A system for NO removal from flue gas comprising partial oxidation by H2O2 and selective catalytic reduction (SCR) process is proposed in this study. This hybrid system is found to be extremely efficient for deNO(x) at 200-290 degrees C. In this system, H(2)O(2 )partially oxidizes the NO molecules to NO2. The NO/NO2 mixture reacts fast with NH3 on the surface of a V2O5-WO3/TiO2 catalyst. The reaction kinetics was studied by varying reaction temperatures and the H2O2/NO molar ratio. A V2O3-WO3/TiO2 SCR catalyst was also filled in the oxidation reactor, but it hardly changes the oxidation rate. The downstream SCR reaction was found to be significantly upgraded by the preoxidation process, which elevates the NO(x )reduction rate from 20% (without preoxidation) to more than 60% (with preoxidation).