SO2 is one of the main precursors for acid rain generation, which is one of the most serious global environment concerns. Basically, application of activated carbon in SO2 adsorption offers several advantages compared to the earlier methods . SO2 removal from coal and oil combustion exhaust using activated carbon has been studied. Most of this research was
done using the impregnated chemicals method, which mostly usesmetal oxides in activated carbon synthesis. SO2 removal can occur through physical adsorption and chemical adsorption. Table 4