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Method for preparing carrier material

A carrier material and preparation process technology, applied in the direction of catalyst carrier, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problems of modification process limitation, influence of amorphous silica-alumina properties, reduction of molecular sieve pore volume, etc., to achieve The effect of improving usability

Active Publication Date: 2008-05-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of this method is that the introduction of amorphous silicon aluminum before molecular sieve modification restricts the modification process of molecular sieve, and the modification treatment of molecular sieve also has a great influence on the properties of amorphous silicon aluminum
Moreover, this preparation method is easy to introduce amorphous silica-alumina into the pores of the molecular sieve, block the pores of the molecular sieve, reduce the pore volume of the molecular sieve, and affect the catalytic performance of the molecular sieve

Method used

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  • Method for preparing carrier material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0037] The carrier material prepared according to the method provided by the present invention.

[0038] With 150g modified hydrogen type Y molecular sieve (SiO 2 / Al 2 o 3 =5.1 (molecular ratio, the same below), the unit cell constant is Relative crystallinity is 90%) add 2 liters of distilled water, stir beating, form slurry (a), add 4000g solid aluminum sulfate to 7.5 liters of distilled water, heat simultaneously and stir until dissolving, obtain aluminum sulfate solution (b), Al 2 o 3 The concentration is about 4g / 100ml. Dilute the concentrated ammonia water into about 10% dilute ammonia water (c) by adding appropriate amount of distilled water. 10 liters of distilled water is added in the strong water glass of 4.8 liters of a kind of industrial grade modulus 3.0, obtains dilute water glass solution (d). Take a 15-liter steel reaction tank, add 2 liters of distilled water in the tank and stir and heat to 70°C, open the valves of the containers containing aluminum s...

Embodiment 2

[0040] 150g of modified hydrogen form β (SiO 2 / Al 2 o 3 =28, the unit cell constant is Relative crystallinity is 87%) Molecular sieve is added into 2 liters of distilled water, stirs beating, forms slurry (a), 4000g solid aluminum sulfate is added into 7.5 liters of distilled water, heats simultaneously and stirs until dissolving, obtains aluminum sulfate solution (b), al 2 o 3 The concentration is about 4g / 100ml. Dilute the concentrated ammonia water into about 10% dilute ammonia water (c) by adding appropriate amount of distilled water. 10 liters of distilled water is added in the strong water glass of 4.8 liters of a kind of industrial grade modulus 3.0, obtains dilute water glass solution (d). Take a 15-liter steel reaction tank, add 2 liters of distilled water in the tank and stir and heat to 70°C, open the valves of the containers containing aluminum sulfate and ammonia water respectively, and slowly add (a) into the reaction tank, press Prepare 750g of silicon-...

Embodiment 3

[0042] With 150g modified hydrogen type Y molecular sieve (SiO 2 / Al 2 o 3 =5.1, the unit cell constant is Relative crystallinity is 90%) add 2 liters of distilled water, stir beating, form slurry (a), add 4000g solid aluminum sulfate to 7.5 liters of distilled water, heat simultaneously and stir until dissolving, obtain aluminum sulfate solution (b), Al 2 o 3 The concentration is about 4g / 100ml. Mix (a) and (b) into (b'). Dilute the concentrated ammonia water into about 10% dilute ammonia water (c) by adding appropriate amount of distilled water. 10 liters of distilled water is added in the strong water glass of 4.8 liters of a kind of industrial grade modulus 3.0, obtains dilute water glass solution (d). Get a 15-liter steel reaction tank, add 2 liters of distilled water in the tank and stir and heat to 70 ° C, open the valves of the containers that respectively store aluminum sulfate (containing molecular sieve slurry) and ammonia water, and prepare 750 g of silicon-...

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Abstract

The invention discloses a preparation method of a carrier material containing molecular sieve and amorphous silicon aluminum. The molecular sieve in the carrier of the present invention is introduced during the process of forming amorphous silica-alumina gel, which greatly improves the specific surface area and acidity of the silica-alumina carrier, and makes the molecular sieve evenly distributed in the silica-alumina carrier, which has a good effect on the dispersion of active metal components in the catalyst. It is beneficial to coordinate with both. The silica-alumina of the invention is suitable as a catalyst material for petroleum processing catalysts, especially as a carrier component for hydrotreating and hydrocracking catalysts.

Description

technical field [0001] The invention relates to a method for preparing a carrier material, in particular to a method for preparing a molecular sieve-amorphous silicon-aluminum composite carrier material for a hydrogenation catalyst. Background technique [0002] Generally speaking, most of the dual-function catalysts used in petroleum processing are made of alumina or amorphous silica-alumina as the carrier, with a certain amount of molecular sieve, and impregnated with metal. Alumina of silicon is directly mixed with molecular sieve and other additives, then shaped, dried and calcined, and finally impregnated with metal and activated. As one of the important carrier components of catalysts, amorphous silica-alumina requires that it must have a large enough specific surface and pore volume to support active metal components; molecular sieves are mainly acidic cracking components. For catalysts, the two The cooperation of the two is very important, and only when the two coor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J37/02B01J29/06B01J29/85
Inventor 谷明镝王刚卜岩
Owner CHINA PETROLEUM & CHEM CORP
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