| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a NOx removal catalyst and methods of manufacturing and regenerating the NOx removal catalyst, which can easily wash out impurities adhered to the catalyst and facilitate reactivation. <P>SOLUTION: The NOx removal catalyst is a catalyst for reducing and removing nitrogen oxide in an exhaust gas by using ammonia and urea as a reducing agent, and is mainly composed of a composition containing an oxide of titanium (Ti), an oxide of molybdenum (Mo) and/or tungsten (W), an oxide of vanadium (V) and aluminum sulfate (Al<SB POS="POST">2</SB>(SO<SB POS="POST">4</SB>)<SB POS="POST">3</SB>). In the composition, (1) >0 atom% and ≤3 atom% of Mo or W with respect to Ti atoms is included and (2) the content of the aluminum sulfate is 1.5-7 wt.% with respect to TiO<SB POS="POST">2</SB>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
