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A kind of preparation method of hydrogenation catalyst composition

A technology of hydrogenation catalyst and composition, which is applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problems of amorphous silicon-aluminum agglomeration, reduction of catalyst specific surface area and pore volume, and influence on catalyst performance, etc. , to achieve the effect of enhancing the binding force, responding well to the environment and improving the performance

Active Publication Date: 2016-03-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the carrier material is prepared by directly adding molecular sieves in the process of forming amorphous silica-alumina. In this way, amorphous silica-alumina is prone to agglomeration, and it is also easy to enter the pores of the other party or block the pores of molecular sieves, which affects the amorphous silica-alumina. The distribution on the molecular sieve, the poor connectivity between the molecular sieve and the amorphous silica-alumina channel, reduces the specific surface area and pore volume of the catalyst, and the distribution of active metals is not easy to control, which makes the hydrogenation function of the catalyst mismatch with the cracking function, affecting the catalyst performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add 3000g of solid aluminum chloride, 266g of sodium tungstate, and 235g of nickel nitrate into 10 liters of distilled water while heating and stirring until dissolved to obtain a mixed solution (a). Dilute the concentrated ammonia water into about 10wt% dilute ammonia water (b) by adding an appropriate amount of distilled water, and dissolve 229.5g of 1,5-pentanediol in 2L of water to form a solution (c). Dissolve 49.7g of 1,4-butanediamine in 300ml of absolute ethanol, heat to 60°C, stir for half an hour, add 127.5g of Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42 Å, and the relative crystallinity is 95%), the stirring is continued for 2 hours, and the modified molecular sieve (d) which pre-adsorbs the organic amine is obtained after filtration. Take a plastic tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), and add the system in the tank dropwise to pH=4.0 with...

Embodiment 2

[0041] Add 2500g of solid aluminum sulfate, 1483g of sodium tungstate, and 1308g of nickel nitrate into 10 liters of distilled water, while heating and stirring until dissolved to obtain solution (a). Concentrated ammonia water was diluted with an appropriate amount of distilled water to obtain about 10 wt% dilute ammonia water (b), and 372.3 g of 1,4-butanediol was dissolved in 1 L of water to obtain solution (c). Dissolve 316.5g of ethylenediamine in 5L of water, heat to 60°C, stir for half an hour, add 1582.4g of Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42 Å, and the relative crystallinity is 95%) and the molecular sieve slurry (d) is obtained after stirring for 2 hours. Take a plastic tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), control the system in the tank to drop to pH=4.0 within 10 minutes, open the storage The valves of the containers (c) and (d), contin...

Embodiment 3

[0044] Add 200g of solid aluminum sulfate, 416g of sodium tungstate, and 367g of nickel nitrate into 10 liters of distilled water while heating and stirring until dissolved to obtain solution (a). Prepare the solid sodium metaaluminate to a concentration of 20gAl 2 o 3 / l sodium aluminate solution (b), 71.5g propylene glycol was dissolved in 1L water to form solution (c). Dissolve 84.5g of diethanolamine in 10L of water, heat to 60°C, and add 844.9g of Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 The molar ratio is 11.0, the unit cell constant is 24.42 Å, and the relative crystallinity is 95%), the temperature is kept stirring for 2 hours, and the treated molecular sieve (d) is obtained by filtration. Take a glue tank, put 2l of deionized water into it, stir and heat to 60°C, then add (d), open the valve of the container containing (a), (b) and (c) at the same time, control the pH of the system=8.0, (a) and (c) are dripped within 45 minutes, and the valve is closed. Keep ...

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Abstract

The invention discloses a preparation method of a hydrogenation catalyst composition. The method comprises: adding a mixture of molecular sieves and organic amines, organic alcohols and / or organic acids before or during the preparation of composite oxides of alumina and hydrogenation active metal oxides by the co-precipitation method, and aging after gel formation , and then filtered, washed, dried, shaped, dried and calcined to obtain a hydrogenation catalyst composition. The catalyst prepared by this method can organically combine the molecular sieve and alumina, has a good degree of combination and dispersion, can avoid agglomeration or even blockage between the molecular sieve and alumina, and effectively controls the hydrogenation component in each The distribution on the acidic component improves the performance of the catalyst. The hydrogenation catalyst composition prepared by the method of the invention is particularly suitable for hydrogenation catalysts with relatively high requirements on acidity and relatively low requirements on hydrogenation performance.

Description

technical field [0001] The invention relates to a method for preparing a hydrogenation catalyst composition, in particular to a method for preparing a hydrogenation catalyst composition containing molecular sieves. Background technique [0002] Hydrocracking technology is one of the important means for the secondary processing of crude oil and the lightening of heavy oil. Because of its strong adaptability to raw materials, flexible production operations and product solutions, and good product quality, it has become an important way to produce high-quality light clean oil products and solve the source of chemical raw materials. [0003] Hydrocracking catalysts are generally dual-functional catalysts, and their cracking activity and hydrogenation activity are respectively provided by the acidic component and hydrogenation active component in the catalyst. [0004] The acidic component of the catalyst is generally provided by molecular sieves contained in the catalyst and / or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/16B01J29/78C10G47/20
Inventor 蒋广安郑庆华刘雪玲李宝忠张晔王继锋
Owner CHINA PETROLEUM & CHEM CORP
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