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Hydrogenation catalyst composition and its prepn. method

A technology of hydrogenation catalysts and compositions, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc.

Active Publication Date: 2006-11-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] After repeated tests and researches, the present invention finds that when a certain amount of thiourea compound is added to the hydrogenation catalyst containing the sulfurizing agent, it can not only improve the problem of concentrated exothermic heat when the catalyst containing the sulfurizing agent is activated, but also improve the performance of the catalyst. Greatly improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. First, weigh a certain amount of 170 grams of commercial alumina powder, 34 grams of silica sol, 150 ml of purified water, 9 grams of citric acid and 6.0 grams of scallop powder in the following proportions, and stir for 60 minutes to form plastic materials. Make it extrude the wet strip of the clover of Φ 1.5 on extruder. The wet strips were dried at 100°C for 10 hours, then fired at 600°C at a rate of 3°C / min, and kept at this temperature for 3 hours. The pore volume of the calcined carrier is 0.78ml / g, and its specific surface area is 396m 2 / g.

[0020] 2. Add 90L of water, heat and stir, add 61.2kg of molybdenum trioxide, 8.7kg of phosphoric acid, 5kg of citric acid and 27.8kg of basic cobalt carbonate in sequence, keep the temperature at 90°C for 70 minutes, then add clean water to dilute to 100L of solution. Saturatedly impregnate the above carrier in the solution, and dry the impregnated material in air at 110° C. for 5 hours. After drying, the temperature...

Embodiment 2

[0028] The preparation method of the catalyst EPRES-2 is the same as in Example 1, except that 3 grams of citric acid are added to the thiourea dioxide solution obtained in step 3. A hydrorefining catalyst containing a sulfurizing agent is obtained. The activity evaluation method of catalyst EPRES-2 is the same as that in Example 1.

Embodiment 3

[0032] The preparation method of catalyst EPRES-3 is the same as that of Example 2, except that the thiourea dioxide solution obtained in step 3 is changed to thiourea solution, and the amount of thiourea accounts for 15% of the catalyst weight, and the others remain unchanged. A hydrorefining catalyst containing a sulfurizing agent is obtained. The activity evaluation method of catalyst EPRES-3 is the same as that in Example 1.

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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...

Claims

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Application Information

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IPC IPC(8): B01J37/20C10G45/04
Inventor (发明人要求不公开姓名)
Owner CHINA PETROLEUM & CHEM CORP
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