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Hydrogenation catalyst and preparation method and application thereof and hydrorefining method

A hydrogenation catalyst and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problem of low catalyst activity and achieve high hydrodesulfurization activity

Active Publication Date: 2013-11-06
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 catalysts with hydrogenation effect prepared with heteropoly acid salts as precursors is still low, and provides a hydrogenation catalyst with significantly improved hydrogenation activity and its preparation method and Applications and Hydrofinishing Methods

Method used

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  • Hydrogenation catalyst and preparation method and application thereof and hydrorefining method
  • Hydrogenation catalyst and preparation method and application thereof and hydrorefining method

Examples

Experimental program
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preparation example Construction

[0064] According to the preparation method of the catalyst with hydrogenation function of the present invention, the method may further include loading an auxiliary agent on the carrier. Specifically, the method for loading auxiliary agents on the carrier includes: before loading the heteropolyacid and the second compound on the carrier, contacting the carrier with a solution containing the compound containing the auxiliary agent, and calcining the carrier .

[0065]The auxiliary agent is preferably one or more of fluorine, phosphorus and boron. Correspondingly, the auxiliary agent-containing compound is preferably one or more of a fluorine-containing compound, a phosphorus-containing compound, and a boron-containing compound. Various. Preferably, the additive-containing compound is hydrofluoric acid, hydrofluoric acid salt, fluorosilicic acid, fluorosilicate, ammonium fluoride, phosphoric acid, phosphorous acid, phosphate, phosphite, boric acid, ammonium borate, One or more...

Embodiment 1

[0081] This example is used to illustrate the hydrogenation catalyst and its preparation method according to the present invention.

[0082] Take by weighing 10000 grams of aluminum hydroxide powder (70% by weight on a dry basis, purchased from Sinopec Changling Catalyst Branch) and 1787 grams of silica sol (containing 25% by weight of silicon dioxide, purchased from Qingdao Ocean Chemical Factory), mix them with an extrusion The strip machine (manufacturer: South China University of Technology Science and Technology Industrial General Factory, model: F-26(Ⅲ)) extruded into clover-shaped strips with a circumscribed circle diameter of 1.4mm, then dried at 120°C for 10 hours, and dried in the air at 600°C Calcined for 3 hours to obtain carrier S1. The content of silicon oxide in support S1 was 6% by weight and that of aluminum oxide was 94% by weight.

[0083] Weigh 200 grams of carrier S1, impregnate the carrier S1 with 259 ml of an aqueous solution containing 18.2 grams of am...

Embodiment 2

[0086] This example is used to illustrate the hydrogenation catalyst and its preparation method according to the present invention.

[0087] Get 200 grams of the carrier S1 prepared in Example 1, impregnate 258 milliliters of an aqueous solution containing 22.3 grams of ammonium fluoride (analytical grade, purchased from Beijing Chemical Plant) for 2 hours, then dry at 120° C. for 4 hours, and in air at 480° C. Calcined for 3 hours to obtain fluorine-containing carrier S1-2.

[0088] The above-mentioned fluorine-containing carrier S1-2 was impregnated with 258 ml of an aqueous solution containing 77.55 g of phosphomolybdic acid, 0.38 g of zinc nitrate hexahydrate and 10.10 g of nickel nitrate hexahydrate for 2 hours, then dried at 140°C for 4 hours, and then dried at 300°C in air Calcined for 5 hours; then the above carrier was impregnated with 256 ml of an aqueous solution containing 9.82 g of ammonium citrate and 8.05 g of nickel nitrate hexahydrate for 3 hours, and then dri...

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Abstract

The invention provides a hydrogenation catalyst and a preparation method and application thereof and a hydrorefining method. The hydrogenation catalyst according to the invention comprises a carrier, and a heteropoly salt and a compound loaded on the carrier, wherein the first compound is a nonmetallic oxygen-containing acid salt in which VIII family metals serve as positive ions and / or an oxygen-free acid salt in which VIII family metals serve as positive ions; coordination atoms of the heteropoly salt are VIB family metals; counter ions of the heteropoly salt are hydrogen ions and ions of a second metal, or ions of the second metal; and the second metal is selected from at least one of IB family metals, IIB family metals, IIA family metals and rare earth metals, or selected from at least one of IB family metals, IIB family metals, IIA family metals and rare earth metals and at least one of VIII family metals. The hydrogenation catalyst according to the invention has higher hydrodesulfurization activity.

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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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/19B01J27/188C10G45/08
Inventor 李会峰李明丰褚阳刘锋夏国富王奎聂红
Owner CHINA PETROLEUM & CHEM CORP