Nitrogen Generation by PSA
PSA nitrogen technology utilizes two towers which are filled with carbon molecular sieve (CMS). Compressed air enters the bottom of one tower. While the smaller oxygen molecules are adsorbed by the CMS, the larger nitrogen molecules pass through the sieve and are stored. Once the CMS of the working tower is saturated with oxygen, the regeneration of the CMS in the tower starts to work by depressurizing, and while another tower is switched to start the process over again.