| 초록 |
In this work, mesoporous WO3-based composite oxides such as were synthesized by using nano-replicatin method via mesoporous silica KIT-6 as a hard template. The catalysts were well-characterized by X-ray diffraction (XRD), N2-adsorption and scanning electron microscope (SEM). The catalytic activities of those catalysts for the oxidative desulfurization of 4,6-dimethyldibenzothiophene (4,6-DMDBT), benzothiophene(BT), and dibenzothiophene (DBT) with H2O2 as the oxidant in model oil were also investigated under atmospheric pressure at 50oC. Mesoporous WO3 and mesoporous tungsten-molybdenum oxides showed best catalytic activities. The catalytic activity decreases in the order of DBT ＞ 4，6-DMDBT＞ BT for the various sulfur-containing compounds. |
