Selective Hydrogenation of Acetylene over a MoP Catalyst

A MoP catalyst was prepared by high temperature hydrogen reduction.Its properties were investigated by X-ray diffraction and in-situ X-ray photoelectron spectroscopy.It was used for the selective catalytic hydrogenation of acetylene.The results indicated that MoP is formed by hydrogen reduction at 650 °C.The prepared MoP catalyst contained high valence molybdenum and phosphorus species.The catalyst is a bifunctional catalyst, which includes a hydrogenation center and an electron-deficient center.Ethylene selectivity can exceed 73% when the acetylene conversion is higher than 99%.