A kind of heavy oil hydrogenation catalyst and its preparation and application

A technology for hydrogenation catalysts and heavy oils, applied in catalyst supports, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem that the fibrous structure is easily damaged and cannot build open channels , forming difficulties and other problems, to achieve the effect of improved performance, improved demetallization activity, and improved carbon residue removal activity

Active Publication Date: 2016-09-07
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, in the process of preparing the carrier by using fibrous pseudo-boehmite, it is very difficult to shape due to the small number of particle contact points.
In addition, the fibrous pseudo-boehmite prepared by carbonization is easily destroyed during the molding process, and open channels cannot be constructed.

Method used

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  • A kind of heavy oil hydrogenation catalyst and its preparation and application
  • A kind of heavy oil hydrogenation catalyst and its preparation and application
  • A kind of heavy oil hydrogenation catalyst and its preparation and application

Examples

Experimental program
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Effect test

preparation example Construction

[0023] A. Preparation of silicon-containing fibrous pseudo-boehmite:

[0024] (1) Dissolving sodium metaaluminate solid in water to prepare sodium metaaluminate aqueous solution;

[0025] (2) Water glass is added dropwise in the sodium metaaluminate aqueous solution under vigorous stirring;

[0026] (3) mixing the aluminum sulfate solution with the mixed aqueous solution of sodium metaaluminate and water glass; the pH value of the obtained suspension is controlled at 7 to 9;

[0027] (4) Transfer the obtained suspension to an autoclave, and treat it at 160°C to 250°C for 4 to 5 hours;

[0028] (5) After the reaction is completed, the temperature of the autoclave is naturally cooled to room temperature, and the obtained white precipitate is washed by centrifugation, and dried at 60 to 100° C. to obtain pure silicon-containing fibrous boehmite;

[0029] The molar ratio of water glass to sodium metaaluminate is 0.01-0.4 based on silicon oxide and aluminum oxide, and the silicon...

Embodiment 1

[0036] Pseudoboehmite FP-1 and its preparation method:

[0037] Accurately weigh 295g sodium metaaluminate (produced by German Sigma-aldrich company, Al 2 o 3 Content is 50-56% by weight, Na 2 O content is 40-45%), is dissolved in 1000ml deionized water, is mixed with sodium metaaluminate solution A. Add dropwise 2.37g water glass (Lanzhou Petrochemical Catalyst Factory, silicon oxide 250.0g / l, sodium oxide 83.0g / l, density 1.250g / cm2) in A solution under vigorous stirring 3, the same below), to obtain the B solution. Weigh 480.0 g of aluminum sulfate octadecahydrate (produced by Shantou Xilong Chemical Factory Co., Ltd., analytically pure), add deionized water to dissolve, and prepare an aluminum sulfate solution with a concentration of 0.4 mol / L. At room temperature and under stirring conditions, the prepared solution B was added dropwise to the aluminum sulfate solution. After the dropwise addition, the white suspension was rapidly stirred at room temperature for 2.5 ho...

Embodiment 2

[0043] Pseudoboehmite FP-2 and its preparation method:

[0044] Take by weighing 295g sodium metaaluminate (produced by German Sigma-aldrich company, Al 2 o 3 Content is 50-56% by weight, Na 2 O content is 40-45%), is dissolved in 1000ml deionized water, is mixed with sodium metaaluminate solution A. Add dropwise 23.7g water glass (Lanzhou Petrochemical Catalyst Factory, silicon oxide 250.0g / l, sodium oxide 83.0g / l, density 1.250g / cm2) in A solution under vigorous stirring 3 , the same below), to obtain the B solution. Weigh 480.0 g of aluminum sulfate octadecahydrate (produced by Shantou Xilong Chemical Factory Co., Ltd., analytically pure), add deionized water to dissolve, and prepare an aluminum sulfate solution with a concentration of 0.4 mol / L. At room temperature and under stirring conditions, the prepared solution B was added dropwise to the aluminum sulfate solution. After the dropwise addition, the white suspension was rapidly stirred at room temperature for 2.5 h...

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Abstract

The invention relates to a heavy oil hydrogenation catalyst and its preparation and application; the catalyst carrier is composed of silicon-containing fibrous pseudo-boehmite and conventional pseudo-boehmite, and the silicon-containing fibrous pseudo-boehmite fiber has a diameter of 6 ~15 nanometers, the pore volume is greater than 0.6ml / g, the silicon oxide content is 0.1~10% of the weight of the carrier, expressed as Al 2 o 3 Calculated, the silicon-containing fibrous pseudo-boehmite content is 5-50% of the weight of the carrier; the catalyst active metal is Mo, W, Ni and / or Co, based on the weight of the metal oxide, MoO 3 and / or WO 3 1.0-25.0% of the catalyst, CoO and / or Ni 0.6-6.0% of the catalyst; the catalyst has open pores, high impurity removal activity and stability, simple manufacture, low cost, and is used for heavy oil hydrogenation. The demetallization activity increased by 10%, and the carbon removal activity increased by 15%.

Description

technical field [0001] The invention relates to a heavy oil hydrogenation catalyst and its preparation. The catalyst is suitable for hydrogenation modification and conversion of vacuum wax oil, coking wax oil, deasphalted oil, atmospheric residue oil and vacuum residue oil. Background technique [0002] As crude oil becomes heavier and inferior worldwide, and environmental protection regulations become increasingly stringent, the market demand for light oil products is increasing year by year. The development of deep processing of heavy oil is an urgent task for the oil refining industry, and hydrogenation technology is the main processing method. Facing great challenges, it is urgent to develop better hydrogenation processes and hydrogenation catalysts with higher activity. In terms of catalysts, there is an urgent need to develop catalysts with higher activity and stability for demetallization, desulfurization, denitrogenation, carbon removal, dearomatization (reduction of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883B01J23/888B01J23/882B01J32/00B01J35/10B01J21/12C10G45/08
Inventor 赵元生赵愉生张志国刘元东周志远王燕阎立军范建光崔瑞利于双林王东明王骞陈芬芬余颖龙
Owner PETROCHINA CO LTD
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