| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and apparatus for treatment of combustion exhaust gas, which make it possible to stably treat hydrogen chloride and sulfur oxide and also make it possible to stably treat heavy metals of fly ash via addition of calcium to fly ash even at industrial waste combustion facilities or combustion facilities of private industrial plants where fluctuations in sulfur oxide and hydrogen chloride concentrations are high. <P>SOLUTION: A combustion exhaust gas containing sulfur oxide and hydrogen chloride flows from a duct (flue) 1, a bag filter 2, and then a duct 3 in this order. Signals from an apparatus 6 for measuring the concentration of hydrogen chloride are input to an apparatus 8 for controlling the addition of slaked lime, so as to control the addition amount of slaked lime. Signals from an apparatus 7 for measuring the concentration of sulfur oxide are input to an apparatus 9 for controlling the addition of alkali metal compounds, so as to control the addition amount of alkali metal compounds. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
