Hydrotreatment catalyst and its preparing method

A hydroprocessing and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of low activity of loaded hydroprocessing catalysts, and achieve the effect of performance improvement

Active Publication Date: 2006-07-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a new method for preparing a hydrotreating catalyst and the catalyst prepared by the method for the low activity of the supported hydrotreating catalyst prepared by the existing method

Method used

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  • Hydrotreatment catalyst and its preparing method

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Experimental program
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Effect test

Embodiment 1

[0027] The method provided by the invention and the catalyst prepared by the method are illustrated.

[0028] Dissolve 666 grams of aluminum sulfate with deionized water into a solution a1 with a molar concentration of 0.5, and dissolve 800 grams of ammonium bicarbonate with deionized water into a solution b1 with a molar concentration of 2.5. At room temperature, solution a1 and solution b1 were simultaneously added to a 10-liter gelation tank for reaction in a co-current manner. During the reaction, the pH value was controlled to be 6.5, and the temperature was raised to 55°C and sank at this temperature for 1.5 hours, and then filtered. The filter cake was washed three times with 10 times (by weight) deionized water at 55° C., and filtered to obtain filter cake c1.

[0029]26.5 grams of ammonium bicarbonate was dissolved with 350 grams of deionized water to form solution d1, and 97.5 grams of nickel nitrate was dissolved with 350 grams of deionized water to form solution e1...

Embodiment 2

[0032] The method provided by the invention and the catalyst prepared by the method are illustrated.

[0033] Get 135 grams of SB powder (product of Condea, Germany, dry basis 74%), add 4 liters of deionized water for beating. 22.1 grams of ammonium bicarbonate was dissolved in 350 grams of deionized water to form solution d2, and 117 grams of nickel nitrate was dissolved in 350 grams of deionized water to form solution e2. Under stirring, d2 and e2 solutions were added to the above-mentioned alumina hydrate slurry concurrently, the temperature was raised to 60° C., and sedimentation was carried out for 2 hours. Filter to obtain filter cake f2. Wherein the molar ratio of carbonate to group VIII metal component is 1.45.

[0034] Dissolve 16.5 grams of ammonium molybdate and 29.4 grams of ammonium metatungstate in 500 grams of deionized water to form solution h2. Add 3 liters of deionized water to the filter cake f2 obtained above to make a slurry, heat it to 95°C, then add t...

Embodiment 3

[0036] The method provided by the invention and the catalyst prepared by the method are illustrated.

[0037] Get 137 grams of CD powder (Changling Refinery Catalyst Factory product, dry basis 73%), add 4 liters of deionized water for beating. 31.8 grams of ammonium bicarbonate was dissolved in 350 grams of deionized water to form solution d3, and 81.3 grams of nickel nitrate was dissolved in 350 grams of deionized water to form solution e3. Under stirring, d3 and e3 solutions were added to the above-mentioned alumina hydrate slurry concurrently, the temperature was raised to 75°C, and sedimentation was carried out for 1 hour. Filter to obtain filter cake f3. Wherein the molar ratio of carbonate to group VIII metal component is 0.7.

[0038] Dissolve 23.8 grams of ammonium molybdate and 20.4 grams of ammonium metatungstate in 500 grams of deionized water to form solution h3. Add 3 liters of deionized water to the filter cake f3 obtained above to make a slurry, heat it to 11...

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Abstract

The invention discloses a making method of hydrogen-adding disposal catalyst, which comprises the following steps: 1) preparing slurry with hydrated aluminum oxide; 2) mixing the carbonate solution and VIII valence metal salt solution and 1) slurry; stewing at 20-150 deg C for 0.5-10 h; 3) mixing the VIB valence metal salt solution and 2) slurry; stewing at 40-150 deg C for 1-6 h; 4) modeling the 3) product; drying at 100-200 deg C for 1-6 h; sintering at 350-600 deg C for 1-6 h. The catalyst possesses higher hydrogenation active property, which can be applied in hydrogenation refining or hydrogenation disposal reaction for kinds of distillation oil.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst and a preparation method thereof. Background technique [0002] Under hydrotreating reaction conditions, the reactions that may occur when the hydrocarbon feedstock contacts the catalyst include: hydrogenation, hydrodesulfurization, hydrodenitrogenation, hydrodemetallization, hydrodearomatization, hydroisomerization, hydrodecomposition Waxes, hydrocracking and mild hydrocracking reactions. In general, a hydroprocessing catalyst consists of a support and a hydrogenation active metal component supported on the support. The hydrogenation active metal component therein is usually selected from cobalt and / or nickel of group VIII, molybdenum and / or tungsten of group VIB and combinations thereof. Common supports are selected from alumina, silica-alumina and modifications thereof. These catalysts can be prepared by impregnating the carrier with an aqueous solution contai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/85B01J37/03C10G45/08
Inventor 左东华杨清河刘滨聂红石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
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