous stream
of nitrogen gas from clean dry compressed air.
Dual chamber columns, lled with extruded beads of adsorbent (Carbon Molecular Sieve [CMS]) material, are joined via an upper and
lower manifold to produce a two bed system. Compressed air enters the bottom of the ‘on-line’ bed and ows up through the CMS. e
oxygen, carbon dioxide, humidity and non-methane hydrocarbons are preferentially adsorbed by the CMS allowing clean dry nitrogen to
pass through.
After a pre-set time the control system automatically switches the bed to regenerative mode. All of the contaminants are vented from the
CMS and a small portion of the outlet nitrogen gas is expanded into the bed to accelerate the regeneration. At the same instant the second
bed comes on-line and takes over the separation process.
e CMS beds alternate between separation and regeneration modes to ensure continuous and uninterrupted nitrogen production.
e oxygen concentration in the nitrogen stream is analysed continuously. If the concentration exceeds the required production level, the
nitrogen outlet is closed and the gas is vented to atmosphere. Normal operation will resume when the purity recovers.
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N2 Compact Nitrogen Gas Generator - User Guide. ©2020.
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