| abstract |
[Problem to be solved] To provide a catalyst for hydroprocessing (hydrogenation, desulfurization and denitrification) superior to the prior art as a catalyst for hydroprocessing hydrocarbon oil, and a method for hydroprocessing hydrocarbon oil using the catalyst. [Means of solving the task] At least one metal selected from Group 6 of the periodic table and at least one metal selected from Groups 8 to 10 of the periodic table supported as a catalytically active component on an inorganic porous carrier based on alumina, and optionally also containing phosphorus and/or boron As a catalyst for hydroprocessing hydrocarbon oil to the inorganic porous carrier contains silica as a constituent in an amount of less than 1 mass% based on the mass of the oxide and a Group 4 metal of the periodic table in an amount of less than 13 mass% as an oxide; Here, the Group 4 metal of the periodic table is highly dispersed in the inorganic porous carrier, and the degree of dispersion is determined by Raman spectroscopy analysis with virtually no peak in the wavenumber range of 100 to 200 cm -1 and X-ray diffraction analysis. indicated that the crystal is substantially unobserved; The hydrotreating catalyst has, as catalyst properties, a specific surface area of 100 to 300 m 2 /g, a pore volume of 0.2 to 0.5 ml/g, an average pore diameter of 6 to 10 nm, and an NO adsorption amount of 4.5 cm 3 /ml or more; A catalyst for hydrotreating hydrocarbon oils in which crystals derived from metal oxide salts of Group 6 of the periodic table are not substantially observed by X-ray diffraction analysis. |