| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for recycling refuse as resources while inhibiting the generation of a harmful substance such as dioxins, at low cost. SOLUTION: Refuse is thermally decomposed at 350 to 750 deg.C in the presence of a desulfurizing agent composed of an alkaline substance such as sodium carbonate, and an iron oxide and the like, in a thermally decomposing furnace. Further, a decomposition gas is generated while a hydrogen chloride gas is fixed as an alkaline salt and a hydrogen sulfide gas is fixed as a heavy metal sulfide such as an iron sulfide. Next, a solid matter containing the alkaline salt, the deteriorated desulfurizing agent, a deteriorated fluidizing medium and a thermal decomposition residue, of the decomposition gas, is removed at a temperature near a thermal decomposition and an obtained clean gas component is used as a fuel gas for power generation. The removed solid matter is used as an industrial raw material for cement and a blast furnace after removing the alkaline salt.
|
