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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 salts as precursors is still low, and provides a hydrogenation catalyst and its preparation method and application as well as a hydrogenation refining method

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

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preparation example Construction

[0014] The invention provides a method for preparing a hydrogenation catalyst, the method comprising successively loading a first compound and a second compound on a carrier, wherein the first compound is a heteropolyacid with a Group VIB metal as a coordination atom and / or heteropoly acid salt, the second compound is a non-metal oxo acid salt with Group VIII metal as cation and / or anaerobic acid salt with Group VIII metal as cation, the method also includes: Between the first compound and the second compound, the carrier loaded with the first compound and NH 3 contacting; or between loading the first compound and the second compound, loading the quaternary ammonium salt and / or amine on the carrier loaded with the first compound.

[0015] Group VIB metals and Group VIII metals are the active components of hydrogenation catalysis, therefore, the loading form of Group VIB metals and Group VIII metals on the support has a significant impact on the hydrogenation activity of the f...

Embodiment 1

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

[0086] Take by weighing 10000 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 silicon dioxide, purchased from Qingdao Ocean Chemical Plant), mix them with an extrusion Strip machine (manufacturer: South China University of Technology Science and Technology Industrial General Factory, model: F-26(Ⅲ)) was extruded into a clover-shaped strip with a circumscribed circle diameter of 1.4 mm, then dried at 120°C for 10 hours, and roasted at 600°C for 3 hours. Vector S1 is obtained. The content of silicon oxide in support S1 was 12.5% ​​by weight and that of aluminum oxide was 87.5% by weight.

[0087] Weigh 200 grams of carrier S1, impregnate the carrier with 170 milliliters of aqueous solution containing 14.0 grams of ammonium...

Embodiment 2

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

[0091] Take 200 grams of carrier S1 prepared in Example 1, impregnate with 170 ml of aqueous solution containing 17.5 grams of ammonium fluoride for 2 hours, then dry at 120°C for 4 hours, and bake at 480°C for 3 hours to obtain fluorine-containing carrier S1-2.

[0092] With 167 milliliters of aqueous solutions containing 76.69 grams of phosphomolybdic acid and 12.11 grams of urea, impregnate the above-mentioned fluorine-containing carrier S1-2 for 2 hours, then dry at 140° C. for 4 hours; 163 ml of an aqueous solution (with a nickel content of 20% by weight in terms of elements) was impregnated with the carrier for 2 hours, and then dried at 180° C. for 5 hours to obtain catalyst C2. The composition of catalyst C2 after calcination at 550° C. for 4 hours is listed in Table 2.

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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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