The test reactor is a 1.5 m long circulating fluidized bed (CFB) reactor with inner diameter of 114 mm for combustion characterizations of waste fuels. The scheme of CFB reactor is shown in Figure 1; electrically heated modules is installed for either ignition or furnace temperature control. A screw feeder is used to inject solid fuel into furnace from furnace bottom with a maximum capacity of 3 kg/h. 6 thermocouples are equally located along the furnace height to record the temperatures of the flue gas. Air is heated up to 350 °C for efficiency combustion. The excess air ratios for combustion processes of Fuel- A. Fuel-B, Fuel-C, Fuel D. and Fuel-E are 1.72, 1.56. 1.56, 1.63, and 1.57, respectively