Figure 2 shows the temperature profiles along the furnace height when combusting studied 5 fuel materials. It clearly shows that a uniform temperature of 850 "C can be reached in the combustion chamber for all studied fuels, which are slightly sensitive to the fuels. And the temperature at furnace exit is approximately 780 oC. The temperature is typical operating temperature for CFB reactor, which could effectively ensure a better combustion performances of the waste fuels, benefiting the thermal processes of sludge and domestic garbage and thus realizing the purpose of waste-to-fuel