| 초록 |
It investigated catalytic reaction characteristics of H2 SCR that has been applied at low temperature(80~150℃) using Pt catalyst supported on TiO2. The experiments were performed about H2O, O2 in reaction gas, calcination temperature of the Pt catalyst, H2/NOx mole ratio, space velocity. H2O was inhibition of reaction on H2 SCR using Pt catalyst, catalytic performance increased as O2 concentration decrease. Nevertheless, NH3 slip generated by reaction between NOx and H2 absence O2. While, it was profitable that was calcinated less than 600℃ by phase transition and catalytic performance increased as H2/NOx mole ratio increase. However, H2 slip did not generate at that increase mole ratio by H2 oxidation to H2O. |
