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Hydrogenation catalyst with high denitrification performance and preparation method therefor

A hydrogenation catalyst and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of low carrier strength, limited improvement range, and inability to adapt to industrial Requirements and other issues, to achieve the effect of improving stability, good acidity, and large pore volume

Active Publication Date: 2016-10-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Hydrogenation catalyst with high denitrification performance and preparation method therefor
  • Hydrogenation catalyst with high denitrification performance and preparation method therefor
  • Hydrogenation catalyst with high denitrification performance and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] 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

[0082] 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

[0087] 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

A hydrogenation catalyst with high denitrification performance, with silicon and phosphorus-containing alumina as the carrier, and metal oxides of VIB and / or VIII groups as active components; the pore volume of the carrier is 0.70-1.5mL / g , the specific surface area is 250~450m 2 / g; the 20-30nm pore ratio of the catalyst carrier reaches more than 20%; the acid properties of the carrier surface are: the acid amount is 0.2-0.7mmol / g, and the B acid is 0.1-0.3mmol / g; the specific surface area of ​​the catalyst is 200- 400m 2 / g, the pore volume is 0.4-1.0mL / g, and the proportion of 20-30nm pores reaches more than 20%. The invention also provides a preparation method of a hydrogenation catalyst with high denitrification performance.

Description

technical field [0001] The invention relates to a hydrogenation catalyst with high denitrification performance and a preparation method thereof. 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. [0003] Sulfur, nitrogen, and metals in petroleum fractions are all in the aromatic ring structure, especially the hydrogenation removal of nitrogen-containing aromatic compounds is the most difficult, so hydrodenitrogenation has become one of the key technologies in the hydrotreating process of distillate oil. The key to hydrode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J23/882B01J23/888C10G45/08
Inventor 赵元生赵愉生王燕周志远张志国姚远张天琪刘佳澎范建光
Owner PETROCHINA CO LTD
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