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Preparation method of catalyst carrier dry gel powder

A technology of catalyst carrier and dry rubber powder, which is applied in the direction of catalyst carrier, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problems of blocking molecular sieves, easy access to each other's channels, and agglomeration of amorphous silicon and aluminum, so as to avoid agglomeration and improve Use performance, the effect of enhancing binding force

Active Publication Date: 2013-05-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, amorphous silicon-alumina is prone to agglomeration, and it is also easy to enter the pores of the other party or block the orifice of the molecular sieve, which affects the distribution of amorphous silicon-alumina on the molecular sieve, and the connectivity between molecular sieve and amorphous silicon-alumina channels is poor. The specific surface area and pore volume of the catalyst are reduced, which affects the performance of the catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 486g of solid aluminum chloride into 1 liter of distilled water while heating and stirring until dissolved to obtain aluminum chloride solution (a). Dilute the concentrated ammonia water into about 10% dilute ammonia water (b) by adding an appropriate amount of distilled water, and dissolve 93g of xylitol in 500ml of water to form a solution (c). Take 10L of water glass (industrial grade, modulus 3.0) and dilute it in 20L of deionized water to prepare solution (d). Dissolve 15g of ethanolamine in 100ml of water, heat to 60°C, add 38g of modified Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 =11.0, unit cell constant is 24.42 Å, relative crystallinity is 95%) beating for 2 hours to obtain slurry (e). Take a stainless steel reaction tank, add (a) into the tank, stir and heat to 65°C, open the valve of the container containing (b), control the system in the tank to drop to pH = 4.5 within 10 minutes, and continue to drop (b), open the valve of the container containin...

Embodiment 2

[0030] 120g of solid aluminum sulfate was added to 1 liter of distilled water while heating and stirring until dissolved to obtain aluminum sulfate solution (a). Add an appropriate amount of distilled water to the concentrated ammonia water and dilute it into about 10% dilute ammonia water (b), and dissolve 18g of 1,4-butanediol in 500ml of water to form a solution (c). Take 10L of water glass (industrial grade, modulus 3.0) and dilute it in 20L of deionized water to prepare solution (d). Dissolve 13g of ethanolamine in 100ml of water, heat to 60°C, add 65g of modified Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 =11.0, unit cell constant is 24.42 Å, relative crystallinity is 95%) beating for 2 hours to obtain slurry (e). Take a stainless steel reaction tank, add (a) into the tank, stir and heat to 65°C, open the valve of the container containing (b), and control the system in the tank to drop to pH=4.5 within 10 minutes, at this time, add Add in the tank, continue to drop ...

Embodiment 3

[0032] 120g of solid aluminum sulfate was added to 1 liter of distilled water while heating and stirring until dissolved to obtain aluminum sulfate solution (a). Prepare the solid sodium metaaluminate to a concentration of 20g Al 2 o 3 / l sodium aluminate solution (b). 36 g of 1,4-butanedioic acid was dissolved in 1 L of water to form solution (c). 57g of ethylenediamine was dissolved in 500ml of water, heated to 60°C, and 572g of modified Y-type molecular sieve Y-1 (SiO 2 / Al 2 o 3 =11.0, the unit cell constant is 24.42 Å, and the relative crystallinity is 95%), and the slurry (d) is obtained after stirring for 2 hours. Take 10L water glass (industrial grade, modulus 3.0) and dilute it in 20L deionized water to prepare solution (e). Take a steel reaction tank, put 2l of deionized water into it, stir and heat it to 65°C, open the valves of the containers containing (a), (b), (c) and (d) at the same time, and control the pH of the system to 8.0 , Control (a) (c) and (d) ...

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PUM

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Abstract

The invention discloses a preparation method of catalyst carrier dry gel powder. The preparation method comprises the following steps of adding a mixture of a molecular sieve and an organic amine, and an organic alcohol and / or an organic acid into amorphous silica-alumina in gelling, after gelling of the amorphous silica-alumina, carrying out aging, and then carrying out filtration, washing and drying to obtain the catalyst carrier dry gel powder. The preparation method realizes ordered arrangement and uniform deposition of the silica-alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the silica-alumina, avoids agglomeration of the amorphous silica-alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the silica-alumina and the molecular sieve, fully develops synergism of the silica-alumina and the molecular sieve, and improves catalyst use performances. The catalyst carrier dry gel powder can be used as an acidic component in a catalyst and is especially suitable for being used as a hydrocracking catalyst carrier.

Description

technical field [0001] The invention relates to a preparation method of a hydrogenation catalyst carrier dry rubber powder, in particular to a preparation method of a molecular sieve-amorphous silicon-aluminum composite carrier dry rubber powder used for a hydrogenation catalyst. Background technique [0002] The rapid development of the world economy and the gradual deterioration of crude oil make the market demand for light oil products and chemical raw materials increase year by year. Hydrocracking technology is one of the important means for the secondary processing of crude oil and the lightening of heavy oil, and it has been increasingly widely used. [0003] The key hydrocracking catalyst of hydrocracking technology. The hydrocracking catalyst is a dual-functional catalyst, and its cracking activity and hydrogenation activity are respectively provided by the acidic component and the hydrogenation active component in the catalyst. The acidic component of the catalyst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J35/10B01J29/08B01J29/40B01J29/70
Inventor 蒋广安张晔方向晨王继锋
Owner CHINA PETROLEUM & CHEM CORP
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