Hydrated alumina forming matter and preparation method thereof, alumina forming matter, catalyst and preparation method and application thereof and hydrotreating method

A technology of hydrated alumina and moldings, which is applied in the direction of metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, catalyst carriers, etc., can solve the problems of unhealthy operators and unfavorable environmental protection, etc., and achieve Conducive to environmental protection, reduce impact, and reduce production costs

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

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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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  • Hydrated alumina forming matter and preparation method thereof, alumina forming matter, catalyst and preparation method and application thereof and hydrotreating method
  • Hydrated alumina forming matter and preparation method thereof, alumina forming matter, catalyst and preparation method and application thereof and hydrotreating method
  • Hydrated alumina forming matter and preparation method thereof, alumina forming matter, catalyst and preparation method and application thereof and hydrotreating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] With stirring, 5.0g LiNO 3 Dissolve in 95mL deionized water to obtain lithium-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 hydroxyethyl methylcellulose (purchased from Shanghai Huiguang Fine Chemical Co., Ltd.), 3.0 g scallop powder and the above-mentioned lithium-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, thereby obtaining the hydrated alumina molding according to the present invention. The radial crushing strength, water absorption rate and δ value of the obtained moldings were measured, and the results are listed in Table 1.

Embodiment 2

[0118] (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.

[0119] (2) Mix 3.0g LiNO with stirring 3...

Embodiment 3

[0121]With stirring at a temperature of 60° C., 9.8 g of lithium oxalate was dissolved in 95 mL of deionized water to prepare a lithium-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 methyl cellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 2.0g hydroxypropyl methylcellulose (purchased from Zhejiang Haishen Chemical Co., Ltd.), 3.0g squash powder and the above lithium-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 hydrated alumina molding according to the present invention. The radial crushing strength, water absorption rate and δ value of the obtained moldings were measured, an...

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Abstract

The invention provides a hydrated alumina forming matter and a preparation method and application thereof, the hydrated alumina forming matter is prepared from raw materials comprising at least one hydrated alumina, at least one lithium containing compound and at least one cellulose ether, the water absorption rate of the forming matter is 0.4 - 1.5, the delta value is less than 10%, and Q1 is more than 12N / mm. The invention also provides an alumina forming matter and application thereof, the alumina forming matter is prepared by roasting the hydrated alumina forming matter of the invention. The invention further provides a catalyst prepared by using the hydrated alumina forming matter or the alumina forming matter as a carrier and having hydrogenation catalysis effect and a preparation method and application thereof. The invention also provides a hydrocarbon oil hydrotreating method using the catalyst. The alumina forming matter has high strength and strength retention. The catalyst shows a higher catalytic activity in hydrocarbon oil hydrotreating.

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 lithium element into the alumina molding, and the formation of spinel can be inhibited, thereby improving the catalytic activity of the catalyst. [0003] Alumina moldings can be obtained by mixing hydrated alumina with water, peptizing agent and optional extrusion a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/28B01J32/00B01J27/19B01J23/888C10G45/04
Inventor 马军建杨清河曾双亲聂红李大东
Owner CHINA PETROLEUM & CHEM CORP
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