Hydrogenation catalyst composition and its prepn. method

Abstract

A composite hydrocatalyst for the hydroprocessing, hydrorefining or hydrocracking of hydrocarbon oil contains thiourea compound, sulfurizing and solvent. It is prepared by introducing the thiourea to the hydrocatalyst before or after or while the sulfurizer is introduced to it. It has high content of sulfur, low released heat in activating and high activity.

Description

technical field

[0001] The invention mainly relates to a high-activity hydrocarbon oil hydrotreating catalyst composition and a preparation method thereof, so as to meet the needs of clean light distillate oil production. technical background

[0002] Hydrogenation catalysts are used to treat hydrocarbon oils in the presence of hydrogen for hydrodesulfurization, hydrodenitrogenation, hydrogenation saturation, and hydrocracking reactions. Hydrogenation catalysts use inorganic oxides with strong adsorption capacity such as alumina, Titanium oxide, silicon oxide, and aluminum oxide and silicon oxide composites are used as carriers, and the group VI of the periodic table includes metals such as Mo and / or W, metals such as Mo and / or W, and metals such as group VIII Co and / or Ni. These metals are formed as oxides. form exists. Oxide form catalysts have low activity, and are usually transformed into corresponding metal sulfides to have higher activity. Therefore, pre-sulfurization...