The ammonia generator uses the principle of Pressure Swing Adsorption (PSA) to continuously generate nitrogen from clean and dry compressed air.

The high-strength aerospace aluminum extruded double-cavity column is filled with carbon molecular sieve (CMS) and connected through the upper and lower manifolds, so that the double-cavity column filled with high-density broken molecular sieve (CMS) forms a double-bed system.

Clean, dry compressed air enters the bottom of the “in-line” bed through the inlet manifold and flows upward through the CMS, where oxygen and other trace gases in the compressed air are preferentially adsorbed. The remaining nitrogen passes through the support bed and the exhaust manifold into the buffer tank and a dust filter mounted at the outlet of the buffer tank before entering the nitrogen generator for purity monitoring.

After a pre-set time, the control system automatically switches the beds. One bed is always generating nitrogen online, while the other bed is being regenerated. During regeneration, molecularly collected oxygen is vented to the atmosphere. A small portion of the exported nitrogen expands into the beds to accelerate the regeneration process.