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Carrier for hydrotreating, preparation method and applications thereof, and catalyst and applications thereof

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

Active Publication Date: 2019-05-07
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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  • Carrier for hydrotreating, preparation method and applications thereof, and catalyst and applications thereof
  • Carrier for hydrotreating, preparation method and applications thereof, and catalyst and applications thereof

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, and a preparation method thereof, a catalyst and applications of a hydrotreating catalyst in residue oil hydrotreating processes. The carrier is analumina-based carrier, which comprises main body alumina and rod-like alumina, wherein at least part of the rod-like alumina are distributed on the outer surface and in the micro-scale pore channelswith a pore diameter of 3-10 [mu]m of the main body alumina. The preparation method of the carrier comprises: preparing a carrier intermediate, immersing the carrier intermediate in an ammonium bicarbonate solution, carrying out sealing heat treatment, drying the treated material, and calcining to prepare the hydrotreating catalyst carrier. According to the present invention, the carrier can be used as the residue oil hydrotreating catalyst carrier, can be made into a plurality of catalysts for grading filling, and can achieve high demetallization rate, high desulfurization rate and high denitrification rate 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 Applications(China)
IPC IPC(8): C10G45/08B01J32/00B01J23/883
CPCB01J23/883C10G45/08B01J37/0207B01J21/04C10G45/60C10G45/68C10G50/00B01J23/24B01J23/74B01J23/85B01J37/0018B01J35/647B01J37/0217B01J37/0236B01J37/08B01J37/00B01J35/50B01J35/60B01J35/615B01J35/635B01J35/651
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
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