Hydrotreating catalyst preparation method

A hydrogenation treatment and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the relationship between pore structure and surface properties that are not conducive to regulation and control problem, to achieve the effect of good activity and stability, high efficiency

Active Publication Date: 2019-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not conducive to the regulation of the relationship between activated carbon and alumina, as well as the pore structure and surface properties of the catalyst support.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The sawdust was dried at 130°C for 5 hours, and then crushed into 200-mesh sawdust; the sawdust and pseudo-boehmite were mixed with Al 2 o 3 Mix according to the mass ratio of 3:7, add 5wt% acetic acid and 3wt% kale powder for kneading, and extrude; the molded object is subjected to microwave pretreatment at 350°C for 1h, and the microwave power is 1kW, and then heated in helium Carry out carbonization treatment under the atmosphere for 4 hours, and the carbonization temperature is 500°C; the carbonized material is activated at a high temperature at 900°C, the activation atmosphere is water vapor containing 10% ammonia by volume, and the activation time is 3 hours, and the carbonized alumina is prepared Composite carrier: impregnating the carbon-containing alumina composite carrier with a solution containing active metal molybdenum and nickel components, then drying at 150°C for 4 hours, and then calcining at 450°C for 3 hours to prepare the hydroprocessing catalyst A o...

Embodiment 2

[0027] The sawdust was dried at 150°C for 4 hours, and then crushed into 100-mesh sawdust; the sawdust and pseudo-boehmite were mixed with Al 2 o 3 Mix according to the mass ratio of 3:7, add 5wt% acetic acid and 3wt% kale powder, knead, and extrude; pretreat the molded object with microwave at 300°C for 2h, microwave power is 3kW, and then Carry out carbonization treatment for 5 hours under an atmospheric atmosphere, and the carbonization temperature is 510°C; the carbonized material is activated at a high temperature at 850°C, the activation atmosphere is carbon dioxide and water vapor containing 10% ammonia by volume, carbon dioxide and ammonia-containing water vapor The volume ratio is 5:5, the activation time is 5h, and the carbon-containing alumina composite support is prepared; the carbon-containing alumina composite support is impregnated with a solution containing molybdenum and nickel components, and then dried at 140 ° C for 4 hours, and then dried at 550 ℃ for 3 h...

Embodiment 3

[0029] The sawdust was dried at 100°C for 8 hours and crushed into 300-mesh sawdust; the sawdust was mixed with large-pore pseudoboehmite with Al 2 o 3Mix according to the mass ratio of 4:6, add 5wt% acetic acid and 3wt% kale powder, knead, and extrude; pretreat the molded object with microwave at 400°C for 2h, microwave power is 2kW, and then Carry out carbonization treatment for 3 hours in an air atmosphere, and the carbonization temperature is 550°C; the carbonized material is activated at a high temperature at 950°C, the activation atmosphere is helium and water vapor containing 10% ammonia by volume, helium and ammonia-containing water The volume ratio of the steam is 6:4, the activation time is 4h, and the carbon-containing alumina composite support is prepared; the carbon-containing alumina composite support is impregnated with a solution containing molybdenum and nickel components, and then dried at 150°C for 4 hours, and then in Calcined at 460° C. for 3 hours to pre...

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Abstract

The invention discloses a hydrotreating catalyst preparation method, which comprises: crushing a wood raw material into wood chips, carrying out mixing kneading on the wood chips and pseudo-boehmite,and carrying out extruding molding; carrying out microwave pretreatment on the molded material, and carrying out carbonization treatment under an inert protective gas atmosphere; carrying out high temperature activation on the carbonized material, wherein the activation atmosphere is an alkaline gas atmosphere; and impregnating the carbon-containing alumina carrier obtained after the high temperature activation with a solution containing an active metal component, drying, and calcining to prepare the hydrotreating catalyst. According to the present invention, with the preparation method, the relationship between the active carbon and the alumina in the catalyst is effectively regulated, the acidity of the surface of the catalyst carrier is improved, and the prepared catalyst has good porestructure and good surface property, and has high hydrodemetallization efficiency, high desulfurization efficiency and high deasphalting efficiency in residue oil hydrotreating.

Description

technical field [0001] The present invention relates to a preparation method of a hydrotreating catalyst, in particular to a preparation method of a hydrotreating catalyst with carbon-containing alumina as a carrier, especially a hydrotreating catalyst for residual oil hydrodemetallization method of preparation. Background technique [0002] At present, with the worsening and heavier trend of crude oil, the increasing demand for light oil products and the increasingly stringent environmental regulations, it is of great significance to vigorously develop the research and development of residual oil hydrogenation technology, and develop high-performance hydrogenation Demetallization catalysts are the key. The reactivity of hydrodemetallization catalysts depends not only on the intrinsic catalytic properties of the active components but also on the properties of the support. The carrier used in residual oil hydrodemetallization catalysts is basically alumina carrier, and ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J35/10C10G45/08
Inventor 隋宝宽吕振辉彭冲季洪海童佳
Owner CHINA PETROLEUM & CHEM CORP
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