High surface area MoO3/TiO2 hydrodesulfurization catalysts

MoO3/TiO2 catalysts were prepared by conventional impregnation of TiO2 supports with surface areas of 140, 230 and 407 m2g−1. The loading of MoO3 was 2–32wt.%. According to the point of zero charge, the supports were saturated with a molybdena monolayer at approximately 12, 24 and 14 wt.%, respectively. Activity in hydrodesulfurization of thiophene increased up to the loading of ∼20 wt.%, and then decreased for all the three supports.