Hydrogenation catalyst of containing fluorin with alumina being as carrier, and preparation

A hydrogenation catalyst and catalyst technology, applied in refining to remove heteroatoms, etc., can solve the problems of limited improvement and low activity, and achieve high denitrification activity and high catalyst activity

Active Publication Date: 2006-12-06
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with the hydrogenation catalysts of traditional bimetallic components, the activity of hydrogenation catalysts containing trimetallic components provided by the prior art has been improved, but the degree of improvement is limited, and its activity is still low

Method used

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  • Hydrogenation catalyst of containing fluorin with alumina being as carrier, and preparation
  • Hydrogenation catalyst of containing fluorin with alumina being as carrier, and preparation

Examples

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Effect test

example 1

[0028] This example illustrates the preparation of alumina support.

[0029] Weigh 4000 grams of aluminum hydroxide dry rubber powder (product of Changling Refining and Chemical Company Catalyst Plant), extruded into strips with a circumscribed circle diameter of 1.3 mm, dried the wet strips at 120°C for 4 hours, and calcined at 600°C for 4 hours to obtain the carrier S1.

[0030]Weigh 200 grams of carrier S1, immerse the carrier in 167 ml of an aqueous solution containing 41.6 grams of ammonium fluoride (analytical grade, Beijing Chemical Plant) for 2 hours, dry at 120°C for 3 hours, and roast at 420°C for 3 hours to obtain fluorine-containing Alumina support. Impregnate the above-mentioned carrier with 160 ml of an aqueous solution containing 41.7 grams of ammonium paramolybdate (chemically pure, Beijing Chemical Plant) for 3 hours, dry at 120°C for 4 hours, and calcinate at 400°C for 4 hours. After cooling to room temperature, use nickel nitrate (analysis) Pure, Beijing Chemica...

example 2

[0032] Weigh 200 grams of carrier S1, immerse it in 167 ml of an aqueous solution containing 35.7 grams of ammonium fluoride for 2 hours, dry at 120°C for 3 hours, and calcinate at 400°C for 3 hours to prepare a fluoride-containing alumina carrier. Impregnate the above-mentioned carrier with 160 ml of an aqueous solution containing 26.7 g of ammonium paramolybdate for 3 hours, dry at 120°C for 4 hours, and then dry at 300°C for 4 hours. After cooling to room temperature, use 57.5 g of nickel nitrate and 108.7 g of ammonium metatungstate. The carrier was impregnated with 152 ml of the aqueous solution for 3 hours, dried at 120°C for 4 hours, and then calcined at 450°C for 4 hours to obtain catalyst C2. The composition of the calcined catalyst C2 is listed in Table 1.

example 3

[0034] Weigh 200 grams of carrier S1, immerse it in 167 ml of an aqueous solution containing 28.4 grams of ammonium fluoride for 2 hours, dry at 120°C for 3 hours, and calcinate at 420°C for 3 hours to prepare a fluoride-containing alumina carrier. Impregnate the above-mentioned carrier with 160 ml of an aqueous solution containing 22.6 g of ammonium paramolybdate for 3 hours, dry at 120°C for 4 hours, and then dry at 280°C for 4 hours. After cooling down to room temperature, use 69.8 g of nickel nitrate and 110.7 g of ammonium metatungstate. The carrier was impregnated with 153 ml of the aqueous solution for 3 hours, dried at 120°C for 4 hours, and then calcined at 450°C for 4 hours to obtain catalyst C3. The composition of the calcined catalyst C3 is listed in Table 1.

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Abstract

This invention provides a method for preparing hydrogenation catalyst containing fluorine supported by aluminum oxide. The catalyst is composed of nickel oxide 1-10 wt.%, molybdena oxide and tungsten oxide 10-50 wt.%, fluorine 1-10 wt.%, and aluminum oxide. The method comprises introducing nickel oxide, molybdena oxide, tungsten oxide and fluorine into aluminum oxide carrier. The catalyst has such advantage as high hydrogenation and denitrification activity.

Description

Technical field [0001] The invention relates to a hydrogenation catalyst and its preparation, and more specifically to a fluorine-containing hydrogenation catalyst using alumina as a carrier and its preparation. Background technique [0002] Under the conditions of the hydrogenation reaction, the contact between the hydrocarbon feedstock and the catalyst may occur including: hydrogenation, hydrodesulfurization, hydrodenitrogenation, hydrodemetalization, hydrodearomatization, hydroisomerization, hydrodewaxing, and Hydrocracking and mitigating reactions such as hydrocracking. The catalyst is usually made of a carrier supporting VIB and VIII metal components. The hydrogenation active metal component is usually selected from Co or Ni-Mo or Co or Ni-W, and the support is usually selected from alumina, silica-alumina and their modified products. These catalysts can be prepared by impregnating the support with an aqueous solution containing the metal compound and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/02
Inventor 刘学芬聂红龙湘云王奎赵新强李大东石亚华戴立顺朱玫
Owner CHINA PETROLEUM & CHEM CORP
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