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Preparation method of hydrocracking catalyst carrier

A catalyst carrier and hydrocracking technology, which is applied in the direction of catalyst carrier, physical/chemical process catalyst, molecular sieve catalyst, etc., can solve the problem of low selectivity of middle distillates

Active Publication Date: 2018-06-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Beta molecular sieves are not hydrothermally treated or hydrothermally treated at relatively low temperatures, the molar ratio of silica to alumina is less than 30:1 and at least 28 wt% SF 6 Adsorption capacity, the β molecular sieve obtained by modification is used as a catalyst prepared by cracking components, and the selectivity of middle distillates is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) Preparation of amorphous silicon-aluminum precursor

[0052] Prepare solid aluminum sulfate to 100mL concentration to be 80g A1 2 o 3 / L aluminum sulfate working solution (a). Dilute the concentrated ammonia water with an appropriate amount of distilled water to obtain about 10wt% dilute ammonia water (b). Take SiO 2 Mass meter 28wt% sodium silicate solution, then diluted to 80mL concentration is 150g SiO 2 / L sodium silicate working solution (c). Take a 5-liter steel reaction tank, add 0.2 liter of distilled water into the reaction tank, stir and heat to 70°C, open the valves of the containers (a), (b) and (c) respectively, and control (a) and The flow rate of (c) is to keep the neutralization reaction time within 40 minutes, and the flow rate of (b) is adjusted quickly to keep the pH value of the system at 7-8, and the temperature of the system is controlled at about 60°C. After the aluminum sulfate reaction is completed, stop adding (b), and the amount of (...

Embodiment 2

[0060] (1) Preparation of amorphous silicon-aluminum precursor

[0061] Prepare solid aluminum chloride to make 100mL concentration be 100g A1 2 o 3 / L aluminum chloride working solution (a). Dilute the concentrated ammonia water with an appropriate amount of distilled water to obtain about 10wt% dilute ammonia water (b). Take SiO 2 Mass meter 28wt% sodium silicate solution, then diluted to 100mL concentration is 100g SiO 2 / L sodium silicate working solution (c). Take a 2-liter steel reaction tank, add 0.3 liter of distilled water into the reaction tank, stir and heat to 70°C, open the valves of the containers (a), (b) and (c) at the same time, control (a) and The flow rate of (c) is to keep the neutralization reaction time within 40 minutes, and the flow rate of (b) is adjusted quickly to keep the pH value of the system at 7-8, and the temperature of the system is controlled at about 60°C. After the aluminum chloride reaction is completed, stop adding (b), and the amo...

Embodiment 3

[0069] (1) Preparation of amorphous silicon-aluminum precursor.

[0070] The solid aluminum chloride is prepared into 120mL concentration and is 100g A1 2 o 3 / L aluminum chloride working solution (a). Dilute the concentrated ammonia water with an appropriate amount of distilled water to obtain about 10wt% dilute ammonia water (b). Take SiO 2 Mass meter 28wt% sodium silicate solution, then diluted to 100mL concentration is 80g SiO 2 / L sodium silicate working solution (c). Take a 2-liter steel reaction tank, add 0.3 liters of distilled water to the reaction tank, open the valve of the container containing (a), add (a) into the reaction tank and stir, and then open the container of (c) Valve, add 40ml of (c) into the reaction tank in about 30 minutes, after heating to 70°C, open the valve of the container containing (b), control the flow of (b) so that the neutralization reaction time is 40 minutes, when the system When the pH value reaches about 7~8, close the valve, an...

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Abstract

The invention discloses a method for preparing a hydrocracking catalyst carrier. The method is prepared by mixing and kneading β molecular sieve, SBA‑15 molecular sieve, amorphous silicon aluminum and binder, wherein the β molecular sieve adopts a specific acid-base precipitation method to prepare the amorphous silicon aluminum precursor, and then adds water and silicon source and template agent to obtain silica-alumina gel; through two-step dynamic crystallization, ammonium salt exchange and template release agent treatment to obtain β molecular sieve. The hydrocracking catalyst carrier of the present invention adopts high crystallinity, high silicon-aluminum ratio, and good stability beta molecular sieve and SBA-15 molecular sieve as the acidic components, and the hydrocracking catalyst prepared therefrom has good activity and high medium oil selectivity , The advantages of good product quality.

Description

technical field [0001] The invention relates to a preparation method of a hydrocracking catalyst carrier, in particular, β molecular sieve and SBA-15 molecular sieve are used as the main cracking components, and the hydrocracking catalyst prepared therefrom is suitable for hydrocracking of producing high-quality middle distillate oil process. Background technique [0002] With the development of the fuel oil market and increasingly stringent environmental protection regulations, countries are demanding higher and higher quality environmentally friendly products, and major petrochemical companies have increased investment in the development of heavy oil conversion processes. Hydrocracking technology is the main process technology for producing low-sulfur content and high-quality middle distillate oil. [0003] The core of hydrocracking technology is hydrocracking catalyst, and its technical progress depends on the improvement of catalyst level. Molecular sieve, as the main a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/80B01J32/00C10G47/16
Inventor 孙晓艳樊宏飞王继锋于政敏
Owner CHINA PETROLEUM & CHEM CORP
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