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Fluorinated hydrogenation catalyst with silicon oxide-alumina as carrier and its production

A technology of silica and alumina, applied in physical/chemical process catalysts, aromatics hydrogenation refining, chemical instruments and methods, etc., can solve the problems of low activity and limited improvement, and achieve the effect of high activity

Active Publication Date: 2006-11-01
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
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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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  • Fluorinated hydrogenation catalyst with silicon oxide-alumina as carrier and its production

Examples

Experimental program
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Effect test

example 1

[0027] Take by weighing 2000 grams of aluminum hydroxide powder (dried rubber powder produced by Changling Refining and Chemical Company Catalyst Factory, 70% by weight on a dry basis) and 631 grams of silica sol (Qingdao Ocean Chemical Plant product) containing 25% of silicon dioxide, after mixing Extrude into a butterfly bar with a circumscribed circle diameter of 1.3 mm using an extruder, dry the wet bar at 120° C. for 4 hours, and bake it at 600° C. for 3 hours to obtain carrier S1. The silicon oxide content in the carrier S1 is 10.1% by weight.

[0028]Weigh 200 grams of carrier S1, impregnate the carrier with 176 ml of aqueous solution containing 16.9 grams of ammonium fluoride (analytical grade, product of Beijing Chemical Plant) for 2 hours, dry at 120°C for 3 hours, and roast at 480°C for 3 hours to obtain fluorine-containing Silica-alumina support. With 170 milliliters of the aqueous solution containing ammonium paramolybdate (chemically pure, Beijing Chemical Plant ...

example 2

[0030] Weigh 200 g of carrier S1, impregnate the carrier with 176 ml of an aqueous solution containing 19.1 g of ammonium fluoride for 2 hours, dry at 120° C. for 3 hours, and calcinate at 420° C. for 3 hours to obtain a fluorine-containing silica-alumina carrier. Impregnate the above-mentioned carrier with 170 ml of an aqueous solution containing 24.7 grams of ammonium paramolybdate for 3 hours, dry at 280°C for 8 hours, then impregnate with 160 ml of an aqueous solution containing 24.6 grams of nickel nitrate and 66.7 grams of ammonium metatungstate for 3 hours, and wet the strip at 120 ℃ drying for 4 hours and 500 ℃ calcining for 4 hours to obtain catalyst C2. The composition of catalyst C2 after calcination is listed in Table 1.

example 3

[0032] Weigh 200 g of carrier S1, impregnate the carrier with 176 ml of an aqueous solution containing 8.9 g of ammonium fluoride for 2 hours, dry at 120° C. for 3 hours, and calcinate at 420° C. for 3 hours to obtain a fluorine-containing silica-alumina carrier. Impregnate the above-mentioned carrier with 170 ml of an aqueous solution containing 17.5 grams of ammonium paramolybdate for 3 hours, dry at 280°C for 8 hours, then impregnate with 162 ml of an aqueous solution containing 44.3 grams of nickel nitrate and 74.4 grams of ammonium metatungstate for 3 hours, and wet the strip at 120 ℃ drying for 4 hours, followed by calcination at 500 ℃ for 4 hours to obtain catalyst C3. The composition of catalyst C3 after calcination is listed in Table 1.

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Abstract

A fluoric hydrocatalyst with silicon oxide-aluminum oxide as its carrier contains nickel oxide (1-10 Wt%), molybdenum oxide and tungsten oxide (10-50), F (1-10) and carrier (rest). It has high hydrorefining performance. It is prepared by introducing F, Mo, Ni and W to carrier.

Description

technical field [0001] The invention relates to a hydrogenation catalyst and its preparation, more specifically to a fluorine-containing 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 containing t...

Claims

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Application Information

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IPC IPC(8): B01J27/132C10G45/08C10G45/50
Inventor 龙湘云聂红王奎刘学芬李大东石亚华张乐胡志海朱政
Owner CHINA PETROLEUM & CHEM CORP
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