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A kind of carrier, catalyst and its preparation method and application for hydrotreating

A technology of hydrotreating and catalyst carrier, applied in catalyst activation/preparation, physical/chemical process catalyst, catalyst carrier, etc., can solve the problems of small asphaltene micelles, unfavorable residue demetallization reaction, etc.

Active Publication Date: 2020-06-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] CN1205314C discloses a method for preparing heavy oil hydrogenation demetallization and desulfurization catalysts. Two types of composites are used for the carrier alumina, one of which is alumina powder calcined at 1100°C. This method can form more pores with a diameter of 15 nm or more. The pores are penetrating, but still too small for the asphaltene micelles, which is not conducive to the demetallization reaction of residual oil

Method used

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  • A kind of carrier, catalyst and its preparation method and application for hydrotreating
  • A kind of carrier, catalyst and its preparation method and application for hydrotreating

Examples

Experimental program
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Effect test

Embodiment 1

[0063]Weigh 260 grams of pseudoboehmite dry rubber powder (manufactured by Wenzhou Jingjing Alumina Co., Ltd.), 60 grams of activated carbon with a particle size of 8 microns, and 8 grams of celadon powder, mix the above physicals evenly, and add an appropriate amount of 1.5% aqueous solution of acetic acid was kneaded, extruded into strands, dried at 100°C for 6 hours, and calcined at 700°C for 5 hours in an air atmosphere to obtain the alumina carrier intermediate ZA1.

[0064] Weigh 100 grams of the above-mentioned alumina carrier intermediate ZA1, place it in 800 grams of ammonium bicarbonate solution, the mass concentration of the ammonium bicarbonate solution is 20% aqueous solution, transfer the mixed material into an autoclave and seal it, and heat it at 15°C Raise the temperature to 100°C at a speed of 10°C / min and keep the temperature for 3 hours, then raise the temperature to 150°C at a speed of 10°C / min and keep the temperature for 6 hours, then dry the carrier at 1...

Embodiment 2

[0067] Weigh 260 grams of pseudo-boehmite dry rubber powder (manufactured by Wenzhou Jingjing Alumina Co., Ltd.), 30 grams of activated carbon with a particle size of 10 microns, and 8 grams of celadon powder, mix the above physically, and add an appropriate amount of 1.5% aqueous solution of acetic acid was kneaded, extruded into strands, dried at 100°C for 6 hours, and calcined at 700°C for 5 hours in an air atmosphere to obtain the alumina carrier intermediate ZA2.

[0068] Weigh 100 grams of the above-mentioned alumina carrier intermediate ZA2, place it in 600 grams of ammonium bicarbonate solution, and the mass concentration of the ammonium bicarbonate solution is 18% in an aqueous solution, transfer the mixed material into an autoclave and seal it, and heat it at 15°C Raise the temperature to 100°C at a speed of 10°C / min and keep the temperature for 3 hours, then raise the temperature to 140°C at a speed of 10°C / min and keep the temperature for 6 hours, then dry the carri...

Embodiment 3

[0071] Weigh 25 grams of activated carbon with a particle size of 6 microns, spray and impregnate the above-mentioned activated carbon with 7.5 mL of ammonium hydrogen phosphate solution with a mass concentration of 28%, and mix the activated carbon with 260 grams of pseudoboehmite dry rubber powder (Wenzhou Jing Crystal Alumina Co., Ltd.), 8 grams of Squatia powder, mixed evenly, adding an appropriate amount of 1.5% acetic acid aqueous solution, kneaded, extruded, and dried at 100 ° C for 6 hours, and dried at 700 °C in an air atmosphere ℃ for 5 hours to obtain the alumina carrier intermediate ZA3.

[0072] Weigh 100 grams of the above-mentioned alumina carrier intermediate ZA3, place it in 500 grams of ammonium bicarbonate solution, the mass concentration of the ammonium bicarbonate solution is 14% aqueous solution, transfer the mixed material into an autoclave and seal it, and heat it at 15°C Raise the temperature to 100°C at a speed of 10°C / min and keep the temperature for...

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Abstract

The invention discloses a carrier for hydrotreating, a catalyst and a preparation method thereof, and the application of the hydrotreating catalyst in the residual oil hydrotreating process. The carrier is an alumina-based carrier, including main alumina and rod-shaped alumina, at least part of the rod-shaped alumina is distributed on the outer surface of the main alumina and in micron-sized channels with a pore diameter of 3-10 μm. The preparation method of the carrier is as follows: first prepare the carrier intermediate, then immerse the carrier intermediate in the ammonium bicarbonate solution, then seal and heat treat, after the heat treatment, the material is dried and calcined to obtain the hydrogenation catalyst carrier. The carrier can be used as a catalyst carrier for residual oil hydrotreating, and can be made into a variety of catalysts for graded loading, and can still achieve high demetallization, desulfurization and nitrogen removal rates under long-term operation.

Description

technical field [0001] The present invention relates to a hydrotreating catalyst carrier, a hydrotreating catalyst and its preparation method and application, in particular to a carrier for residual oil hydrotreating, a catalyst and its preparation method and a hydrotreating catalyst used in residual oil Application in hydrotreating process. Background technique [0002] At present, hydroprocessing is still the most important means to produce high-quality, environment-friendly petroleum products. The core of hydroprocessing technology is the catalyst. For the hydrogenation of heavy components of petroleum (such as VGO, especially residual oil), the pore size and pore volume of the catalyst will directly affect the activity of the catalyst. [0003] Through pores are very important to petroleum catalysts, especially residue oil macromolecules need large through pores for metal deposition, so that the catalyst can achieve the maximum metal capacity and improve the service lif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J32/00B01J23/883C10G45/08B01J35/00
CPCB01J23/883C10G45/08B01J37/0207B01J21/04C10G45/60C10G45/68C10G50/00B01J2235/00B01J35/55B01J2235/30B01J23/24B01J23/74B01J23/85B01J37/0018B01J35/647B01J37/0217B01J37/0236B01J37/08B01J37/00B01J35/50B01J35/60B01J35/615B01J35/635B01J35/651
Inventor 季洪海张会成凌凤香王少军沈智奇杨卫亚郭长友王丽华
Owner CHINA PETROLEUM & CHEM CORP