Hydrate alumina forming product, production method thereof, alumina forming product, applications thereof, catalyst, preparation method thereof, and hydrogenation processing method

A technology of hydrated alumina and moldings, applied in the direction of metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, catalyst carriers, etc., can solve the problems of unfavorable environmental protection, unfavorable health of operators, etc., and achieve Conducive to environmental protection, reduce the impact on the health of operators, the effect of good absorption performance

Active Publication Date: 2014-01-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Moreover, acids (for example: nitric acid, citric acid, oxalic acid, acetic acid, formic acid, malonic acid, hydrochloric acid and trichloroacetic acid) are usually used as peptizers. A large amount of acid gas is released during the process, which is not only harmful to the health of the operators, but also not conducive to environmental protection

Method used

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  • Hydrate alumina forming product, production method thereof, alumina forming product, applications thereof, catalyst, preparation method thereof, and hydrogenation processing method
  • Hydrate alumina forming product, production method thereof, alumina forming product, applications thereof, catalyst, preparation method thereof, and hydrogenation processing method
  • Hydrate alumina forming product, production method thereof, alumina forming product, applications thereof, catalyst, preparation method thereof, and hydrogenation processing method

Examples

Experimental program
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Effect test

Embodiment 1

[0111] With stirring, 5.0g Mg(NO 3 ) 2 Dissolve in 95mL deionized water to obtain a magnesium-containing aqueous solution. 100.0g of pseudo-boehmite (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by weight), 4.0g of methylcellulose (purchased from Shanghai Huiguang Fine Chemical Co., Ltd.), 3.0g of Tianjing powder and the above-mentioned magnesium-containing aqueous solution are stirred evenly. The resulting mixture is fed into an extruder and extruded to obtain a wet strip. The obtained wet strip was placed in an oven and dried at 150° C. for 12 hours to obtain the hydrated alumina molding according to the present invention, whose radial crushing strength, water absorption and δ value are listed in Table 1.

Embodiment 2

[0119] (1) In a 2L reaction tank, add 2000mL of aluminum sulfate solution with a concentration of 48g / L and sodium metaaluminate solution (alumina content of 200g / L, caustic coefficient of 1.58) in parallel to carry out precipitation reaction. The temperature is 50°C, the pH value is 6.0, and the reaction residence time is 15 minutes; the obtained slurry is filtered with a vacuum filter, and after the filtration is completed, 20L deionized water is added to the filter cake (the temperature is 40±5°C ) to rinse the filter cake for about 60 minutes. Add the washed filter cake to 1.5L deionized water and stir to form a slurry, then pump the slurry into the spray dryer for drying, control the outlet temperature of the spray dryer within the range of 100-110°C, and the material drying time For 2 minutes, hydrated alumina was obtained, wherein the content of alumina was 63% by weight, and it was determined to be amorphous by XRD analysis.

[0120] (2) Mix 3.0g Mg(NO 3 ) 2Dissolve...

Embodiment 3

[0122] With stirring, 14.9 g of magnesium chloride was dissolved in 95 mL of deionized water to prepare a magnesium-containing aqueous solution. 60.0g of pseudo-boehmite (purchased from Sinopec Catalyst Changling Branch, with a dry basis content of 69.5% by weight), 40.0g of gibbsite (purchased from Guangxi Pingguo Aluminum Company, with a dry basis content of 64.5% by weight %), 1.0g methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 2.0g hydroxypropyl methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 3.0g celadon powder and the above magnesium-containing aqueous solution Stir well. The resulting mixture is fed into an extruder and extruded to obtain a wet strip. The obtained wet strip was placed in an oven and dried at 80° C. for 12 hours to obtain the alumina hydrate molding according to the present invention, whose radial crushing strength, water absorption and δ value are listed in Table 1.

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Abstract

The invention provides a hydrate alumina forming product, a preparation method, and applications thereof. The forming product is prepared from following raw materials: at least a hydrate alumina, at least a compound containing magnesium, and at least a cellulose ether, the water absorption rate of the forming product is 0.4 to 1.5, delta value is smaller than 10%, and Q1 is more than 12 N / mm. The invention also provides an alumina forming product and applications thereof, and the forming product is prepared from the hydrate alumina forming product provided by the invention through burning. The invention further provides a catalyst, which has a hydrogenation catalytic function and is prepared by taking the hydrate alumina forming product or alumina forming product provided by the invention as the carrier, a preparation method, and applications thereof. The invention also provides a hydrogenation processing method of hydrocarbon oil by using the catalyst provided by the invention. The forming product provided by the invention has a high strength and a strength retention rate. The catalyst provided by the invention has a higher catalytic activity in the hydrogenation processing of hydrocarbon oil.

Description

technical field [0001] The present invention relates to a hydrated alumina molding and its preparation method and application. The present invention also relates to an alumina molding and its application. The present invention further relates to a catalyst with hydrogenation catalysis and its preparation method and application , The present invention further relates to a hydroprocessing method. Background technique [0002] Alumina, especially γ-alumina, because of its good pore structure, heat resistance stability, and high specific surface area, alumina moldings are often used as carriers for desiccants or supported catalysts. The surface acidity of the finally prepared catalyst can be improved by introducing magnesium element into the alumina molding, and the formation of spinel can be inhibited, thereby improving the catalytic activity of the catalyst. [0003] The magnesium-containing alumina molding can be obtained by mixing hydrated alumina with water, a peptizer and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J32/00B01J21/10B01J23/883B01J23/882B01J23/888B01D53/28C10G49/02C10G45/04
Inventor 马军建杨清河曾双亲聂红李大东
Owner CHINA PETROLEUM & CHEM CORP
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