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Carrier, catalyst, preparation method and application thereof for hydrotreating

A hydrogenation treatment and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of small asphaltene micelles and unfavorable demetallization of residual oil Reaction and other issues, to achieve good stability, facilitate mass transfer and diffusion, increase the effect of deposition

Active Publication Date: 2022-02-08
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, catalyst, preparation method and application thereof for hydrotreating
  • Carrier, catalyst, preparation method and application thereof for hydrotreating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Weigh 500 grams of pseudoboehmite A1 (produced by Wenzhou Jingjing Alumina Co., Ltd., with a weight content of 70% on a dry basis) and roast at 470°C for 5 hours to prepare alumina.

[0055] Weigh 50 grams of the above-mentioned alumina and place it in 300 grams of 10% ammonium bicarbonate aqueous solution, transfer the mixed material into an autoclave, seal it, heat it at 150°C for 4 hours, and then dry the carrier at 100°C for 8 hours. The aluminum oxide was submerged in a 40% polyethylene glycol-6000 (molecular weight: 6000) solution for 1.5 hours, and then the carrier was dried at 100°C for 8 hours to obtain rod-shaped alumina clusters.

[0056] Weigh 85 grams of pseudo-boehmite A1 (manufactured by Wenzhou Jingjing Alumina Co., Ltd., with a weight content of 70% on a dry basis), 50 grams of the above-mentioned rod-shaped alumina clusters, and 1.5 grams of scallop powder, and mix the above-mentioned materials evenly , adding an appropriate amount of aqueous solution ...

Embodiment 2

[0059] Weigh 500 grams of pseudoboehmite A1 (produced by Wenzhou Jingjing Alumina Co., Ltd., with a weight content of 70% on a dry basis) and roast at 450°C for 6 hours to prepare alumina.

[0060] Weigh 50 grams of the above-mentioned alumina and place it in 250 grams of ammonium bicarbonate aqueous solution with a mass concentration of 12%, transfer the mixed material into an autoclave, seal it, heat it at 140°C for 6 hours, and then dry the carrier at 110°C for 6 hours. The aluminum oxide was submerged in a 25% polyethylene glycol-6000 (molecular weight: 6000) solution for 1.5 hours, and then the carrier was dried at 120°C for 6 hours to obtain rod-shaped alumina clusters.

[0061] Weigh 120 grams of pseudo-boehmite A1 (manufactured by Wenzhou Jingjing Alumina Co., Ltd., with a dry weight content of 70%), 30 grams of the above-mentioned rod-shaped alumina clusters, and 1.5 grams of scallop powder, and mix the above-mentioned materials evenly. Add an appropriate amount of aq...

Embodiment 3

[0064] Weigh 500 grams of pseudoboehmite A1 (produced by Wenzhou Jingjing Alumina Co., Ltd., with a weight content of 70% on a dry basis) and roast at 460°C for 5.5 hours to prepare alumina.

[0065] Weigh 50 grams of the above-mentioned alumina and place it in 200 grams of 18% ammonium bicarbonate aqueous solution, transfer the mixture into an autoclave, seal it, heat it at 120°C for 6 hours, and then dry the carrier at 115°C for 6 hours. The above-mentioned alumina was completely immersed in a polyethylene glycol-6000 solution with a mass concentration of 15% and soaked for 1.5 hours, and then the carrier was dried at 118°C for 6 hours to obtain rod-shaped alumina clusters.

[0066] Weigh 120 grams of pseudo-boehmite A1 (manufactured by Wenzhou Jingjing Alumina Co., Ltd., with a weight content of 70% on a dry basis), 10 grams of the above-mentioned rod-shaped alumina clusters, and 1.5 grams of scallop powder, and mix the above-mentioned materials evenly , adding an appropria...

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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, which contains rod-shaped alumina clusters, the length of the rod-shaped alumina is 1-6µm, the diameter is 100-300nm, and the outer diameter of the rod-shaped alumina clusters is 5-25µm. The preparation method of the carrier comprises: roasting pseudo-boehmite A to obtain alumina; immersing the alumina in an aqueous solution of ammonium bicarbonate for sealing heat treatment, drying, and immersing in polyethylene glycol solution, and drying the material after immersion, Rod-shaped alumina clusters are obtained; then the pseudo-boehmite B is kneaded with the above-obtained rod-shaped alumina clusters to form, and the formed product is dried and calcined to obtain a 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): B01J23/00B01J23/883C10G45/08
Inventor 季洪海凌凤香王少军张会成沈智奇杨卫亚郭长友王丽华
Owner CHINA PETROLEUM & CHEM CORP
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