Heavy oil hydrogenation catalyst, preparation method thereof and heavy oil hydrotreating method

A heavy oil hydrogenation and catalyst technology, applied in catalyst activation/preparation, catalyst support, chemical instruments and methods, etc., can solve the problem of difficult to obtain a support with bimodal pore distribution, etc., and achieve excellent hydrogenation performance, high hydrode The effect of metal activity

Active Publication Date: 2022-05-03
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the preparation schemes described in the prior art, it is difficult to obtain supports with a bimodal pore distribution that can improve catalyst performance

Method used

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  • Heavy oil hydrogenation catalyst, preparation method thereof and heavy oil hydrotreating method
  • Heavy oil hydrogenation catalyst, preparation method thereof and heavy oil hydrotreating method
  • Heavy oil hydrogenation catalyst, preparation method thereof and heavy oil hydrotreating method

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Embodiment approach

[0019] According to a preferred embodiment of the present invention, the carrier is prepared from a phosphorus-containing pseudo-boehmite, and the phosphorus-containing alumina obtained after roasting the phosphorus-containing pseudo-boehmite has a bimodal pore structure, Characterized by mercury intrusion porosimetry, the phosphorus-containing alumina pore distribution is located at a pore volume V of 3-100 nm 1 The pore volume V is 1.0-2.0mL / g, and the pore distribution is located at 100-5000nm 2 2.0-5.0mL / g, the total pore volume V is 3.0-7.0mL / g, and the conditions of the calcination include: the temperature is 350-950°C, and the time is 2-8 hours.

[0020] According to a more preferred embodiment of the present invention, characterized by mercury intrusion porosimetry, the phosphorus-containing alumina pore distribution is located at a pore volume V of 3-100 nm. 1 The pore volume V is 1.2-1.8mL / g, and the pore distribution is located at 100-5000nm 2 is 2.1-3.5mL / g, and ...

preparation example 1

[0084] (1) Preparation of Al 2 o 3 Concentration is 2L of aluminum sulfate solution of 50g / L, add 5mL concentrated phosphoric acid (concentration 85% by weight, the same below), 9.5g boric acid, obtain the aluminum sulfate solution containing phosphorus, boron element. In a 5-liter reaction tank, the above-mentioned aluminum sulfate solution and an 8% ammonia solution were added in parallel for reaction and precipitation, and then filtered (using XRD to characterize the hydrated aluminum oxide precipitation as an amorphous structure), the reaction temperature was 40 ° C, Control the flow rate of the ammonia solution to make the pH of the reaction system 5.5. In a 5-liter reaction tank, filter cake, deionized water and ammonia water are mixed and beaten. The amount of ammonia water is used to make the pH value of the slurry 8.0. The slurry is aged at 65°C for 60 minutes and filtered, and the filter cake is beaten with deionized water. After washing twice, the filter cake was ...

preparation example 2

[0087] (1) Preparation of Al 2 o 3 Concentration is 90g / L aluminum sulfate solution 2L, add 6mL concentrated phosphoric acid, 51g magnesium sulfate heptahydrate, obtain the aluminum sulfate solution containing phosphorus, magnesium element. In a 5-liter reaction tank, the above-mentioned aluminum sulfate solution containing phosphorus and magnesium elements and the ammonia solution with a concentration of 8% are added in parallel to carry out reaction precipitation, and then filter (the hydrated aluminum oxide precipitation is characterized by XRD as an amorphous structure), The reaction temperature is 45° C., and the flow rate of the ammonia solution is controlled so that the pH of the reaction system is 6.0. In a 5-liter reaction tank, filter cake, deionized water and ammonium bicarbonate were mixed and beaten. The amount of ammonia water was used to make the pH value of the slurry 9.2. The slurry was aged at 40°C for 240 minutes and then filtered. The filter cake was deion...

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Abstract

The present invention relates to the field of heavy oil hydrogenation, and particularly discloses a heavy oil hydrogenation catalyst and a preparation method thereof, and a heavy oil hydrotreatment method, the catalyst comprises a phosphorus-containing alumina carrier having a bimodal pore structure and hydrogenation active metals loaded on the carrier, the hydrogenation active metals comprise a VIII group metal and a VIB group metal, on the basis of the total amount of the catalyst and in terms of oxide, the content of group VIB metal is 0.2-10 wt%, the content of group VIII metal is not higher than 5 wt%, and the content of phosphorus in the carrier in terms of P2O5 is 0.1-8.0 wt%; the pore volume V mesopores is 1.0 to 1.5 mL / g, the pore volume V macropores is 1.0 to 1.8 mL / g, and the total pore volume V total is 2.0 to 3.3 mL / g. When the heavy oil hydrogenation catalyst provided by the invention is used for heavy oil processing, the heavy oil hydrogenation catalyst shows relatively good hydrodemetallization activity and deasphaltene activity.

Description

technical field [0001] The invention relates to the field of heavy oil hydrogenation, in particular to a heavy oil hydrogenation catalyst, a preparation method thereof and a heavy oil hydrogenation treatment method. Background technique [0002] As crude oil becomes heavier and inferior, the difficulty of crude oil processing increases, and the yield of light oil products decreases. However, the market demand for high-quality light oil products continues to increase, and environmental protection regulations are becoming more and more inclusive. strict. At present, the processing and full utilization of heavy oil, especially residual oil, is becoming a major topic of concern in the global oil refining industry, and residual oil hydrogenation technology is a widely used processing technology in heavy oil processing technology, and is recognized as an economical and environmentally friendly deep processing technology . Residual oil contains a large number of heteroatoms such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883B01J23/882B01J23/28B01J23/888B01J37/02B01J21/04B01J27/16B01J32/00B01J35/10B01J37/03B01J37/08B01J37/00C10G45/08
CPCB01J23/883B01J23/882B01J23/28B01J23/888B01J23/002B01J37/0201B01J37/088B01J21/04B01J27/16B01J35/1019B01J35/1047B01J37/031B01J37/082B01J37/0018C10G45/08B01J2523/00C10G2300/202C10G2300/205C10G2300/206B01J2523/305B01J2523/31B01J2523/51B01J2523/68B01J2523/847B01J2523/845B01J2523/69B01J2523/55Y02P20/52
Inventor 孙淑玲杨清河胡大为曾双亲户安鹏王振邓中活
Owner CHINA PETROLEUM & CHEM CORP
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