31 塩素化合物共存下での石炭燃焼場における排ガス中の水銀挙動(水銀挙動・定量)

抄録

Effect of addition of chlorine containing compounds to coal combustion environment on mercury speciation was investigated by a drop tube furnace. Mercury oxidation rate in 390℃ was found to increase with increasing HCl concentration in gas phase. Because mercury oxidation rate was different for different kind of coal, the heterogeneous reaction on the coal ash and/or unburned carbon particles may be important. At lower temperature (250℃), the amount of mercury adsorbed by the unburned carbon was confirmed to increase as the unburned carbon amount in ash increased