A catalyst for hydrotreating hydrocarbon oil and a method of hydrotreating hydrocarbon oil using the catalyst

Abstract

To provide a catalyst having hydrotreatment (hydrogenation, desulfurization and denitrogenation) performance that is equal to or superior to the prior art, as a hydrotreating catalyst for hydrocarbon oils, and a hydrotreating process for hydrocarbon oils using the catalyst. A hydrotreating catalyst for hydrocarbon oils comprising, at least one metal selected from the group 6 of the periodic table, at least one metal selected from the groups 8 to 10 of the periodic table, and optionally further phosphorus and / or boron as catalytic active components supported on an inorganic porous support based on alumina, wherein the inorganic porous support comprises, as constituent components thereof, silica in an amount of less than 1% by mass with respect to the mass of the oxide and a metal of the group 4 of the periodic table in an amount of less than 13% by mass as an oxide; wherein the metal of the group 4 of the periodic table is highly dispersed in the inorganic porous support, a degree of dispersion thereof is shown by that no peak is substantially observed in the wave number range of 100 to 200 cm-1 by Raman spectroscopy and that no crystal is substantially observed by X-ray diffraction analysis; wherein the hydrotreating catalyst has a specific surface area of 100 to 300 m2 / g, a pore volume of 0.2 to 0.5 ml / g, an average pore diameter of 6 to 10 nm, and a NO adsorption amount of 4.5 cm3 / ml or more as catalytic characteristics; and wherein no crystals derived from the metal oxide salts of the group 6 of the periodic table are not substantially observed by X-ray diffraction analysis.

Description

technical field [0001] The present invention relates to a hydrogenation catalyst for removing impurities such as sulfur and nitrogen contained in hydrocarbon oil and a method of using the same. Background technique [0002] In view of the global trend of improving air quality in recent years, further performance improvement of hydrogenation catalysts for performing hydrofinishing (such as desulfurization, denitrogenation, etc.) of distillate oil as the main fuel is required. Commonly used hydrotreating catalysts for hydrocarbon oils are inorganic refractory supports such as alumina or silica, on which molybdenum and hydrogenation active metal components such as cobalt or nickel are supported. [0003] However, in recent years, catalysts require not only improvement in desulfurization performance, but also stability of catalyst performance and economical efficiency contributing to hydroprocessing unit operation efficiency. As a response to this demand, a catalyst technology ...

AI Technical Summary

Problems solved by technology

However, the catalytic performance has not been sufficiently improved due to no mention of high dispersion properties of the inorganic oxide components in the support

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