摘要：The overall objectives of this study were to use waste flue gas as the activation gas to produce desulfurizers with industrial-scale size, to find the appropriate activated coke and the optimal preparation method, and to determine the operating conditions for the activated coke preparation. The effects of H2O, CO2 and O2 contents in the flue gas were investigated to determine the optimal operating conditions. The results showed that the higher the content of carbon, volatile and calcium oxide (THC) in a coal was, the better the Brunsuer-Emmett-Teller (BET) surface area and the pore volume are due to the increased activating temperature and decreased particle size. The activated coke, loaded with coal tar and finally activated with the flue gas at 800°C, exhibited the best desulfurizing performance with a sulfur retention of about 101 mg-SO2/g-activated coke at a reaction temperature of 100°C. The mechanism for SO2 removal by activated coke shows that the BET surface area, pore volume and THC have a significant influence on SO2 removal efficiency.
