2results about How to "High hydrogenation selectivity" patented technology

The application discloses a preparation method of an oil slurry selective hydrogenation catalyst, and comprises the following steps: (1) preparing a molybdenum-cobalt impregnation solution with a volume greater than the pore volume of a catalyst carrier; (2) adding the catalyst carrier into a rotary vacuum impregnation dryer, spraying the molybdenum-cobalt impregnation solution onto the catalyst carrier under the conditions of rotation and vacuum, and then performing vacuumizing, rotary drying, and calcination to obtain the oil slurry selective hydrogenation catalyst. The oil slurry selective hydrogenation catalyst prepared by the method has both desulfurization activity and low three-ring and four-ring aromatic hydrocarbon saturation performance, and is suitable for a selective hydrogenation desulfurization reaction of catalytic oil slurry.