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A hydrogenation catalyst carrier and its preparation method

A hydrogenation catalyst and catalyst carrier technology, which is applied in the direction of catalyst carriers, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of not being able to adapt to industrial requirements, low carrier strength, and limited improvement range, and achieve good acidity, The effect of large pore volume and high ratio

Active Publication Date: 2019-08-02
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can play a role in pore expansion, the increase in the ratio of 20-30nm pores is limited, and the strength of the carrier is very low, which cannot meet industrial requirements.

Method used

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  • A hydrogenation catalyst carrier and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Accurately weigh 2950g 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%), dissolve in 10L deionized water, and prepare sodium metaaluminate solution A. Weigh 3332g 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 18 L 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 stirred rapidly at room temperature for 2.5 hours to obtain a uniform white suspension, and 22 L of SiO with a concentration of 60 g SiO 2 / L of water glass, the obtained suspension ...

Embodiment 2

[0059] Accurately weigh 1475g 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 998g 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 0.2mol / L. Transfer 18L of the prepared aluminum sulfate solution into the 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 stirred rapidly at room temperature for 0.5h to obtain a uniform white suspension, and 5L of SiO with a concentration of 60gSiO was added under stirring conditions. 2 / L of ...

Embodiment 3

[0063] Accurately weigh 2950g 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%), dissolve in 10L deionized water, and prepare sodium metaaluminate solution A. Weigh 6664g 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 18 L 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 stirred rapidly at room temperature for 2.5 hours to obtain a uniform white suspension, and 22.80 L of SiO with a concentration of 60 g SiO was added under stirring conditions. 2 / L of ...

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Abstract

The invention provides a hydrogenation catalyst carrier containing silicon and phosphorus and a preparation method therefor. The carrier provided by the invention has the pore volume of 0.70mL / g to 1.5mL / g and has the specific surface area of 250m<2> / g to 450m<2> / g. The carrier is characterized in that the proportion of pores of 20nm to 30nm can reach 20% or more without using a pore expanding agent, and considerable strength and relatively large acid size can be maintained, particularly the acid size of B-acid is relatively large. According to the preparation method for the carrier, provided by the invention, a siliceous pseudo-boehmite raw material is used, a phosphorus salt is introduced for treatment during forming, and thus the carrier is obtained.

Description

technical field [0001] The invention relates to an alumina carrier containing silicon and phosphorus and a preparation method thereof, especially suitable for the preparation of hydrogenation catalysts, especially for the upgrading and processing of heavy oil products such as wax oil, deasphalted oil, and residual oil. transform. 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, deni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J27/182
Inventor 赵元生赵愉生周志远张志国王燕姚远张天琪崔瑞利范建光
Owner PETROCHINA CO LTD
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