Pilot-scale test for electron beam purification of flue gas from a municipal waste incinerator with slaked-lime

Abstract The flue gas treatment by electron beam irradiation with the blowing of slaked-lime powder was tested in the pilot plant built at a municipal waste incinerator. The flue gas containing NO x , SO 2 and HCl was irradiated by electron beam with slaked-lime powder(Ca(OH) 2 ). Approximately 70 % ofNO x , and 100 % of SO 2 and HCl in the flue gas were removed by the irradiation at a dose of 10 kGy at 150°C with two stoichiometric amount of slaked-lime powder. Lower irradiation temperature and increased amounts of the powder resulted in higher removal rates of NO X .