Preparation of hydrogenation catalyst

A technology of hydrogenation catalyst and catalyst carrier, which is applied in catalyst activation/preparation, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problems of inability to disperse the catalyst, uneven catalyst performance, affecting the reaction performance of the catalyst, etc., so as to improve the performance. Effect

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

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Problems solved by technology

[0008] In the prior art, since the molecular sieve is physically mixed and added, it cannot be well dispersed in the catalyst suppo

Method used

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  • Preparation of hydrogenation catalyst
  • Preparation of hydrogenation catalyst
  • Preparation of hydrogenation catalyst

Examples

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Comparison scheme
Effect test

Embodiment 1

[0047] The carrier material prepared according to the method provided by the present invention.

[0048] 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

[0051] 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

[0054] 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 hydrogenation catalyst. The final catalyst is prepared by impregnation method or coprecipitation method using a carrier material containing molecular sieve and amorphous silica-alumina. The carrier material is prepared by introducing molecular sieve slurry in the process of forming amorphous silica-alumina gel, which improves the distribution of molecular sieve in the silica-alumina carrier, improves the coordinated catalytic effect of the two carrier materials, and greatly improves the performance of the catalyst. The catalyst prepared by the method of the present invention can be used in various hydrogenation processes.

Description

technical field [0001] The invention relates to a method for preparing a hydrogenation catalyst, in particular to a method for preparing a hydrogenation catalyst containing molecular sieves. Background technique [0002] Supported catalysts are widely used catalysts. Supported catalysts are generally obtained by impregnating the carrier with a solution containing active components, and then drying and roasting. Hydrogenation catalysts generally use refractory oxides as carriers and metals with hydrogenation properties as active components. The main preparation method used is the impregnation method. Such as hydrorefining catalysts, hydrocracking catalysts, hydrotreating catalysts, hydroreforming catalysts, etc. The carriers of these hydrogenation catalysts mainly include alumina, silica, amorphous silica-alumina, titania, zirconia, molecular sieve, activated carbon, kaolin, clay, etc., which are selected according to the performance requirements of the catalyst. The active...

Claims

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Application Information

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IPC IPC(8): B01J37/02B01J29/076B01J29/85
Inventor 谷明镝王刚卜岩
Owner CHINA PETROLEUM & CHEM CORP
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