| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of easily and effectively suppressing differential pressure of an air preheater in a thermal power plant. <P>SOLUTION: The thermal power plant P includes a boiler 1 for burning a fuel including coal, and exhaust gas treatment equipment 20 for treating a combustion exhaust gas discharged from the boiler 1. The exhaust gas treatment equipment 20 includes a flue-gas denitration device 21 for removing nitrogen oxide included in the combustion exhaust gas, and the air preheater 22 disposed at a lower stage of the flue-gas denitration device 21 for exchanging heat between the combustion exhaust gas and the air supplied to the boiler 1. In the thermal power plant P, coal or a coal mixture in which a ratio (CaO/S) of a content rate of calcium oxide to a content rate of the total sulfur content is 3.0 or more, is used as the fuel. <P>COPYRIGHT: (C)2011,JPO&INPIT |
