Hydrogenation catalyst with silicon oxide-alumina as carrier and its preparation

A technology of hydrogenation catalyst and silicon oxide, which is applied in the direction of refining to remove heteroatoms, etc., can solve the problem of low catalyst activity and achieve high catalyst activity and high desulfurization effect

Active Publication Date: 2006-10-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the activity of this catalyst containing three hydrogenation active metal components provided by the prior art is still relatively low

Method used

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  • Hydrogenation catalyst with silicon oxide-alumina as carrier and its preparation
  • Hydrogenation catalyst with silicon oxide-alumina as carrier and its preparation

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] Take by weighing 2920 grams of aluminum hydroxide powder (dried rubber powder produced by Sinopec Changling Branch Catalyst Factory, dry basis 70% by weight) and 908 grams of sol (Qingdao Ocean Chemical Factory product, silicon dioxide content is 25% by weight), with The extruder was extruded into a clover-shaped strip with a circumscribed circle diameter of 1.4 mm, and the wet strip was dried at 120°C for 4 hours and calcined at 620°C for 3 hours to obtain the carrier S 1 , carrier S 1 The silica content in the medium was 10.0% by weight.

[0026] Weigh the carrier S 1 100 grams, impregnated with 96 ml of aqueous solution containing 10.7 grams of ammonium molybdate for 2 hours, dried at 240°C for 5 hours, then impregnated with 87 ml of aqueous solution containing 19.6 grams of nickel nitrate and 28.2 grams of ammonium metatungstate for 1.5 hours, and dried at 160°C 6 hours, catalyst C was obtained 1. Catalyst C 1 The compositions after firing are listed in Table 1...

example 2

[0028] Weigh the carrier S 1 100 grams, impregnated with 96 ml of an aqueous solution containing 8.3 grams of ammonium molybdate for 3 hours, dried at 120°C for 5 hours, then impregnated with 88 ml of an aqueous solution containing 20.0 grams of nickel nitrate and 33.8 grams of ammonium metatungstate for 1.5 hours, and dried at 160°C 6 hours, catalyst C was obtained 2 . Catalyst C 2 The compositions after firing are listed in Table 1.

example 3

[0030] Weigh the carrier S 1 100 grams, impregnated with 96 ml of an aqueous solution containing 5.8 grams of ammonium molybdate and 27.9 grams of glycerol for 3 hours, dried at 120°C for 5 hours, and then impregnated with 85 ml of an aqueous solution containing 19.3 grams of nickel nitrate and 56.9 grams of ammonium metatungstate 1.5 hours, drying at 140°C for 6 hours to obtain catalyst C 3 . The molar ratio of glycerol to nickel, molybdenum and tungsten as oxides was calculated to be 1.0. Catalyst C 3 The compositions after firing are listed in Table 1.

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Abstract

Disclosed is a hydrogenation catalyst using silicon oxide and alumina as the carrying agent and its preparing process, after sintering, the catalyst comprises nickel oxide 1-10 wt%, molybdenum oxide and tungsten oxide with the total content of greater than 10-50 wt%, and balancing carrying agent.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and its preparation, more specifically to a hydrogenation catalyst with silicon oxide-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 contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08
Inventor 王锦业聂红石亚华李大东胡志海门卓武龙湘云毛以朝张润强朱玫
Owner CHINA PETROLEUM & CHEM CORP
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