| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combustion discharge gas treatment apparatus capable of efficiently treating a combustion discharge gas containing harmful substances such as mercury, NOx, dioxins, and the like at a low cost. <P>SOLUTION: The combustion discharge gas treatment apparatus 1 is provided with an electric dust collector 2 for collecting dust from a discharge gas (combustion discharge gas) G1 from a cement kiln 24, a first catalyst device 4 for decomposing and removing NOx and/or dioxins contained in the discharge gas G2 passed through the electric dust collector, a second catalyst device 6 for decomposing and removing dioxins remaining in the discharge gas passed through the first catalyst device and oxidizing metal mercury, and a wet dust collector 9 for collecting water-soluble components and dust from the discharge gas G3 passed through the second catalyst device. The electric dust collector has heat resistance against at lowest 150°C and catalysts to be used in the first and the second catalyst devices are preferably titanium-vanadium type catalysts. <P>COPYRIGHT: (C)2013,JPO&INPIT |
