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Preparation method of catalyst carrier dry gel powder

A technology of catalyst carrier and dry rubber powder, applied in catalyst carrier, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problems of clogging molecular sieve, easy access to each other's pores, reduction of catalyst specific surface area and pore volume, etc., to avoid agglomeration , the effect of enhancing the binding force

Active Publication Date: 2014-12-31
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

[0025] 200g of solid aluminum chloride was added to 2 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 to dilute it into about 10% dilute ammonia water (b), dissolve 10g of hexadecylamine in 120ml of absolute ethanol, and add 25g 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 ?, and the relative crystallinity is 95%) 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). 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 250ml of solution (c) into the tank, continue to add (b) dropwise, and control the dropwise...

Embodiment 2

[0027] Add 200 g of solid aluminum sulfate into 2 liters 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), dissolve 18g of octadecylamine in 200ml of absolute ethanol, add 88g 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 to form a slurry (c). Take 10L of water glass (industrial grade, modulus 3.0) and dilute it in 20L of deionized water to prepare solution (d). 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, open the storage The valve of the container of (c), continue to drop (b), control the dropwise addition of the system ...

Embodiment 3

[0029] Add 200 g of solid aluminum sulfate into 2 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), 65g dodecylamine is dissolved in 2.5L dehydrated alcohol, adds 645g 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 slurry (c) is obtained. Take 10L of water glass (industrial grade, modulus 3.0) and dilute it in 20L of deionized water to prepare solution (d). Take a stainless steel reaction tank, put in 2l deionized water, stir and heat to 65°C, open the valves of the containers (a), (b) and (c) at the same time, control the pH of the system to 8.0, and control the pH of the system within 45 minutes (a) (c) and (d) drop off. Keep the temperature at 65°C, pH=8.0, and after staying for 20 minutes,...

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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 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 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 catalyst carrier dry rubber powder, in particular to a preparation method of carrier dry rubber powder containing molecular sieve and amorphous silica-aluminum used for 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 pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J29/08B01J29/70B01J29/18B01J29/60B01J29/85B01J29/03
Inventor 蒋广安张晔方向晨王继锋
Owner CHINA PETROLEUM & CHEM CORP
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