Catalyst suitable for heavy oil hydrogenation and its preparation and application

A technology for catalysts and oil products, applied in the field of catalysts and their preparation, can solve problems such as inability to build open channels, difficulty in forming, and easy damage to fibrous structures, and achieve improved performance, improved demetallization activity, and improved carbon residue removal activity. Effect

Active Publication Date: 2017-01-25
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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  • Catalyst suitable for heavy oil hydrogenation and its preparation and application
  • Catalyst suitable for heavy oil hydrogenation and its preparation and application
  • Catalyst suitable for heavy oil hydrogenation and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] B. Preparation of the carrier:

[0031] Mix fibrous pseudo-boehmite and conventional pseudo-boehmite in a certain proportion, add peptizer and water, etc., knead until forming a plastic body, extrude on an extruder, dry and roast for a period of time to obtain a carrier. The roasting temperature is 350-1200°C, the roasting time is 1-12 hours, the optimum roasting temperature is 600-1000°C, and the roasting time is 2-8 hours. The content of fibrous pseudo-boehmite is Al 2 o 3 Calculated as 5-50% of the weight of the carrier, preferably 8-40%;

[0032] C. Catalyst preparation:

[0033] Using saturated impregnation method, Mo, W, Ni and / or Co are supported on the carrier, by weight of metal oxide, MoO 3 and / or WO 3 It is 1.0-25.0% of the weight of the catalyst, and CoO and / or NiO is 0.6-6.0% of the weight of the catalyst.

[0034] The specific surface area and pore volume of the product pseudo-boehmite in the examples were measured by nitrogen adsorption method, th...

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. Weigh 666.4g 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 0.4mol / L. Transfer 1800 mL of the prepared aluminum sulfate solution into a flask, and add the prepared sodium metaaluminate solution A dropwise at a speed of 2 ml / min into the three-necked flask at room temperature and under stirring conditions, when the sodium metaaluminate solution After the addition of A was completed, the white suspension was rapidly stirred at room temperature for 2.5 h to obtain a uniform white suspension.

[0038] Pack the obtained u...

Embodiment 2

[0044] Pseudoboehmite FP-2 and its preparation method:

[0045] Accurately weigh 147.5g 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 B. Weigh 333.2 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 0.2 mol / L. Transfer 1800 mL of the prepared aluminum sulfate solution into a flask, and add the prepared sodium metaaluminate solution B dropwise at a speed of 2 ml / min into the three-necked flask at room temperature and under stirring conditions, when the sodium metaaluminate solution After the addition of B was completed, the white suspension was rapidly stirred at room temperature for 0.5 h to obtain a uniform white suspension. Pack the obtained unifor...

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Abstract

The invention relates to a catalyst suitable for hydrogenating heavy oil products and a preparation method and application of the catalyst. A catalyst carrier consists of fibrous pseudo-boehmite and conventional pseudo-boehmite, wherein based on Al2O3, the content of the fibrous pseudo-boehmite is 5-50% of the weight of the carrier, and the fibrous pseudo-boehmite has the fiber diameter of 6-15 nanometers, and has the hole volume of greater than 0.6ml / g; the active metals of the catalyst are Mo, W, Ni and / or Co, wherein based on the weight of a metal oxide, the weight of MoO3 and / or WO3 is 1.0-25.0% of the weight of the catalyst, and the weight of CoO and / or NiO is 0.6-6.0% of the weight of the catalyst. The pore channel of the catalyst is open, and the catalyst has relatively high impurity removing activity and stability, is simple to prepare, is relatively low in cost, and is suitable for hydro-upgrading heavy oil; under the condition of same hydrogenation active metal content of the catalyst and the preparation condition, the demetalization activity can be improved by 10%, and the carbon residue removing activity can be improved by 15%.

Description

technical field [0001] The invention relates to a catalyst suitable for hydrogenation of heavy oil products and its preparation, 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 (r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J35/10B01J23/883B01J23/888B01J23/882C10G45/08
Inventor 赵元生赵愉生刘元东周志远张志国王燕阎立军崔瑞利范建光于双林李兆飞陈芬芬喻昊王东明
Owner PETROCHINA CO LTD
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