Hydrogenation catalyst with active metal component concentration in gradient increase and distribution and preparation method thereof

A technology for hydrogenation catalyst and active metal, applied in the field of hydrogenation catalyst and preparation, can solve the problems of poor gradient distribution of active metal components, difficult to control the gradient distribution of active metal components, etc., and achieves good hydrogenation activity and stability, The effect of reduced manufacturing costs and broad application prospects

Active Publication Date: 2010-12-29
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the distribution gradient of the active metal component is poor, and it is not easy to control the gradient distribution of the active metal component in the catalyst particles.

Method used

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  • Hydrogenation catalyst with active metal component concentration in gradient increase and distribution and preparation method thereof
  • Hydrogenation catalyst with active metal component concentration in gradient increase and distribution and preparation method thereof
  • Hydrogenation catalyst with active metal component concentration in gradient increase and distribution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this example, Al 2 o 3 As a carrier, the water absorption rate is 1.10mL / g. Catalysts with active metal components of Mo and Ni were prepared by saturated spray immersion method.

[0025] Weigh 150g of Al 2 o 3 Carrier, spray immersion 100mL ammonia solution with a concentration of 5%, drop 65mL containing 29.8g ammonium molybdate (containing MoO 3 82m%) and 27.0g of nickel nitrate (containing NiO 25.2m%) ammonia solution in the impregnating solution and stirred, dripping while spraying, 15 minutes to complete the spraying. After homogenizing in the spraying equipment for 10 minutes, dry at 60°C for 2 hours, take it out and dry at 120°C for 4 hours, and then bake in air at 500°C for 3 hours to obtain the catalyst, coded as C-1.

Embodiment 2

[0027] This example uses 1.5m% SiO 2 Al 2 o 3 As a carrier, the water absorption rate is 1.10mL / g. Catalysts with active metal components of Mo and Co were prepared by saturated spray immersion method.

[0028] Weigh 150g carrier, spray 100mL concentration of 5% ammonia solution, drop 65mL containing 29.8g ammonium molybdate (containing MoO 3 82m%) and 27.0g of ammonia solution of cobalt nitrate (containing CoO25.2m%) in the impregnating solution and stirred, and sprayed while dripping, and the spraying was completed in 10 minutes. After being homogenized for 10 minutes in the spray-dipping equipment, it was dried at 120°C for 5 hours, and then calcined in air at 500°C for 4 hours to obtain a catalyst, coded as C-2.

Embodiment 3

[0030] In this example, 1.0m% SiO 2 and 1.5m%TiO 2 Al 2 o 3 As a carrier, the water absorption rate is 1.10mL / g. The catalyst with active metal components of W and Ni was prepared by saturated spray immersion method.

[0031] Weigh 150g carrier, spray 100mL containing 10g ammonium metatungstate (containing WO 3 82m%) and 8g of nickel nitrate (containing NiO 25.2m%) ammonia solution, drop into 65mL containing 19.8g of ammonium metatungstate (containing WO 3 82m% mass) and 19.0g nickel nitrate (containing NiO 25.2m%) ammonia solution in the impregnation solution and stirred, while spraying while dripping, 20 minutes to complete the spraying. After homogenizing in the spraying equipment for 5 minutes, dry at 60°C for 2 hours, take it out and dry at 120°C for 6 hours, and then bake it in air at 500°C for 5 hours to obtain the catalyst, coded as C-3. vExample 4

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Abstract

The invention relates to a hydrogenation catalyst with active metal component concentration in gradient increase and distribution and a preparation method thereof. The preparation method comprises the following steps of: mixing compounds of metal in VIB and/or VIII family with deionized water or ammonia to prepare a metal impregnating solution by using Al2O3 or Al2O3 containing SiO2, TiO2 and ZrO2 as a vector; preparing the hydrogenation catalyst by using a saturated impregnation method; gradually adding denser metal solution for saturated impregnation of the vector by preparing more dilute solutions of metal in VIB and/or VIII family or deionized water; or impregnating the vector first with the metal impregnating solution with low concentration and then with the metal impregnating solution with high concentration by preparing metal solutions of different concentrations; drying for 1 to 8 hours at 80 DEG C to 150 DEG C; and baking for 2 to 6 hours in an air of 300 DEG C to 650 DEG C. The catalyst has the advantages of high desulfurization, denitrification, residual carbon removing activity and stability, simple preparation and lower preparation cost and is suitable for the field of heavy oil hydrogenation.

Description

technical field [0001] The invention relates to a hydrogenation catalyst with a gradient increasing distribution of active metal components and a preparation method thereof, which can be used for hydrogenation upgrading and conversion of heavy oil, especially for vacuum wax oil, coking wax oil, deasphalted oil, Upgrading and conversion of atmospheric and vacuum residues. Background technique [0002] As crude oil becomes heavier and inferior worldwide, and environmental protection regulations become increasingly stringent, the market demand for light oil products is increasing year by year. The development of deep processing of heavy oil is an urgent task for the oil refining industry, and hydrogenation technology is the main processing method. Facing great challenges, it is urgent to develop better hydrogenation processes and hydrogenation catalysts with higher activity. In terms of catalysts, there is an urgent need to develop catalysts with higher desulfurization, denitr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/888B01J23/883B01J23/882B01J37/02B01J37/08C10G45/08
Inventor 赵愉生赵元生谭青峰程涛张上崔瑞利
Owner PETROCHINA CO LTD
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