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Prepn process of hydroprocessing catalyst

A hydrogenation treatment and catalyst technology, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problems of easy generation of harmful mist, complex production process, and fast catalyst deactivation, etc., to achieve effective It is beneficial to metal dispersion, simplifies the preparation process, and improves the effect of interaction strength

Active Publication Date: 2005-04-27
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But due to TiCl 4 The hydrolysis process is easy to produce harmful mist, which requires the use of special equipment in the production process, the production process is more complicated, the production is difficult, the safety is low, and the cost is high
CN1070418A adopts the catalyst prepared by the full kneading method, uses titanium and boron as improvers, and its initial activity is better, but due to its strong acidity, NH 4 - The acidity of TPD reaches 1.449mmol / g, the carbon deposition speed is fast, the catalyst deactivation is fast, and the service life is short
CN1098433A adopts the combined production process of mixing and impregnating, and still needs to enter the impregnating step after kneading and kneading some active metals, the production process is long, and the production cost is high

Method used

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  • Prepn process of hydroprocessing catalyst
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Industrial-grade powdered molybdenum oxide (containing MoO 3 96.8w%) 134.0g add 530g (containing TiCl 3 7.5w%) titanium trichloride aqueous solution, stirred for 55 minutes and then filtered, the filter cake was set aside, and the filtrate was kept. Take by weighing 500g the silicon-alumina dry rubber powder (containing SiO2) that contains burnt residue and is 69.8w%. 2 9.3%), 92.0g industrial-grade powdered basic nickel carbonate (containing NiO 56.3w%), 12g asparagus powder, and mix homogeneously. Mix the wet filter cake with 150g water to make slurry, add it to the above solid powder mixture as evenly as possible, knead for 30 minutes, then add 140mL filtrate, knead for 90 minutes, and extrude the obtained plastic body into Φ0.82mm bars on the extruder This strip was dried at 80°C for 6 hours and activated in a roasting furnace at 550°C for 3 hours to obtain this example.

Embodiment 2

[0017] The molybdenum oxide in embodiment 1 is used 175g tungsten oxide (containing WO 3 98.3w%) instead, namely the cost example.

Embodiment 3

[0025] This example is the physical and chemical properties and activity evaluation results of the above catalysts.

[0026] The physical and chemical properties of the catalysts are listed in Table 1.

[0027] The properties of raw oil used for evaluation are shown in Table 2.

[0028] When evaluating catalysts, hydrogen and feed oil are mixed and passed through the catalyst bed from top to bottom, first through the hydrodesulfurization catalyst, and then through the catalysts of the above examples, in one pass mode, and the hydrodesulfurization catalyst is the same batch of industrial products. The process conditions used to evaluate the catalysts in each case are the same, which are: hydrogen partial pressure, 14.6MPa; reaction temperature, 400°C; total liquid hourly space velocity, 0.40h -1 ; Hydrogen oil ratio (v / v), 1000. The volume of the reactor is: φ25mm×2000mm. Catalyst loading volumes are: hydrodesulfurization catalyst, 120cm 3 ; Catalysts of the above examples,...

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Abstract

The present invention discloses the preparation process of hydroprocessing catalyst. The preparation process has regulated course of kneading aluminum hydroxide monohydrate, metal salt, assistant and other material to promote the dispersion of metal, and all the materials are kneaded into plastic body in once course before extrusion, drying and high temperature activation to prepare catalyst. The preparation process has low cost and obviously raised catalyst activity.

Description

technical field [0001] The present invention relates to a method for preparing a hydrotreating catalyst, especially distillate oil / residue hydrodenitrogenation (HDN), especially heavy / residue hydrogenation carbon residue reduction (HDCR) and heavy / residue deep processing A method for the preparation of a hydrodesulfurization (HDS) catalyst. Background technique [0002] During the hydrotreating process of residual oil, since the residual oil contains a large amount of heavy metals such as nickel and vanadium, which accumulate on the catalyst, it is difficult to regenerate the deactivated catalyst. And because the residual oil has high viscosity and contains a large amount of S, N and other impurities, the space velocity of the residual oil hydrotreating process is very small, so the amount of catalyst used is greatly increased compared with the distillate oil hydrogenation process. Therefore, one of the important factors determining the technical and economical feasibility ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06B01J23/85B01J23/882B01J23/883B01J37/00B01J37/04C10G45/08
Inventor 张皓苏晓波袁胜华
Owner CHINA PETROLEUM & CHEM CORP
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