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A kind of hydrogenation catalyst and preparation method thereof

A technology for hydrogenation catalyst and hydrogenation metal, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical elements of heterogeneous catalysts, etc. Force, the effect of ensuring stability

Active Publication Date: 2022-07-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the catalyst can take into account the hydrodeacidification activity and hydrodemetallization activity and the ability to accommodate impurities such as metals, some small-pore alumina will be distributed on the outer surface of the carrier during the preparation of the carrier, which is easily blocked by impurities such as metals.

Method used

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  • A kind of hydrogenation catalyst and preparation method thereof
  • A kind of hydrogenation catalyst and preparation method thereof
  • A kind of hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Prepare mixed solution

[0055] Dissolve 171.7 g of ferric nitrate and 37.0 g of ammonium dihydrogen citrate in water to prepare 2200 mL of mixed solution A, where the concentration of ferric nitrate is 0.08 g / mL, and the concentration of ammonium dihydrogen citrate is 0.018 g / mL.

[0056] (2) Carrier preparation

[0057] 1000g of small-pore alumina was formed into spherical particles by rolling in a ball rolling machine. During the ball forming process, 1200 mL of mixed solution A was sprayed at the same time. The ball rolling machine speed was 35 rpm. 0.4~0.5mm spherical alumina A; then weigh 100g alumina A into the ball rolling machine, evenly sprinkle 700g macroporous alumina in the rolling process, and spray 840mL mixed solution A at the same time, the rolling speed of the ball machine is 35 0.8~1.0mm spherical alumina B was obtained after the completion of ball formation. Alumina B was treated with water vapor at a temperature of 150°C and a time of 4h, and ...

Embodiment 2

[0064] (1) Prepare mixed solution

[0065] Dissolve 227.3 g of ferric nitrate and 53.0 g of diammonium hydrogen citrate in water to prepare 1800 mL of mixed solution A, wherein the concentration of ferric nitrate is 0.126 g / mL, and the concentration of diammonium hydrogen citrate is 0.027 g / mL.

[0066] (2) Carrier preparation

[0067] 1000g of small-pore alumina was formed into spherical particles by rolling in a ball rolling machine. During the ball forming process, 1200 mL of mixed solution A was sprayed at the same time. The ball rolling machine speed was 35 rpm. 0.6~0.7mm spherical alumina A; then weigh 100g of alumina A and put it into the ball rolling machine, evenly sprinkle 363 g of macroporous alumina during the rolling process, and spray 435 mL of mixed solution A at the same time, and the rolling speed of the ball machine is 35 1.0~1.2mm spherical alumina B was obtained after the ball was formed. Alumina B was treated with water vapor, the temperature was 160 °C,...

Embodiment 3

[0074] (1) Prepare mixed solution

[0075] Dissolve 235.7 g of ferric nitrate and 59.0 g of ammonium citrate in water to prepare 1800 mL of mixed solution A, wherein the concentration of ferric nitrate is 0.168 g / mL, and the concentration of ammonium citrate is 0.042 g / mL.

[0076] (2) Carrier preparation

[0077] 1000g of small-pore alumina was formed into spherical particles by rolling in a ball rolling machine. During the ball forming process, 1200 mL of mixed solution A was sprayed at the same time. The ball rolling machine speed was 35 rpm. 0.8~1.0mm spherical alumina A; then weigh 100g of alumina A and put it into the ball rolling machine, evenly sprinkle 114 g of macroporous alumina during the rolling process, and spray 95 mL of mixed solution A at the same time, the rolling speed of the ball machine is 35 1.0~1.2mm spherical alumina B was obtained after the ball was formed. Alumina B was treated with water vapor, the temperature was 170 °C, the time was 4h, and the v...

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Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof. The preparation method comprises the following steps: dissolving iron-containing inorganic salt and ammonium citrate salt in water to obtain solution A; forming small-pore alumina into spheres, and adding the solution at the same time A, to obtain alumina A, put alumina A into a ball rolling machine, and evenly add macroporous alumina and solution A during the rolling process to obtain alumina B; alumina B is treated and dried to obtain alumina C; The catalyst is obtained after the active metal component is supported. The catalyst obtained by the method of the invention has uneven pore distribution, not only has high hydrodemetallization activity and the ability to accommodate impurities such as metals, but also has high desulfurization activity, and the catalyst is not easily blocked by impurities such as metals, which can ensure Catalyst stability during long-term operation of the plant.

Description

technical field [0001] The invention belongs to the technical field of oil refining and chemical industry, and relates to a catalytic material and a preparation method thereof, in particular to a hydrogenation catalyst and a preparation method thereof. Background technique [0002] In recent years, the quality of crude oil is getting worse and the demand for light oil products is increasing year by year. Therefore, it is of great practical significance to develop the deep processing of heavy oil and increase the added value of products. As the main processing method, hydrogenation technology faces great challenges, and it is urgent to develop better hydrogenation processes and hydrogenation catalysts with higher activity. The reaction performance of heavy oil hydrogenation catalysts depends not only on the inherent catalytic properties of the active components, but also closely related to the properties of the catalyst carrier. The specific surface area, pore structure and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883B01J23/882B01J35/10C10G45/08
CPCB01J23/883B01J23/882B01J23/002C10G45/08B01J2523/00C10G2300/202C10G2300/205B01J35/615B01J35/635B01J2523/31B01J2523/68B01J2523/842B01J2523/847B01J2523/845Y02P20/52
Inventor 金浩杨光朱慧红刘璐孙素华杨涛
Owner CHINA PETROLEUM & CHEM CORP
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