| 摘要 |
PURPOSE:To obtain a catalyst maintaining NOx removing performance and having low ability to oxidize SO2 to SO3 by incorporating phosphate ore and titanium oxide in a specified ratio and further incorporating the oxide of V, W, etc. CONSTITUTION:This catalyst for removal of NOx in exhaust gas after combus tion contains phosphate ore (A) and titanium oxide (B) in 0.05-0.3 weight ratio of B/(A+B) and further contains one or more among vanadium oxide, tungsten oxide and molybdenum oxide. This catalyst has slightly inferior denitrifying performance but is very effective in reducing the rate of oxidation of SO2 and has superior practicality. |
