Advantages：
1.The suitable working temperature range is 420-650℃.
2.High DeNOx efficiency.
3.Good wear resistance .
4.Good resistance to sulfur poisoning .
5.Good resistance to water intoxication .
6.Good resistance to hydrogen chloride poisoning.
4NH3+4NO+O2→N2+H2O
8NH3+6NO2→N2+H2O