LAUSR

Adsorption is a commonly used method for gas pollutant removal, the adsorption performances of four commercial adsorbents have been compared in this work through a fixed-bed reactor. The single gas adsorption results show that zeolite is more effective for SO2, NO and CO2 removal among the four adsorbents. SO2, NO and CO2 are mainly monolayer adsorbed on adsorbents. Physically adsorbed SO2 is the main adsorption species on 13X zeolite, 5A zeolite and mesoporous alumina according to TPD-MS, while SO2 is more easily oxidized on activated carbon than the other adsorbents; NO can be oxidized more easily on zeolite than activated carbon , only physically adsorbed CO2 is detected on these adsorbents. Multi-component adsorption is investigated on 13X zeolite and activated carbon. For gas adsorption on 13X zeolite, the inhibitive effect of NO on SO2 is 26.3% higher than that of CO2 on SO2, indicating that NO plays a dominant role in SO2 adsorption. Physically adsorbed NO is the only NO adsorption species on 13X wh...