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Method for preparing hydrodemetallization catalyst

A technology for hydrodemetallization and catalyst, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc. Pore-enlarging effect, increasing the content of active components, improving the effect of penetration

Active Publication Date: 2016-04-27
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The active metal component of the residual oil hydrodemetallization catalyst prepared by the above method is uniformly distributed in the macropores and small pores of the carrier, resulting in a low utilization rate of the macropores

Method used

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  • Method for preparing hydrodemetallization catalyst
  • Method for preparing hydrodemetallization catalyst
  • Method for preparing hydrodemetallization catalyst

Examples

Experimental program
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Embodiment 1

[0028] This example introduces the preparation method of molybdenum-nickel-ammonia active metal salt solution. In this embodiment, only one concentration and ratio of molybdenum-nickel-ammonia active metal salt solution is prepared, and solutions of other ratios and concentrations can be prepared according to the method introduced.

[0029] Take 55g of industrial ammonium heptamolybdate, put it in ammonia water, stir until there is no insoluble matter, then add 25g of industrial nickel nitrate, stir until there is no insoluble matter, and make MoO 3 10 g / 100 ml, NiO1.2 g / 100 ml molybdenum-nickel-ammonia active metal salt solution. The immersion solutions with different concentrations can be prepared by adjusting the addition of ammonium heptamolybdate and nickel nitrate according to the needs.

[0030] Weigh 150 grams of pseudo-boehmite dry rubber powder (70% alumina dry basis content), and 10.5 grams of ammonium aluminum carbonate impregnated with active metals (active metal...

Embodiment 2

[0033] With embodiment 1, only the addition of ammonium aluminum carbonate is 18 grams, ammonium aluminum carbonate supports nickel oxide 0.06 gram, and supports molybdenum oxide 0.1 gram to obtain catalyst C2 of the present invention, and this catalyst MoO 3 The mass percentage content is 9.6 wt%, and the mass percentage content of NiO is 1.15 wt%.

Embodiment 3

[0035] With embodiment 1, only the add-on of ammonium aluminum carbonate is 15 grams, ammonium aluminum carbonate supports nickel oxide 0.03 gram, supports molybdenum oxide 0.7 gram and makes catalyst C3 of the present invention, and this catalyst MoO 3 The mass percentage is 9.7wt%, and the NiO mass percentage is 1.05wt%.

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Abstract

The invention discloses a method for preparing hydrodemetallization catalyst. The method comprises the following steps: 1) partial active ingredient impregnation liquid is used for impregnating to ammonium aluminum carbonate hydroxide powder to obtain the active ingredient-modified ammonium aluminum carbonate hydroxide, then ammonium aluminum carbonate hydroxide is dried for standby; 2) the material obtained in the step 1), pseudo-boehmite dry glue powder, a chemical pore-expanding agent, an extrusion aid, and a peptizing agent are shaped, striped, dried, and calcinated to obtain an alumina carrier; and 3) the alumina carrier obtained is loaded with residual active ingredient, is dried, and calcinated to obtain the hydrodemetallization catalyst. The content of the prepared catalyst active metal is high at a macroporous place, and is low at a porous place, and the catalyst has wide application prospect in hydrodemetallization of heavy oil and residual oil.

Description

technical field [0001] The invention relates to a method for preparing a hydrodemetallization catalyst, in particular to a method for preparing a hydrodemetallization catalyst with non-uniform distribution of active metals. 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 characteristics of large aperture. The large pore size is conducive to the diffusion of macromolecular compounds into the catalyst particles, and ...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J35/10C10G45/08
Inventor 季洪海凌凤香王少军沈智奇杨卫亚王丽华郭长友
Owner CHINA PETROLEUM & CHEM CORP
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