Preparation method of catalyst carrier material containing molecular sieve and amorphous silica-alumina

A catalyst carrier, amorphous silica-alumina technology, applied in molecular sieve catalysts, catalyst carriers, chemical instruments and methods, etc., can solve problems such as blockage of molecular sieves, amorphous silica-alumina agglomeration, easy access to each other's channels, etc., to improve performance , avoid agglomeration, enhance the effect of binding force

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

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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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  • Preparation method of catalyst carrier material containing molecular sieve and amorphous silica-alumina

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Embodiment 1

[0032] Add 366g of solid aluminum chloride into 1.5 liters of distilled water while heating and stirring until dissolved to obtain aluminum chloride 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 70g 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 20.5g of diethanolamine in 100ml of water, heat to 60°C, add 52g of modified 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%) 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), ...

Embodiment 2

[0034] 366g of solid aluminum sulfate was added to 1.5 liters of distilled water while heating and stirring until dissolved to obtain aluminum sulfate solution (a). Dilute the concentrated ammonia water into about 10% dilute ammonia water (b) by adding an appropriate amount of distilled water, and dissolve 55g of adipic acid 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 21g of ethanolamine in 100ml of water, heat to 60°C, add 107g 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 (b)...

Embodiment 3

[0036] 366g of solid aluminum sulfate was added to 1.5 liters 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). 109 g of 1,4-butanedioic acid was dissolved in 1 L of water to form solution (c). 119g of ethylenediamine was dissolved in 500ml of water, heated to 60°C, and 1189g 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) an...

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Abstract

The invention discloses a preparation method of a catalyst carrier material containing a molecular sieve and amorphous silica-alumina. 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, then carrying out hydrothermal treatment and then carrying out filtration, washing and drying to obtain the catalyst carrier material. 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, and fully develops synergism of the silica-alumina and the molecular sieve. The hydrothermal treatment is conducive to formation of regular mesoporouses in the amorphous silica-alumina so that catalyst use performances are improved. The catalyst carrier material 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 present invention involves a preparation method for catalytic carrier materials containing molecular sieves and non-fixed silica aluminum aluminum, especially for the preparation method of molecular sieve-orderly non-fixed silicon aluminum composite carrier materials for hydrogenation catalysts. Background technique [0002] The rapid development of the world economy and the gradual deterioration of crude oil have increased the demand for light oil and chemical raw materials year by year.Hydrogenation and cracking technology is one of the important means of secondary processing of crude oil and light oil light quality. [0003] Key hydrogenation catalyst for hydrogenation technology.Hydrogenation catalyst is a dual -function catalyst. Its cracking activity and hydrogenation activity are provided by the acidic components and hydrogenation activity components in the catalyst.The acid components in the catalyst are generally provided by the molecular sieve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J35/10B01J29/08B01J29/40B01J29/70C10G47/16
Inventor 蒋广安张晔方向晨王继锋
Owner CHINA PETROLEUM & CHEM CORP
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