Hydrogenation catalyst and preparation method and application thereof

A hydrogenation catalyst, silicon oxide technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as pore volume and specific surface loss, pore volume and specific surface area reduction, etc.

Active Publication Date: 2020-12-04
SHANXI LUAN MINING GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, the strong acid and alumina will inevitably have a strong interaction, which will cause serious loss of

Method used

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  • Hydrogenation catalyst and preparation method and application thereof
  • Hydrogenation catalyst and preparation method and application thereof
  • Hydrogenation catalyst and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] (1-1) Weigh SiO with an average particle size of 2 μm 2 21g of powder, and after mixing with concentrated hydrochloric acid 15mL and 126g of 30%wt alkaline silica sol (wherein the average particle size of silicon oxide is 25nm), the slurry main body is obtained, then 15g of hexamethylenetetramine is added to the slurry, and stirred It is fully dissolved to obtain a mixed slurry;

[0107] (1-2) Select a nozzle with an inner diameter of 0.25mm and install it on the jet generator, inject the mixed slurry obtained in (1-1) into 25# transformer oil at 95°C at a speed of 0.1m / s to form, and statically After aging for 4 hours, the formed spherical silica was separated from the oil and dried in vacuum at 60°C for 12 hours;

[0108] (1-3) washing the obtained product to neutrality, then drying at 140°C for 10 hours, and calcining at 550°C for 12 hours to obtain micron-sized spherical silica;

[0109] (1-4) Dissolve 5 g of analytically pure copper chloride in 20 g of deionized ...

Embodiment 2

[0114] (2-1) Weigh SiO with an average particle size of 2 μm 2 21g of powder, and after mixing with concentrated hydrochloric acid 15mL and 126g of 30%wt alkaline silica sol (wherein the average particle size of silicon oxide is 25nm), the slurry main body is obtained, then 15g of hexamethylenetetramine is added to the slurry, and stirred It is fully dissolved to obtain a mixed slurry;

[0115] (2-2) Select a nozzle with an inner diameter of 0.25mm and install it on the jet generator, inject the mixed slurry obtained in (2-1) into 25# transformer oil at 95°C at a speed of 0.1m / s to form, and statically After aging for 4 hours, the formed spherical silica was separated from the oil and dried in vacuum at 60°C for 12 hours;

[0116] (2-3) washing the obtained product to neutrality, then drying at 140°C for 10 hours, and calcining at 550°C for 12 hours to obtain micron-sized spherical silica;

[0117] (2-4) Dissolve 6 g of analytically pure copper sulfate in 20 g of deionized w...

Embodiment 3

[0122] (3-1) Weigh SiO with an average particle size of 2 μm 2 21g of powder, and after mixing with concentrated hydrochloric acid 15mL and 126g of 30%wt alkaline silica sol (wherein the average particle size of silicon oxide is 25nm), the slurry main body is obtained, then 15g of hexamethylenetetramine is added to the slurry, and stirred It is fully dissolved to obtain a mixed slurry;

[0123] (3-2) Select a nozzle with an inner diameter of 0.25mm and install it on the jet generator, inject the mixed slurry obtained in (3-1) into 25# transformer oil at 95°C at a speed of 0.1m / s to form, and statically After aging for 4 hours, the formed spherical silica was separated from the oil and dried in vacuum at 60°C for 12 hours;

[0124] (3-3) Wash the obtained product to neutrality, then dry at 140°C for 10 hours, and bake at 550°C for 12 hours to obtain micron-sized spherical silica;

[0125] (3-4) Dissolve 5 g of analytically pure copper nitrate in 20 g of deionized water, immer...

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Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof. The hydrogenation catalyst comprises a carrier and an active component, wherein the active component is loaded on thecarrier, the carrier comprises silicon oxide modified by nitrogen-doped graphene, the active component comprises active elements, and the active element is selected from at least one of noble metal elements. The invention provides a micron-sized in-situ growth nitrogen-doped graphene wear-resistant spherical silicon oxide carrier, a hydrogenation catalyst loaded with a noble metal active component, and a preparation method of the hydrogenation catalyst, the catalyst has the characteristics of high dispersion degree of the active component, adjustable pore size, high wear resistance, high activity and good stability, and the method is simple and easy to implement, and is suitable for industrial production. The efficiency is high, and large-scale production is easy to realize.

Description

technical field [0001] The application relates to a hydrogenation catalyst, a preparation method and an application thereof, and belongs to the technical field of chemical materials. Background technique [0002] For noble metal-supported catalysts, how to increase the dispersion of noble metal particles on the carrier is a common means to reduce industrial costs on the premise of improving catalyst activity. At present, noble metal catalysts in industry are mostly prepared by impregnation method, ion exchange method, and chemical deposition precipitation method. The main idea is how to carry out further noble metal loading on the already formed carrier. present on the surface of the carrier. However, by adopting the above-mentioned conventional preparation method, it is inevitable that the loss of the catalyst surface active component noble metal due to the collision and friction between the catalysts will lead to the decrease of the subsequent reaction efficiency. For th...

Claims

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Application Information

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IPC IPC(8): B01J27/24B01J35/10B01J37/02B01J37/08B01J37/18B01J37/34C01B15/023B01J8/18
CPCB01J27/24B01J35/1061B01J35/1066B01J35/1042B01J35/1047B01J37/0201B01J37/082B01J37/18B01J37/347C01B15/023B01J8/18Y02P20/52
Inventor 栗进波王树东肖伟李大卫姜国良苏宏久吴伟杨晓野刘重阳严华马龙
Owner SHANXI LUAN MINING GRP
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