In the context of catalysis, PSA is often used for the purification of gases such as hydrogen, nitrogen, and oxygen. The PSA process involves two main steps: pressurization and depressurization. During the pressurization phase, the gas mixture is passed through a bed of adsorbent material, which selectively adsorbs undesired components. In the depressurization phase, the pressure is released, causing the adsorbed components to desorb and be removed from the system.
