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Impregnating solution of hydrogenation catalyst, its preparation method, hydrogenation catalyst and preparation method thereof

A technology of hydrogenation catalyst and impregnating solution, which is applied in the field of preparation of hydrogenation catalyst and impregnating solution of hydrogenation catalyst, and achieves the effect of simple and easy operation, suitable for industrial production and improving utilization rate

Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The addition of a complexing agent effectively improves the activity of the prepared hydrogenation catalyst, but the hydrogenation activity of the hydrogenation catalyst obtained by using a complexing agent to prepare a catalyst still has a lot of room for improvement

Method used

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Examples

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Effect test

preparation example Construction

[0017] According to the preparation method of the impregnation solution of the hydrogenation catalyst of the present invention, the aforementioned first organic complexing agent can realize the purpose of the present invention well, for the present invention, preferably in the ligand of the first organic complexing agent Contain coordination atom N and O simultaneously, more preferably described first organic complexing agent is aminocarboxylic acid (also called aminocarboxylic acid usually), aminocarboxylate (also called aminocarboxylate usually) and organic amine (such as Alcohol amine) in one or more; Further preferably described first organic complexing agent is one or more in the aminocarboxylic acid of C2-C18, the ammonia carboxylate of C2-C18 and the alcohol amine of C2-C18 multiple, further preferably the first organic complexing agent is one or more of C6-C14 aminocarboxylic acid, C6-C14 aminocarboxylate and C2-C12 alcohol amine; particularly preferably the first organ...

Embodiment 1

[0058] Take by weighing 10,000 grams of aluminum hydroxide powder (70% by weight on a dry basis, purchased from Sinopec Changling Catalyst Branch) and extrude it with an extruder (manufacturer: South China University of Technology Science and Technology Industrial General Factory, model: F-26 (III)) Form a clover-shaped strip with a circumscribed circle diameter of 1.6 mm, then dry at 120° C. for 4 hours, and bake at 600° C. for 4 hours to obtain carrier S1. The alumina in the carrier is characterized by X-ray diffraction as γ-alumina.

[0059] Preparation of aqueous solution A: Weigh 25.80 g of ethylenediaminetetraacetic acid, add 80 ml of water, 25 ml of 25% by weight ammonia water and 9.80 g of basic nickel carbonate (calculated as Ni, 44% by weight), and heat to dissolve evenly;

[0060] Prepare aqueous solution B: take by weighing 69.07 grams of ammonium citrate and 33.76 grams of ammonium heptamolybdate (as MoO 3 Calculated, 80.7% by weight), add 90 milliliters of water,...

Embodiment 2

[0063] Preparation of aqueous solution A: Weigh 22.15 g of ethylenediaminetetraacetic acid, add 80 ml of water, 25 ml of 25% by weight ammonia water and 9.80 g of basic nickel carbonate (calculated as Ni, 44% by weight), and heat to dissolve evenly;

[0064] Prepare aqueous solution B: take by weighing 46.05 grams of ammonium citrate and 33.76 grams of ammonium heptamolybdate (as MoO 3 Calculated, 80.7% by weight), add 90 milliliters of water, heat and dissolve evenly;

[0065] The aqueous solution A was added to the aqueous solution B for mixing, after stirring evenly, water was added to make the volume to 257 ml, and 200 g of the aforementioned S1 carrier was impregnated with the solution for 2 hours, and then dried at 180° C. for 4 hours to obtain catalyst C2.

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Abstract

The invention provides an impregnating solution of a hydrogenation catalyst and its preparation method. The method includes: preparing a VIII-th group metal compound and a first organic complexing agent into an aqueous solution A; preparing a VIB-th group metal compound into an aqueous solution B; and mixing the aqueous solution A and the aqueous solution B. Specifically, the ligand of the first organic complexing agent at least contains the coordination atom N. The invention also provides a hydrogenation catalyst and a preparation method thereof. Compared with current catalysts, the hydrogenation catalyst provided in the invention has high hydrodesulfurization activity. For example, a mixed solution of n-decane with a 4, 6-dimethyldibenzothiophene (4, 6-DMDBT) content of 0.59wt% is adopted as the raw material, and hydrodesulfurization activity contrast evaluation is performed on the catalyst provided in the invention and a contrast catalyst. In terms of a contrast catalyst activity of 100, the hydrodesulfurization activity of the catalyst provided in the invention can reach 120.

Description

technical field [0001] The invention relates to a method for preparing an impregnation solution of a hydrogenation catalyst, an impregnation solution of a hydrogenation catalyst prepared by the method, a method for preparation of a hydrogenation catalyst and a hydrogenation catalyst prepared by the method. Background technique [0002] Increasing awareness of environmental protection and stricter environmental regulations force the oil 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 one of the key issues that the oil refining industry needs to solve at present and in a certain period of time 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 oils. [0003] As we all know, the support is one of the important components of the hydrogenation ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/02B01J23/883B01J29/80C10G45/12C10G45/08
Inventor 李会峰李明丰褚阳刘锋夏国富王奎习远兵聂红
Owner CHINA PETROLEUM & CHEM CORP
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