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Heavy oil hydrotreating catalyst and preparation method thereof

A heavy oil hydrogenation and catalyst technology, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, catalyst carrier, etc. It can solve the problems of unfavorable dispersion of active components, limited catalytic performance, low specific surface area of ​​carrier alumina, etc.

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

[0006] Although the catalysts disclosed in the above patents all have high pore volume, the specific surface area of ​​the carrier alumina is relatively low, which is not conducive to improving the dispersion of the active components, and has a strong interaction with the active components, resulting in Active metal sulfidation is not complete, these factors limit the further improvement of its catalytic performance in heavy oil hydrogenation

Method used

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  • Heavy oil hydrotreating catalyst and preparation method thereof
  • Heavy oil hydrotreating catalyst and preparation method thereof
  • Heavy oil hydrotreating catalyst and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0050] (1) Catalyst preparation

[0051] Weigh 600g of ammonium phosphate, dissolve it in 2000mL of deionized water to obtain solution A; grind 1000g of petroleum coke to powder, then add it to solution A, let it stand for 1.5h, then filter, and put the obtained solid sample in an oven at 110°C Dry for 5h. At 200°C, pretreat the dried solid sample with water vapor for 3 hours (the volumetric space velocity of the water vapor gas is 1200 hours -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0052] 1000g of the pretreated petroleum coke obtained above, 57.1g of pseudo-boehmite powder and 2000g of potassium hydroxide are mixed evenly, placed in a microwave heating furnace with a microwave frequency of 2450MHz, vacuumized, and under the condition of a microwave power of 0.3kw, Raise the temperature to 500°C and keep it constant for 40 minutes, then pass nitrogen gas to...

Embodiment 2

[0059] (1) Catalyst preparation

[0060] Weigh 500g of diammonium hydrogen phosphate, dissolve it in 2000mL of deionized water to obtain solution A; grind 1000g of petroleum coke to powder, then add it to solution A, leave it for 1.5h, then filter, and put the obtained solid sample in an oven at 110 Dry at ℃ for 5h. At 200°C, use water vapor to pretreat the dried solid sample for 3 hours (the volumetric space velocity of the water vapor gas is 1000h -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0061] 1000g of the pretreated petroleum coke obtained above, 85.7g of pseudoboehmite powder and 3000g of potassium hydroxide are mixed evenly, placed in a microwave heating furnace with a microwave frequency of 2450MHz, vacuumized, and under the condition of a microwave power of 0.3kw, Raise the temperature to 600°C and keep it constant for 20 minutes, then pass nitrogen ...

Embodiment 3

[0068] (1) Catalyst preparation

[0069] Weigh 400g of ammonium dihydrogen phosphate, dissolve it in 2000mL deionized water to obtain solution A; grind 1000g of petroleum coke to powder, then add it to solution A, leave it for 1.5h, then filter, and put the obtained solid sample in an oven at 110 Dry at ℃ for 5h. At 200°C, use water vapor to pretreat the dried solid sample for 3 hours (the volumetric space velocity of the water vapor gas is 800h -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0070] 1000g of the pretreated petroleum coke obtained above, 114.3g of pseudoboehmite powder and 4000g of potassium hydroxide are mixed evenly, placed in a microwave heating furnace with a microwave frequency of 2450MHz, vacuumized, and under the condition of a microwave power of 0.3kw, Raise the temperature to 400°C and keep it constant for 60 minutes, then pass nitrogen gas...

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Abstract

The invention discloses a heavy oil hydrotreating catalyst and a preparation method thereof, the preparation method is as follows: mixing petroleum coke, pseudo-boehmite powder and an activator evenlyand activating same; treating the obtained sample with an acid solution, washing and drying; and introducing the active metal component into the obtained solid sample, drying, and roasting to obtainthe heavy oil hydrotreating catalyst. The invention also provides the heavy oil hydrotreating catalyst prepared by the method. In the catalyst, the action of the carrier and the active component is weak, so that the sulfuration is more complete, more high hydrogenation active centers are easy to form, and the catalyst has higher hydrogenation activity.

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 heavy oil hydrotreating 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 structure, and su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/19B01J32/00B01J35/10B01J37/10B01J37/28C10G49/04
CPCB01J37/10B01J27/19B01J37/28B01J23/002C10G49/04B01J2523/00B01J35/617B01J35/638B01J2523/51B01J2523/68B01J2523/847
Inventor 杨涛金浩朱慧红杨光刘璐姜巧
Owner CHINA PETROLEUM & CHEM CORP