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Hydrotreatment catalyst carrier, catalyst and preparation method thereof

A catalyst carrier, hydrotreating technology, applied in catalyst activation/preparation, catalyst carrier, physical/chemical process catalyst, etc., can solve the problem of metal and other impurities clogging and other issues

Active Publication Date: 2020-07-07
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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  • Hydrotreatment catalyst carrier, catalyst and preparation method thereof
  • Hydrotreatment catalyst carrier, catalyst and preparation method thereof
  • Hydrotreatment catalyst carrier, catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) Carrier preparation

[0049] 1000g of pseudo-boehmite powder A is made into spherical particles by rolling in a ball rolling machine. During the ball forming process, 850mL of ammonium dihydrogen phosphate aqueous solution with a concentration of 0.027g / mL is sprayed at the same time, and the speed of the rolling ball machine is 35 RPM, after ball forming, prepare 0.4~0.5mm spherical carrier precursor A; then weigh 100g carrier precursor A and put it into the ball rolling machine, evenly sprinkle 1000g pseudo-boehmite powder B in the rolling process , while spraying 850mL of ammonium dihydrogen phosphate aqueous solution with a concentration of 0.027g / mL, the speed of the ball rolling machine was 35 rpm, and after the ball formation was completed, the 0.8~1.0mm spherical carrier precursor B was prepared. Carry out water vapor treatment on the carrier precursor B, the temperature is 190°C, the time is 4h, and the volume space velocity between the water vapor and the ...

Embodiment 2

[0056] (1) Carrier preparation

[0057] 1000g of pseudo-boehmite powder A is made into spherical particles by rolling in a ball rolling machine. During the ball forming process, 850mL of diammonium hydrogen phosphate aqueous solution with a concentration of 0.046g / mL is sprayed at the same time, and the rolling ball machine rotates at 35 RPM, after ball forming, prepare 0.6~0.7mm spherical carrier precursor A; then weigh 100g carrier precursor A and put it into the ball rolling machine, evenly sprinkle 520g pseudoboehmite powder B in the rolling process , while spraying 440mL of diammonium hydrogen phosphate aqueous solution with a concentration of 0.046g / mL, the speed of the rolling ball machine is 35 rpm, and after the ball forming is completed, the spherical carrier precursor B of 1.0~1.2mm is obtained. Carry out water vapor treatment on the carrier precursor B, the temperature is 200°C, the time is 4h, and the volume space velocity between the water vapor and the carrier p...

Embodiment 3

[0064] (1) Carrier preparation

[0065] 1000g of pseudo-boehmite powder A is formed into spherical particles by rolling in a ball rolling machine. During the ball forming process, 850 mL of ammonium phosphate aqueous solution with a concentration of 0.069 g / mL is sprayed at the same time. The speed of the rolling ball machine is 35 rpm. After the ball forming is completed, a 0.8-1.0mm spherical carrier precursor A is obtained; then 100g of the carrier precursor A is weighed and put into a rolling ball machine, and 136g of pseudoboehmite powder B is evenly sprinkled in during the rolling process, and at the same time Spray 116 mL of ammonium phosphate aqueous solution with a concentration of 0.069 g / mL, and the rolling ball machine rotates at 35 rpm. After the balls are formed, a 1.0-1.2 mm spherical carrier precursor B is prepared. Carry out water vapor treatment on the carrier precursor B, the temperature is 210°C, the time is 4h, and the volume space velocity between the wat...

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Abstract

The invention discloses a hydrotreating catalyst carrier, a catalyst and a preparation method thereof. The preparation method of the carrier comprises the following steps: subjecting pseudo-boehmite powder A to pelletizing forming, meanwhile, spraying an ammonium phosphate aqueous solution, and obtaining a carrier precursor A; putting the carrier precursor A into a ball rolling machine, and uniformly adding pseudo-boehmite powder B and an ammonium phosphate aqueous solution in the rolling process to obtain a carrier precursor B; pre-treating the carrier precursor B with steam-containing gas toobtain a carrier precursor C, and then drying and roasting the carrier precursor C to obtain the carrier; and further loading a hydrogenation active metal component on the obtained carrier to obtainthe catalyst. The prepared catalyst has high hydrogenation demetalization activity and metal and other impurity capacity, also has high desulfurization activity, is not easily blocked by metal and other impurities, and can ensure the stability of the catalyst in the long-period operation process of a device.

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 carrier, a catalyst and a preparation method thereof. Background technique [0002] In recent years, the quality of crude oil has deteriorated day by day, but the demand for light oil products has increased year by year. Therefore, it is of great practical significance to develop deep processing of heavy oil and increase the added value of products. As the main processing method, hydrogenation technology is facing great challenges, and it is urgent to develop better hydrogenation processes and hydrogenation catalysts with higher activity. The reactivity of heavy oil hydrogenation catalysts depends not only on the intrinsic catalytic properties of the active components, but also on the properties of the catalyst support. The specific surface area, pore structu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/04B01J27/19B01J32/00B01J35/10B01J37/02B01J37/10B01J37/28C10G45/08
CPCB01J37/10B01J27/19B01J37/28B01J37/0063B01J37/0223B01J21/04C10G45/08C10G2300/205B01J35/397B01J35/617B01J35/615B01J35/638B01J35/635Y02P20/52
Inventor 杨涛金浩朱慧红杨光刘璐姜巧
Owner CHINA PETROLEUM & CHEM CORP
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