Abstract
Simultaneous removal of NOx, SO2 and HCl in flue gas of a municipal solid waste incinerator was studied by using electron beam irradiation technology. The flue gas around of 1000 Nm3/h was led to a spray-dryer-type reactor from an inlet of ESP of the municipal waste incinerator by spraying slaked-lime slurry with one or more stoichiometic amount of the pollutants, concentrations of HCl (400 ppm) and SO2 (50 ppm) decreased almost completely, while concentrations of NOx (100 ppm) were markedly decreased to about 20 ppm by electron beam irradiation with a dose of 10 kGy at 150°C under spraying slaked-time slurry of two stoichiometric amounts. The removal of NOx was improved by increasing the dose and the amount of spraying slaked-time slurry, and by lowering the irradiation temperature.
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