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A kind of preparation method of residue hydrodemetallization catalyst

A residue hydrogenation and catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the waste of active components and increase the cost of catalyst production, etc. problems, to achieve the effect of reducing production costs

Active Publication Date: 2015-09-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the catalyst preparation process, the active components will be loaded into these micropores and / or mesopores, which will cause waste of active components and increase the production cost of the catalyst.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 100 grams of the above self-made clover-shaped alumina carrier, soak it with 200 mL of polyethylene glycol solution with a mass concentration of 30% and an average molecular weight of 8000 for 2 hours, filter off the excess solution, and place the impregnated alumina carrier at 120 °C Let dry for 3 hours. Use 230 ml with MoO 3 76.2 g / L, NiO12 g / L mixed solution of ammonium molybdate and nickel nitrate was impregnated for 2 hours, filtered off excess solution, dried at 120°C for 2 hours, and then roasted at 550°C for 5 hours to obtain catalyst C1. The catalyst consists of MoO 3 % (weight) 8.51, NiO% (weight) 2.12.

Embodiment 2

[0022] The same as in Example 1, except that 200 mL of polyethylene glycol alcohol solution with a mass concentration of 60% and an average molecular weight of 6000 was used for immersion for 3 hours, and the excess solution was filtered off, and the impregnated alumina carrier was dried at 120° C. for 3 hours. Use 180 ml with MoO 3 90 g / L, NiO18 g / L mixed solution of ammonium molybdate and nickel nitrate was impregnated for 2 hours, the excess solution was filtered off, dried at 120°C for 2 hours, and then calcined at 550°C for 5 hours to obtain catalyst C2. The catalyst consists of MoO 3 % (weight) 8.39, NiO% (weight) 2.07.

Embodiment 3

[0024] The same as in Example 1, except that 200 mL of polyethylene glycol alcohol solution with a mass concentration of 40% and an average molecular weight of 10,000 was used for immersion for 1 hour, and the excess solution was filtered off, and the impregnated alumina carrier was dried at 120° C. for 3 hours. Use 230 ml with MoO 3 59 g / L, NiO9 g / L ammonium molybdate and nickel nitrate mixed solution impregnated for 2 hours, filtered off the excess solution, dried at 120°C for 2 hours, and then roasted at 550°C for 5 hours to obtain catalyst C3. The catalyst consists of MoO 3 % (weight) 8.46, NiO% (weight) 2.25.

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Abstract

The invention discloses a preparation method of a hydrodemetalization catalyst for residuum. The method comprises the following process: first impregnating an alumina carrier with a polyethylene glycol solution with the mass fraction of 20%-70%; then drying the impregnated alumina carrier; and finally loading an active component onto the alumina carrier, and drying and roasting to obtain the hydrodemetalization catalyst. The hydrodemetalization catalyst prepared by the method has activity similar to that of the catalyst of the prior art, and reduces the amount of active component and the cost of production.

Description

technical field [0001] The invention relates to a preparation method of a residual oil hydrogenation demetallization catalyst. Background technique [0002] With the increasing requirements for deep processing of raw materials worldwide, the main energy structure is gradually developing in the direction of macromolecules and high carbon, especially for my country where crude oil is generally heavy. In order to effectively solve the problems of excessive diffusion resistance of heavy oil components in the catalyst pores, heavy metal impurity deposition and coking caused by catalyst activity decline or deactivation, it is urgently required that the alumina carrier widely used in the petrochemical industry has a large pore volume and The characteristic of large aperture. The large pore size is conducive to the diffusion of macromolecular compounds into the catalyst particles, and the large pore volume is conducive to improving the ability to accommodate metals or coke. [000...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883C10G45/06
Inventor 孟雪松陈琳凌凤香王少军
Owner CHINA PETROLEUM & CHEM CORP
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