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Phosphor-contained hydrogenation catalyst with silicon oxide-alumin as carrier and its production

A technology of hydrogenation catalyst and silicon oxide, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of limited improvement and low activity, and achieve the effect of activity improvement

Active Publication Date: 2006-11-01
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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  • Phosphor-contained hydrogenation catalyst with silicon oxide-alumin as carrier and its production
  • Phosphor-contained hydrogenation catalyst with silicon oxide-alumin as carrier and its production
  • Phosphor-contained hydrogenation catalyst with silicon oxide-alumin as carrier and its production

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preparation example Construction

[0015] A preferred method for preparing silica-alumina is obtained by mixing and calcining alumina and / or a precursor of alumina with silica and / or a precursor of silica. Based on the carrier, in the silica-alumina, the content of silicon oxide is preferably 2-45% by weight, and the content of aluminum oxide is 55-98% by weight; more preferably, the content of silicon oxide is 5-40% by weight , the content of alumina is 60-95% by weight. The calcination temperature is 500-650°C and the calcination time is 1-10 hours, preferably the calcination temperature is 550-620°C and the calcination time is 2-8 hours.

[0016] The carrier can be made into various easy-to-handle moldings according to different requirements, such as microspheres, spheres, tablets or strips, and the like. Forming can be carried out by conventional methods, for example, it can be prepared by mixing alumina and / or its precursors with silicon oxide and / or silicon oxide precursors, extrusion molding and firing....

example 1

[0029] Take by weighing 2000 grams of aluminum hydroxide powder (dry rubber powder produced by Changling Refining and Chemical Company Catalyst Factory, dry basis 0.71) and 1039 grams of silica sol (Qingdao Ocean Chemical Plant product) containing 30% of silicon dioxide, mix and squeeze The strip machine was extruded into a butterfly-shaped strip with a circumscribed circle diameter of 1.4 mm. The wet strip was dried at 120° C. for 4 hours and calcined at 600° C. for 3 hours to obtain the carrier S1. The silicon oxide content in the S1 carrier was 18.0% by weight.

[0030] Take by weighing 200 grams of carrier S1, use 13.3 grams of ammonium paramolybdate (analytical pure, Beijing chemical factory product), phosphoric acid (analytical pure, 85% concentration, Beijing chemical factory product) 18.3 grams, nickel nitrate (analytical pure, Beijing chemical factory product) Factory product) 24.0 grams, ammonium metatungstate (industrial grade, Sichuan Zigong Cemented Carbide Factory...

example 2

[0034] Weigh 200 grams of carrier S1, impregnate the above carrier with 176 ml of an aqueous solution containing 16.7 grams of ammonium paramolybdate for 3 hours, dry at 120°C for 4 hours, and then dry at 220°C for 4 hours, then use 39.4 grams of nickel nitrate, ammonium metatungstate The carrier was impregnated with 168 ml of an aqueous solution of 82.1 g and 10.2 g of phosphoric acid for 3 hours, dried at 120° C. for 4 hours, and then dried at 240° C. for 4 hours to obtain catalyst C2. The composition of catalyst C2 after calcination is listed in Table 1.

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Abstract

A P-contained hydrocatalyst with silicon oxide-aluminum oxide as its carrier contains nickel oxide (1-10 Wt%), molybdenum oxide and tungsten oxide (10-50), phosphorus oxide (1-9) and carrier (rest). It has high hydrorefining performance. It is prepared by introducing P, Mo, Ni and W to carrier.

Description

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

Claims

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Application Information

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IPC IPC(8): B01J27/188C10G45/08
Inventor 刘学芬刘清河龙湘云聂红石亚华李大东张乐王哲张润强
Owner CHINA PETROLEUM & CHEM CORP
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