| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a denitration device capable of improving denitration performance and reducing NH<SB POS="POST">3</SB>leakage without increasing an SO<SB POS="POST">2</SB>oxidation rate. <P>SOLUTION: The denitration device 14 has a denitration catalyst 15 consisting mainly of titanium (Ti), vanadium (V) and molybdenum (Mo) or titanium (Ti), vanadium (V) and tungsten (W) installed to make exhaust gas 12 into which ammonia is injected from an ammonia injection line 13 pass through the denitration catalyst 15 to remove nitrogen oxide included in the exhaust gas 12. A denitration catalyst 19 composed of titanium (Ti), molybdenum (Mo) or a denitration catalyst 19 composed of titanium (Ti), molybdenum (Mo) and phosphorus (P) is extended to a downstream part of the denitration catalyst 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
