CATALYST CONTAINING PHOSPHORUS AND METHOD FOR HYDRO-TREATING OIL FEEDSTOCKS WITH THIS CATALYST

摘要

The invention concerns an alumina based catalyst containing, expressed in weight contents of oxides, 2-10 wt.% of cobalt oxide CoO, 10-30 wt.% of molybdenum oxide MoO3 and 4-10 wt.% of phosphorus oxide P2O5, having a BET surface between 100-300 m<2>/g, an ESH compression set higher than 1.4 MPa, an average pore diameter between 8-11 nm, the porous volume of pores of diameter greater than 14 nm is less than 0.08 ml/g, the volume of pores of diameter less than 8 nm not more than 0.05 ml/g,the volume of pores of diameter between 8 and 14 nm is between 0.20 ml/g and 0.8 ml/g. The invention also concerns a hydro-treating method using this catalyst, and in particular of hydrodesulphuration.