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A kind of preparation method of residue hydrodemetallization catalyst

A technology for hydrodemetallization and residual oil hydrogenation, which is used in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., and can solve problems such as unsatisfactory mechanical strength of catalysts

Active Publication Date: 2017-02-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the shaped support has not been roasted, the mechanical strength of the catalyst is not ideal

Method used

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  • A kind of preparation method of residue hydrodemetallization catalyst
  • A kind of preparation method of residue hydrodemetallization catalyst

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Weigh 100 grams of the above-mentioned self-made clover-shaped alumina (water content 25%), use 150ml containing 15 grams of xylitol, MoO 3 105 grams, 15 grams of NiO impregnating solution impregnated the above carrier for 3 hours, filtered off the excess solution, and dried at 110°C for 8 hours. The dried material was first calcined at 260°C for 4 hours under a nitrogen atmosphere, and then in Calcined at 600°C for 4 hours, and finally at 400°C for 3 hours in an air atmosphere. The residue hydrodemetallization catalyst C1 of the present invention was prepared.

example 2

[0020] Same as Example 1, except that the impregnating solution contains 25 grams of sorbitol, mannitol, and arabic alcohol at a mass ratio of 1:1:1, to obtain the residual oil hydrodemetallization catalyst C2 of the present invention.

example 3

[0022] Same as Example 1, except that the soaking solution contains 8 grams of glucose, and the residue hydrodemetallization catalyst C3 of the present invention is obtained.

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Abstract

The invention discloses a preparation method for a residual oil hydrogenation and demetalization catalyst. The preparation method comprises the following steps: dipping and molding an aluminum oxide carrier in an active metal component dipping solution containing polyhydric alcohols and / or saccharides, drying the dipped carrier, and then roasting the carrier under an inert gas atmosphere and an air atmosphere in sequence to prepare the hydrogenation and demetalization catalyst. The active components of the catalyst prepared by the method have weak interaction with the carrier and are likely to be completely vulcanized, so that the demetalization and desulfuration activities of the catalyst are obviously improved.

Description

technical field [0001] The invention relates to a preparation method of a residual oil hydrogenation demetallization catalyst. Background technique [0002] At present, the most common hydrogenation catalysts are generally supported catalysts with alumina, silica, etc. as the carrier, and metals such as Co, Ni, Mo, and W as active components. The activity of the catalyst is closely related to the dispersion degree of the active metal on the surface of the support and the interaction with the support. How to improve the dispersion of active metals on the surface of the support and at the same time weaken the strong metal-support interaction is the key to improving the activity of hydrogenation catalysts. The active components are usually loaded onto the carrier by means of impregnation or kneading, and then dried and calcined to obtain the catalyst. During the calcination process, the active metal component is easy to interact with the alumina support to form a strong M-O-A...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883C10G45/08
Inventor 马涛凌凤香王少军王敏赵荣林
Owner CHINA PETROLEUM & CHEM CORP
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