Hydrogenation catalyst, preparation method and application thereof as well as hydrofining method

A hydrogenation catalyst and hydrogenation refining technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problem of low hydrogenation catalyst activity, achieve high hydrodesulfurization activity, reduce Effect of energy consumption and improvement of production efficiency

Active Publication Date: 2012-05-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention is dedicated to improving the problem that the activity of the existing hydrogenation catalysts prepared with heteropoly acid s

Method used

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  • Hydrogenation catalyst, preparation method and application thereof as well as hydrofining method
  • Hydrogenation catalyst, preparation method and application thereof as well as hydrofining method

Examples

Experimental program
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Example Embodiment

[0014] The present invention provides a method for preparing a hydrogenation catalyst. The method comprises successively supporting a first compound and a second compound on a carrier, wherein the first compound is a heteropolyacid with a group VIB metal as the coordination atom and / Or heteropoly acid salt, the second compound is a non-metal oxo acid salt with a group VIII metal as a cation and / or an anaerobic acid salt with a group VIII metal as a cation, and the method further includes: loading Between the first compound and the second compound, the carrier carrying the first compound and NH 3 Contact; or between supporting the first compound and the second compound, supporting the quaternary ammonium salt and / or amine on the carrier supporting the first compound.

[0015] Group VIB metals and Group VIII metals are active components of hydrogenation catalysis. Therefore, the supported form of Group VIB metals and Group VIII metals on the carrier has a significant impact on the...

Example Embodiment

[0084] Example 1

[0085] This example is used to illustrate the hydrogenation catalyst and its preparation method according to the present invention.

[0086] Weigh 10,000 grams of aluminum hydroxide powder (70% by weight on a dry basis, purchased from Sinopec Changling Catalyst Branch) and 4000 grams of silica sol (containing 25% by weight of silica, purchased from Qingdao Ocean Chemical Plant), and mix them with extrusion The strip machine (manufacturer: South China University of Technology Technology Industry General Factory, model: F-26(Ⅲ)) extrudes into a clover-shaped strip with a circumscribed circle diameter of 1.4 mm, and then is dried at 120°C for 10 hours, and baked at 600°C for 3 hours. The carrier S1 is obtained. The silica content in the carrier S1 is 12.5% ​​by weight, and the alumina content is 87.5% by weight.

[0087] Weigh 200 g of carrier S1, and immerse the carrier in 170 ml of an aqueous solution containing 14.0 g of ammonium fluoride (analytical grade, produ...

Example Embodiment

[0089] Example 2

[0090] This example is used to illustrate the hydrogenation catalyst and its preparation method according to the present invention.

[0091] Take 200 g of the carrier S1 prepared in Example 1, immerse it in 170 ml of an aqueous solution containing 17.5 g of ammonium fluoride for 2 hours, then dry at 120°C for 4 hours and calcinate at 480°C for 3 hours to obtain a fluorine-containing carrier S1-2.

[0092] Impregnate the above-mentioned fluorine-containing carrier S1-2 with 167 ml of an aqueous solution containing 76.69 g of phosphomolybdic acid and 12.11 g of urea for 2 hours, then dry at 140°C for 4 hours; then use 8.81 g of ammonium citrate and 17.92 g of nickel nitrate hexahydrate 163 ml of an aqueous solution (with a nickel content of 20% by weight in terms of elements) was impregnated with the above-mentioned carrier for 2 hours, and then dried at 180°C for 5 hours to obtain a catalyst C2. The composition of the catalyst C2 calcined at 550°C for 4 hours is li...

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Abstract

The invention provides a hydrogenation catalyst, a preparation method and application thereof as well as a hydrofining method. The preparation method comprises the following steps: sequentially loading a first compound and a second compound on a carrier, wherein the first compound is heteropoly acid and / or heteropoly acid salt taking VIB group metal as a coordination atom, and the second compound is a nonmetal oxysalt taking VIII group metal as a cation and / or an anaerobic salt taking VIII group metal as a cation. The method also comprises the following steps: between the first compound loading and second compound loading, allowing the carrier loaded with the first compound to be in contact with NH3; or between the first compound loading and second compound loading, loading quaternary ammonium salts and / or amines on the carrier loaded with the first compound. The hydrogenation catalyst prepared by the method provided by the invention has higher hydrodesulfurization activity, and is suitable for being used as a catalyst in the hydrofining of petroleum distillates or coal liquefaction distillates.

Description

technical field [0001] The invention relates to a hydrogenation catalyst, its preparation method and application, and a hydrogenation refining method. Background technique [0002] The increasing awareness of environmental protection and stricter environmental regulations force the refining industry to pay more attention to the development of clean fuel production technology. How to economically and reasonably produce ultra-low sulfur oil products has become a key issue for the refining industry at present and in the future one. The development of new hydrogenation catalysts with higher activity and selectivity is one of the most economical ways to produce clean oil. [0003] Chinese patent CN1210378C discloses a method for preparing a hydrofining catalyst. The method uses heteropoly acid salt as the precursor of the active component and alumina as the carrier. The preparation process includes spray impregnation or equal volume impregnation of alumina at room temperature, ...

Claims

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Application Information

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IPC IPC(8): B01J27/188B01J27/19C10G45/08
Inventor 李会峰李明丰褚阳刘锋高晓冬夏国富聂红石亚华李大东
Owner CHINA PETROLEUM & CHEM CORP
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