... supply all kinds of hydrotreating catalyst for petroleum plants, Co-Mo catalyst, Co-Mo-Ni catalyst, etc. The hydrorefining catalysts are ... of hydrorefining catalysts such as: Alumina supported cobalt molybdate(Co-MO-γ-Al2O3), Alumina supported nickel molybdate(Ni-Mo-γ-Al2O3), ... Alumina supported nickel-cobalt-molybdate(Mo-Co-Ni-γ-Al2O3), Alumina-silica supported nickel molybdate(Ni-Mo ...