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

A hydrogenation catalyst and alumina technology, applied in refining to remove heteroatoms, etc., can solve the problems of limited improvement and low activity, and achieve high desulfurization 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 phosphor with alumina being as carrier, and preparation
  • Hydrogenation catalyst of containing phosphor with alumina being as carrier, and preparation

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028]Take by weighing 2000 grams of aluminum hydroxide powder (dried rubber powder produced by Changling Refining and Chemical Company Catalyst Factory, 72% by weight on a dry basis), extrude into a cylindrical strip with a circumscribed circle diameter of 1.3 mm with an extruder, and wet the strip at 120 ℃ drying for 4 hours, and calcination at 600 ℃ for 3 hours to obtain carrier S1.

[0029] Take by weighing 200 grams of carrier S1, impregnate the above-mentioned carrier with 178 milliliters of aqueous solution containing 19.3 grams of ammonium paramolybdate (chemically pure, Beijing Chemical Plant product) for 3 hours, dry at 120 ° C for 8 hours, and then use nickel nitrate containing Chemical plant product) 50.7 grams, ammonium metatungstate (industrial grade, Sichuan Zigong cemented carbide factory product) 85.5 grams, phosphoric acid (concentration: 85% by weight, chemically pure, Beijing chemical plant product) 168 milliliters of aqueous solution impregnation 3 The wet...

example 2

[0033] Weigh 200 grams of carrier S1, impregnate the above carrier with 178 ml of aqueous solution containing 31.2 grams of ammonium paramolybdate for 3 hours, dry at 120°C for 4 hours, and then use 108.2 grams of nickel nitrate, 151.3 grams of ammonium metatungstate, and 48.7 grams of phosphoric acid The carrier was impregnated with 168 ml of aqueous solution for 3 hours, dried at 120°C for 4 hours, and calcined at 450°C for 4 hours to obtain catalyst C2. The composition of catalyst C2 after calcination is listed in Table 1.

example 3

[0035] Weigh 200 grams of carrier S1, impregnate the carrier with 178 ml of an aqueous solution containing 7.0 grams of ammonium paramolybdate, 29.2 grams of nickel nitrate, 70.6 grams of ammonium metatungstate, and 17.8 grams of phosphoric acid for 3 hours, dry at 120°C for 4 hours, and then dry at 220°C After drying for 4 hours, it was impregnated with 110 ml of an aqueous solution containing 5.9 g of ethylenediamine for 2 hours, and dried at 120° C. for 4 hours to obtain catalyst C3. The calculated molar ratio of ethylenediamine to nickel, molybdenum and tungsten as oxides was 0.25. The composition of catalyst C3 after calcination is listed in Table 1.

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Abstract

This invention provides a method for preparing hydrogenation catalyst containing phosphorus supported by aluminum oxide. The catalyst is composed of nickel oxide 1-10 wt.%, molybdena oxide and tungsten oxide 10-50 wt.%, phosphorus oxide 1-10 wt.%, and aluminum oxide. The molar ratio of tungsten oxide to molybdena oxide is 2.6-30. The method comprises introducing nickel oxide, molybdena oxide, tungsten oxide and phosphorus oxide into aluminum oxide carrier. The catalyst has such advantage as high hydrogenation activity.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and its preparation, more specifically to a phosphorus-containing hydrogenation catalyst with alumina as a carrier and its preparation. Background technique [0002] Under the hydrogenation reaction conditions, the contact of the hydrocarbon feedstock with the catalyst may occur including: hydrogenation, hydrodesulfurization, hydrodenitrogenation, hydrodemetallization, hydrodearomatization, hydroisomerization, hydrodewaxing, hydrogenation Reactions such as hydrocracking and moderate hydrocracking. The catalysts therein are generally formed by the carrier supporting metal components of Group VIB and Group VIII. The hydrogenation active metal component is usually selected from Co or Ni-Mo or Co or Ni-W, and the carrier is usually selected from alumina, silica-alumina and their modified products. These catalysts can be prepared by impregnating the support with an aqueous solution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08
Inventor 刘清河龙湘云聂红张乐石亚华李大东王锦业王哲李坚
Owner CHINA PETROLEUM & CHEM CORP
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