抄録
Slaked lime is usually used in Japan as the dry gas cleaning reactant for MSW incineration exhaust gas. We tested sodium reactant for the dry gas cleaning system instead of slaked lime. The removal rate of acid gas is appropriately 98% for HCl and 90% for SOx at an exhaust gas temperature of 170℃ to 210℃. Leaching test result of the collected ash shows that any heavy metal is not exceeded to the regulated value. This system is proved the stable operation and high removal rate of acid gas through one month continuous operation.