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Preparation method of hydrogenation catalyst for slurry bed of heavy oil as well as catalyst and application thereof

A hydrogenation catalyst, slurry bed technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve the complex catalyst preparation process, complex operation process, etc. The problem is to reduce the risk of re-oxidation, the operation steps are simple, and the dispersion performance is good.

Inactive Publication Date: 2017-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The VRST technology proposed by Chevron uses the above-mentioned catalysts, and the application effect is good, but the preparation process of the catalyst is complicated, requiring medium temperature, high temperature, medium pressure and high pressure hydrosulfurization treatment, and the removal of water vapor in the high fraction tank, the operation process is complicated

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  • Preparation method of hydrogenation catalyst for slurry bed of heavy oil as well as catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Weigh 5.73g of molybdenum trioxide in a beaker, add 8.20g of 25% ammonia solution and dissolve it under stirring to obtain solution A; add 11.60g of cobalt nitrate hexahydrate in the beaker, add 15ml of deionized water and dissolve to obtain solution B; in the beaker Add 20.10g of oxalic acid and dissolve it with 20ml of deionized water to obtain aqueous solution C; add B dropwise to aqueous solution A and mix well; then add dropwise C to the above mixed solution and stir until the solution is clear; then transfer the above solution to 500ml high pressure Add 2.00 g of sublimed sulfur powder to the stirred tank, seal the autoclave, and replace it with hydrogen 3 times; the pressure is filled to 1.0 MPa. Under high-speed stirring, heat the autoclave to 310℃±5℃, keep it at this temperature for 30 minutes, and then stop heating. After the autoclave is lowered to room temperature, the pressure is relieved and the autoclave is opened, the obtained slurry is transferred to a c...

Embodiment 2

[0043] Weigh 4.93g of ammonium molybdate in a beaker, add 25ml of deionized water and dissolve it under stirring to obtain solution A; add 8.11g of nickel nitrate to the beaker and add 10ml of deionized water to dissolve to obtain solution B; add 14.50g of oxalic acid to the beaker , Dissolve with 15ml of deionized water to obtain aqueous solution C; add B dropwise to aqueous solution A and mix evenly; then add dropwise C to the above mixed solution and stir until the solution is clear; transfer the above solution to a 500ml high-pressure stirred tank and add Sodium sulfide 15.20g, seal the autoclave, replace with hydrogen 3 times; pressurize to 1.5MPa. Under high-speed stirring, heat the autoclave to 310℃±5℃, keep it at this temperature for 30 minutes, and then stop heating. After the autoclave is lowered to room temperature, the pressure is relieved and the autoclave is opened, the obtained slurry is transferred to a centrifuge tube, centrifuged, and the upper aqueous solutio...

Embodiment 3

[0045] Weigh 5.65g of ammonium molybdate into a beaker, add 30ml of deionized water and dissolve it under stirring to obtain solution A; add 8.62g of ferric nitrate to the beaker, and add 10ml of deionized water to dissolve to obtain solution B; add g of oxalic acid to the beaker, Dissolve with g deionized water to obtain aqueous solution C; add B dropwise to aqueous solution A and mix uniformly; then drop C into the above mixed solution and stir until the solution is clear; transfer the above solution to a 500ml high-pressure stirred tank, and add sublimation Sulfur powder 2.90g, seal the autoclave, replace with hydrogen 3 times; pressurize to 1.5MPa. Under high-speed stirring, heat the autoclave to 310℃±5℃, keep it at this temperature for 30 minutes, and then stop heating. After the autoclave is lowered to room temperature, the pressure is relieved and the autoclave is opened, the obtained slurry is transferred to a centrifuge tube, centrifuged, and the upper aqueous solution...

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Abstract

The invention provides a preparation method of a hydrogenation catalyst for a slurry bed of heavy oil as well as the catalyst and an application thereof. The preparation method comprises the following steps: a molybdenum-containing compound and at least one soluble salt of a metal element which is selected from nickel, cobalt, iron, manganese and copper are dissolved in an aqueous solution; organic acid is added in order to generate sol; a sulfuration reaction is directly carried out in order to obtain ultrafine solid powder in sulfurized state; emulsification and dispersion of the obtained ultrafine solid powder in sulfurized state and distillate oil are carried out, in order to obtain the hydrogenation catalyst for a slurry bed of heavy oil. The hydrogenation catalyst for the slurry bed of heavy oil is applied to a hydrogenation process of a heavy oil raw material of the slurry bed or a suspended bed, the catalyst has good dispersion performance and hydrocracking performance in heavy oil, and coking formation rate can be effectively reduced.

Description

Technical field [0001] The invention relates to a method for preparing a slurry-type hydrogenation catalyst for the hydrogenation of heavy oil, as well as the catalyst and an application method of the catalyst. Background technique [0002] With the increase in oil extraction and processing of heavy oil, especially inferior heavy oil, how to efficiently and greenly transform heavy oil has become a huge challenge in the energy sector. Slurry bed hydro-upgrading or hydrocracking is one of the important heavy oil processing and conversion processes. Compared with fixed bed and fluidized bed hydrogenation processes, its advantages are: it can significantly strengthen the uniform mixing of catalyst, hydrogen and heavy oil macromolecules, and improve the accessibility of catalyst active centers; it is easy to control the temperature and pressure of the reaction process to achieve steady state Operation; easy to control the reaction depth by adjusting the reaction conditions and proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34C10G49/04C10G49/12
Inventor 郜亮温朗友宗保宁慕旭宏俞芳
Owner CHINA PETROLEUM & CHEM CORP
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