| 초록 |
In this study, the effect of the physical and chemical properties of various activated carbons on the SO2 adsorption behavior was investigated. The N2 adsorption isotherm characteristics at 77K were confirmed by Brunauer-Emmett-Teller, Horváth-Kawazoe and Barrett-Joyner-Halenda equations. SO2 was adsorbed under N2 atmosphere, and the adsorption capacity of activated carbon was measured by the breakthrough and saturation experiments in the gas phase. The specific surface area affected the adsorption capacity of saturation, and the micropores affected the adsorption of the breakthrough point. ACs were reduced during the SO2 adsorption process to generate CO2, and this reduction process was confirmed using Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscope-energy dispersive X-ray spectroscopy. It was expected that the adsorbed SO2 was reduced at a specific activated site inside the pore to generate CO2. |
