The adsorbent container filled with zeolite preferably adsorbs Nitrogen and CO2; here oxygen is not adsorbed by the Zeolite due to its larger molecular size and passes through the absorber into the feed containers.
Based on the prescribed time interval, the online adsorber goes into regeneration mode and the adsorbed gas from the Zeolite is expelled into the atmosphere.
During this process, the oxygen analyzer monitors the oxygen concentration and allows the oxygen gas to be stored.
If the oxygen concentration is lower than the preset value, the PLC changes the aeration value and clears the gas until it reaches the required purity level.