Sulfurized hydrogenation catalyst, prepn. method

Abstract

A process for preparing the sulfurizing hydrocatalyst used for the hydrodesulfurizing and hydrodenitrifying reactions of light fractional oil and the hydrosaturating of arylhydrocarbon includes such steps as carrying a certain part of the precursor compound of the metal in VI and VIII families, introducing sulfur to it, heat treating, introducing the rest of said precursor compound, and drying.

Description

Technical field [0001] The invention relates to a preparation method of a high-activity hydrocarbon oil hydroprocessing catalyst to meet the needs of clean light distillate oil production. Background technique [0002] Hydrogenation catalysts are used to treat hydrocarbon oils for hydrodesulfurization, hydrodenitrogenation, hydrogenation saturation and hydrocracking reactions in the presence of hydrogen. Hydrogenation catalysts are used to adsorb inorganic oxides with strong adsorption capacity such as alumina, Titanium oxide, silicon oxide, and composites of aluminum oxide and silicon oxide are used as the carrier. The group VI of the periodic table includes metals such as Mo and / or W, and metals such as Co and / or Ni of group VIII. These metals are oxides Form exists. Oxide form catalysts have low activity, and they are usually converted into corresponding metal sulfides to have high activity. Therefore, the catalyst must be pre-sulfided after it is loaded into the hydrogenation...

AI Technical Summary

Problems solved by technology

The above catalyst preparation process only adds some additives to the active metal impregnation solution to improve the performance of the catalyst to a certain extent, but it does not directly combine the catalyst preparation process with the presulfurization process