Heavy, residual oil hydrogenating catalyst and its preparation

A desulfurization catalyst and residual oil hydrogenation technology, applied in refining to remove heteroatoms, etc., can solve the problems of insufficient catalyst promotion, catalyst pore volume, specific surface reduction, catalyst performance impact, etc., to avoid competitive adsorption, Reduce the loss of pore volume and specific surface, the effect of high pore volume and specific surface

Inactive Publication Date: 2004-12-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

U.S. Patent No. 5,089,453 introduces Ti as a promoter in the hydrodesulfurization catalyst to improve the activity of the catalyst. However, the catalyst also uses the method of adding acid first and then neutralizing it with alkali, which leads to a large reduction in the pore volume and specific surface of the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Set the concentration to 30gAl 2 o 3 500mL of sodium metaaluminate solution per liter is placed in the ultrasonic transducer, the ultrasonic transducer is controlled to transmit power to 200W, the frequency is 25kHz, the temperature is 25°C, and carbon dioxide gas with a concentration of 40v% is introduced into it, and it is added under constant stirring. The slurry concentration is 20gTiO 2 / l metatitanic acid slurry (pH value is 8.0, particle size is less than 40μm), so that the carrier contains TiO 2 It is 10% by weight, and the carbon dioxide gas is continuously fed until the pH value of the slurry is 10, the carbon dioxide gas is stopped, the slurry is aged for 1.0 hour, and the ultrasonic transducer is turned off. Then filter and wash with deionized water until the carrier contains Na + When it is less than 0.05w% by weight, dry (120° C.) for 4 hours, and then crush to 180 mesh to obtain titanium-containing aluminum hydroxide A.

Embodiment 2

[0024] Compared with Example 1, the transmission power of the ultrasonic transducer is changed to 50W and the frequency is 80kHz, and the amount of other materials and operating conditions are the same as in Example 1, and titanium-containing aluminum hydroxide B is obtained.

Embodiment 3

[0026]Compared with Example 1, the transmission power of the ultrasonic transducer is changed to 800W and the frequency is 50kHz, and the amount of other materials and operating conditions are the same as in Example 1, and titanium-containing aluminum hydroxide C is obtained.

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PUM

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Abstract

The invention relates to a catalyst of hydrodesulfurization of heavy oil and residual oil and its preparing method. The catalyst takes gama-Al2O3 as its carrier, with VIB family and VIII family metals as active components, and with Ti etc. as active assistants. The catalyst assistants Ti of the invention is drawn into by ultrasonic wave in aluminum hydrate gelatinization. The catalyst is prepared by complete mixed kneading method, i.e., adding alkaline solution containing Mo and / or W into aluminum hydrate dry gel powder of Ti drawn by ultrasonic wave to intensively mix until aluminum hydrate powder is wetted by alkaline solution completely, re-adding acid solution containing Co and/or Ni to be mixed until materials become plastic body, extrusion molding, drying, and roasting to get catalyst. Distribution of the catalyst assistants Ti prepared by the method is of more uniform, having pore capacity and specific area improved apparently with excellent performance in use.

Description

technical field [0001] The invention relates to a catalyst for hydrogenation of hydrocarbons and its preparation method, in particular to a catalyst for hydrogenation and hydrogenation of heavy and residual oil and its preparation method, especially to a catalyst for hydrogenation and desulfurization of heavy and residual oil and its preparation method. Background technique [0002] Hydroprocessing is an important process technology in hydrocarbon processing, mainly including hydrodesulfurization, hydrodenitrogenation, hydrocracking, etc. The key to hydroprocessing technology lies in the catalyst. At present, most catalysts for hydrocarbon hydroprocessing are alumina The carrier uses Mo and / or W and Ni and / or Co as active components. In order to achieve maximum economic benefit, improving catalyst performance and reducing cost are the goals pursued in this field. [0003] Generally, simplifying the catalyst preparation process can greatly reduce the production cost of the c...

Claims

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Application Information

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IPC IPC(8): C10G45/04
Inventor 蒋绍洋王纲王永林孙素华陈金汤
Owner CHINA PETROLEUM & CHEM CORP
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