| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method and device for removing mercury in the exhaust gas of a coal-fired boiler, which is derived from mercury containing coal, in an improvement in removal rate while preventing a corrosion of a heating surface inside a furnace. <P>SOLUTION: The method of removing mercury in the boiler exhaust gas is provided. It is characterized by that in the process of treating the exhaust gas of the coal-fired boiler which has at least a desulfurization process of the exhaust gas or a dust collecting process of the exhaust gas, chlorine compound is thrown in at the downstream side of the boiler in the exhaust gas treating pathway maintaining the temperature zone ranging 100 to 350°C, in the range in which all chlorine concentration in the exhaust gas does not exceed 350 ppm. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
