| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and apparatus for treating exhaust gas by which oxidization of sulfur dioxide can be suppressed low and a high denitration ratio is maintained when coal is burnt in a coal burning boiler and further mercury in the exhaust gas discharged from the coal burning boiler can be removed with high efficiency at low cost. <P>SOLUTION: In the method for treating the exhaust gas to remove the mercury contained in the exhaust gas discharged from the coal burning boiler B, an oxide of vanadium which is a transition metal and an oxide of a transition metal except vanadium are carried on a carrier to form a denitration catalyst. In the denitration catalyst, a part of vanadium oxide is replaced with a transition metal oxide having oxidation reduction capability except vanadium to form a replaced catalyst 9. The replaced catalyst 9 is located at a denitration part 3 provided in a smoke passage R from the coal burning boiler B to promote oxidation reaction of metal mercury contained in the exhaust gas. <P>COPYRIGHT: (C)2010,JPO&INPIT |
