Preparation method for residual oil hydrogenation and demetalization 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: 2015-04-29
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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  • Preparation method for residual oil hydrogenation and demetalization catalyst
  • Preparation method for residual oil hydrogenation and demetalization catalyst

Examples

Experimental program
Comparison scheme
Effect test

example 1

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

example 2

[0020] Same as Example 1, except that the dipping solution contains 25 grams of sorbitol, mannitol, and arabinol in a mass ratio of 1:1:1 to prepare the residue hydrodemetalization catalyst C2 of the present invention.

example 3

[0022] The same as Example 1, except that the impregnation solution contains 8 grams of glucose, the residue hydrodemetalization catalyst C3 of the present invention is prepared.

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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 residue hydrodemetalization catalyst. Background technique [0002] At present, the most common hydrogenation catalysts are generally supported catalysts with alumina, silica, etc. as carriers and Co, Ni, Mo, W and other metals as active components. The activity of the catalyst is closely related to the dispersion of the active metal on the surface of the support and the interaction with the support. How to improve the dispersion of the active metal on the surface of the support and at the same time weaken the strong metal-support interaction becomes the key to improving the activity of the hydrogenation catalyst. The active components are usually loaded on the carrier by impregnation or kneading, and then dried and calcined to prepare the catalyst. During the calcination process, the active metal component easily interacts with the alumina carrier to form a strong MO-Al bond, causing the active component...

Claims

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Application Information

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Patent Type & Authority Applications(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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