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Preparation method of catalyst carrier material

A catalyst carrier and material technology, applied in catalyst carriers, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of clogging molecular sieves, easy access to each other's pores, agglomeration of amorphous silicon and aluminum, etc. performance, the effect of avoiding agglomeration

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 1500 g of solid aluminum chloride into 10 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 10wt% dilute ammonia water (b), and dissolve 287g of 1,5-pentanediol in 2L of water to form a solution (c). Dissolve 25g of 1,4-butanediamine in 300ml of absolute ethanol, heat to 60°C, stir for half an hour, add 64g 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%), the stirring is continued for 2 hours, and the modified molecular sieve (d) which has pre-adsorbed the organic amine is obtained after filtration. Take a 50-liter steel reaction tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), and control the system in the tank to drop to pH=4.0 within 10 minutes...

Embodiment 2

[0030] 1625g of solid aluminum sulfate was added to 10 liters of distilled water while heating and stirring until dissolved to obtain aluminum sulfate solution (a). Dilute the concentrated ammonia water with an appropriate amount of distilled water to form about 10 wt% dilute ammonia water (b), and dissolve 242g of 1,4-butanediol in 1L of water to obtain a solution (c). Dissolve 97g of ethylenediamine in 5L of water, heat to 60°C, stir for half an hour, add 484g 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%) and the molecular sieve slurry (d) is obtained after stirring for 2 hours. Take a 50-liter steel reaction tank, add (a) into the tank, stir and heat to 60°C, open the valve of the container containing (b), and control the system in the tank to drop to pH=4.0 within 10 minutes , open the valve of the container containing (c) and (d), continue to drop (b), control t...

Embodiment 3

[0032] Add 800 g of solid aluminum sulfate into 10 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), 238g propylene glycol is dissolved in 1L water to form solution (c). 190g of diethanolamine was dissolved in 10L of water, heated to 60°C, and 1906g 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%), the temperature is kept stirring for 2 hours, and the treated molecular sieve (d) is obtained by filtration. Take a 50-liter steel reaction tank, put 2 L of deionized water into it, stir and heat it to 60°C, then add (d), open the valve of the container containing (a), (b) and (c) at the same time, and control the system pH = 8.0, control to drop (a) and (c) within 45 minutes, and close the valve. Keep the ...

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Abstract

The invention discloses a preparation method of a catalyst carrier material. 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 alumina in gelling, after gelling of the amorphous alumina, carrying out aging, 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 alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the alumina, avoids agglomeration of the amorphous alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the alumina and the molecular sieve, fully develops synergism of the alumina and the molecular sieve, and improves catalyst use performances. 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 invention relates to a method for preparing a catalyst carrier material, in particular to a method for preparing a molecular sieve-alumina composite carrier material for a hydrogenation catalyst. Background technique [0002] The rapid development of the world economy and the gradual heavy and inferior quality of crude oil have made the market more interested in light oil products (sea, land and air transportation oil, agricultural oil and heating oil, etc.) and chemical raw materials (light aromatics, olefins and ethylene) The demand for cracking raw materials, etc.) is increasing year by year; in order to protect the living environment of human beings, various environmental protection laws and regulations are gradually promulgated, and increasingly stringent requirements are put forward for the cleanliness of various oil products. Hydrocracking technology is one of the important means for the secondary processing of crude oil and the lightening o...

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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