Slag oil hydro-demetallization catalyst and its preparing method

A technology of residual oil hydrogenation and catalyst, which is applied in the direction of refining to remove heteroatoms, etc., to achieve the effects of performance improvement, easy implementation, and simple operation

Active Publication Date: 2006-06-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a new method for preparing a hydrodemetallization catalyst and the catalyst prepared by the method for the shortcomings of the existing method for preparing a hydrodemetallization catalyst

Method used

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  • Slag oil hydro-demetallization catalyst and its preparing method

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example 1

[0033] Take by weighing aluminum sulfate (Beijing chemical plant product) 666 grams, add deionized water and dissolve into molar concentration and be the solution a1 of 0.3, take by weighing 1000 grams of ammonium bicarbonate (Beijing chemical plant product), add deionized water and dissolve into molar concentration of 2.5 solution b1. Add solution a1 and solution b1 to a 10-liter gelation tank in a co-current manner for reaction. During the reaction, control the pH value to 7.5 and the temperature at 40°C. The resulting white precipitate is precipitated at 40°C for 1.5 hours. Filter, the filter cake is washed three times with 10 times (weight) of deionized water at 40°C, and dry at 120°C for 4 hours in a drying oven to obtain ammonium aluminum carbonate F1, whose chemical formula is (NH 4 ) 0.2 AlO(OH)(HCO 3 ) 0.2 4H 2 O, the sulfate ion content is 0.3% by weight.

example 2

[0035] Take by weighing 483 grams of aluminum chloride (product of Beijing Chemical Plant), add deionized water to dissolve into a solution a2 with a molar concentration of 1, take by weighing 800 grams of ammonium bicarbonate (product of Beijing Chemical Plant), add deionized water to dissolve into a molar concentration is solution b2 of 2. Add solution a2 and solution b2 into a 10-liter gelation tank simultaneously in parallel flow for reaction. During the reaction, the pH value is controlled to be 8.0 and the temperature is 30°C. The resulting white precipitate is precipitated at 30°C for 1.5 hours and filtered. , the filter cake was washed twice with 20 times (weight) of deionized water at 30°C, and dried at 120°C for 4 hours in a drying box to obtain ammonium aluminum carbonate F2, whose chemical formula is (NH 4 ) 0.4 AlO(OH)(HCO 3 ) 0.4 2H 2 O, the chloride ion content is 0.4% by weight.

example 3

[0037] Take by weighing aluminum nitrate (Beijing chemical plant product) 750 grams, add deionized water and dissolve into molar concentration and be 1 solution a3, take by weighing 800 grams of ammonium bicarbonate (Beijing chemical plant product), add deionized water and dissolve into molar concentration of 2.5 solution b3. Add solution a3 and solution b3 to a 10-liter gelation tank in parallel and react simultaneously. During the reaction process, the pH value is controlled at 7.0 and the temperature is 25°C. The resulting white precipitate is precipitated at 25°C for 1.5 hours. Filter and dry at 120°C for 4 hours in a drying oven to obtain ammonium aluminum carbonate F3, whose chemical formula is (NH 4 ) 0.5 A1O(OH)(HCO 3 ) 0.5 ·3H 2 O.

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Abstract

The slag oil hydrodemetallizing catalyst contains a kind of double-peak hole alumina carrier and supported Mo and / or W and Ni and / or Co metal components. The double-peak hole alumina carrier has pore volume of 0.8-1.6 ml / g, specific surface area 150-350 sq m / g, pore volume fraction of 10-30 nm size holes in 40-90 % and pore volume fraction of 100-2000 nm size holes in 10-60 %, and is prepared through mixing alumina hydrate and ammonium aluminum carbonate, forming and roasting. The slag oil hydrodemetallizing catalyst has simple preparation process and high hydrodemetallizing performance.

Description

technical field [0001] The invention relates to a hydrorefining catalyst and a preparation method thereof, more specifically to a residual oil hydrodemetallization catalyst and a preparation method thereof. Background technique [0002] The deep processing of residual oil is not only conducive to improving the utilization rate of crude oil and alleviating the tense trend of energy supply, but also reducing environmental pollution and achieving clean utilization of energy. Sulfur, nitrogen, metal and other impurities in crude oil are mostly concentrated in the residual oil, and these impurities will pollute the corresponding catalysts in the subsequent processing, so these impurities must be removed by hydrotreating first. Compared with distillate oil, residual oil contains a large number of macromolecular reactants such as asphaltenes and colloids, and their diffusion process in the catalyst will directly affect the hydrogenation reaction activity o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08
Inventor 胡大为杨清河刘滨聂红牛传峰戴立顺石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
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