Pressure Swing Adsorption Psa Oxygen Plants

Under normal temperature and pressure conditions, pressure swing adsorption psa oxygen plants use adsorbents such as zeolite molecular sieves. These adsorbents have the characteristics of selective adsorption. When pressurized, they will adsorb a large amount of impurities such as nitrogen, carbon dioxide and water in the air, while non-adsorbed components such as oxygen are enriched in the gas phase. When the adsorbent is depressurized, the previously adsorbed nitrogen and other impurities are desorbed and discharged into the atmosphere, and the adsorbent is regenerated. Through this cyclic process of pressurized adsorption and decompression desorption, nitrogen and oxygen separation is achieved, thereby producing high-purity oxygen. The purity of oxygen is usually around 93%±2.