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Non-loading type nickel-based bio-oil hydrodeoxygenation catalyst and preparation method thereof

A technology of deoxidation catalyst and nickel-based catalyst, which is applied in the direction of carbon-based compound preparation, physical/chemical process catalysts, chemical instruments and methods, etc., to achieve the effect of increasing density, low equipment requirements, and cheap and easy-to-obtain reagents

Inactive Publication Date: 2016-03-23
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are few reports on non-supported nickel-based bio-oil hydrodeoxygenation catalysts and preparation methods.

Method used

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  • Non-loading type nickel-based bio-oil hydrodeoxygenation catalyst and preparation method thereof
  • Non-loading type nickel-based bio-oil hydrodeoxygenation catalyst and preparation method thereof
  • Non-loading type nickel-based bio-oil hydrodeoxygenation catalyst and preparation method thereof

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preparation example Construction

[0022] A kind of unsupported nickel-based bio-oil hydrodeoxygenation catalyst of the present invention and preparation method thereof, such as figure 1 As shown, the specific steps include:

[0023] (1) Dissolve the surfactant in water to prepare a solution with a mass fraction of 0.9-3.6%, and then dissolve urea, soluble nickel salt, soluble phosphorus salt or (and) soluble tungsten salt in the above solution respectively, in which urea The mass fraction of the soluble nickel salt is 0.9-3.6%, the mass fraction of the soluble nickel salt is 0.3-1.1%, the mass fraction of the soluble phosphorus salt or (and) soluble tungsten salt is 0.1-0.4%, and the magnetic stirring is 5-15min, forming a light green turbidity solution.

[0024] (2) The turbid solution obtained in step (1) was crystallized at 100-300° C. for 2-16 hours, and filtered to obtain a filter residue.

[0025] (3) Wash the filter residue obtained in step (2) with water and absolute ethanol for 3 to 5 times, and the...

example 1

[0030] The present invention is a non-supported nickel-based bio-oil hydrodeoxygenation catalyst and a preparation method thereof, and the specific steps include:

[0031] (1) Dissolve the surfactant in water to make a solution with a mass fraction of 0.9%, and then dissolve urea, soluble nickel salt, soluble phosphorus salt and soluble tungsten salt in the above solution respectively, wherein the mass fraction of urea is 0.9% %, the mass fraction of soluble nickel salt is 0.3%, the mass fraction of soluble phosphorus salt is 0.1%, the mass fraction of soluble tungsten salt is 0.1%, magnetic stirring for 10min forms a light green turbid solution.

[0032] (2) The turbid solution obtained in step (1) was crystallized at 100°C for 15 hours, and filtered to obtain a filter residue.

[0033] (3) Wash the filter residue obtained in step (2) four times with water and absolute ethanol, and then perform centrifugation at a speed of 4000 rpm for 10 minutes. Finally, dry the precipitate...

example 2

[0039] The present invention is a non-supported nickel-based bio-oil hydrodeoxygenation catalyst and a preparation method thereof, and the specific steps include:

[0040] (1) Dissolve the surfactant in water to make a solution with a mass fraction of 1.8%, and then dissolve urea, soluble nickel salt and soluble tungsten salt in the above solution respectively, wherein the mass fraction of urea is 1.8%, and the soluble nickel The mass fraction of salt is 0.6%, the mass fraction of soluble tungsten salt is 0.2%, and magnetically stirred for 15 minutes to form a bright green turbid solution.

[0041] (2) The turbid solution obtained in step (1) was crystallized at 150° C. for 10 h, and filtered to obtain a filter residue.

[0042] (3) Wash the filter residue obtained in step (2) three times with water and absolute ethanol, and then perform centrifugation at a speed of 3000 rpm for 15 minutes. Finally, dry the precipitate in an oven for 5 hours at a temperature of 100°C, an unsu...

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Abstract

The invention provides a preparation method of a non-loading type nickel-based bio-oil hydrodeoxygenation catalyst, and belongs to the technical field of catalyst synthesis. The method includes the steps of firstly, dissolving a surface active agent in water, dissolving urea in water, dissolving soluble nickel salt, soluble phosphor salt or (and) soluble tungsten salt in water, and conducting crystallization for 2-16 h at a temperature of 100-300 DEG C; secondly, washing filtered-out filter residues with water and absolute ethyl alcohol, obtaining a non-loading type nickel-based catalyst after drying is conducted; thirdly, placing the non-loading type nickel-based catalyst and bio-oil in an intermittent reactor, and conducting the hydrodeoxygenation reaction for 1-10 h under the condition of the hydrogen pressure of 2-4 MPa and the temperature of 100-250 DEG C to obtain a bio-oil hydrodeoxygenation product. The synthesis method is easy, convenient to use, efficient and gentle in reaction condition, the metal content of the unit volume of obtained non-loading type nickel-based catalyst is high, the number of hydrogenation activity sites is large, and the catalysis efficiency of the catalyst is improved by dozens of times compared with that of a traditional catalyst.

Description

technical field [0001] The invention relates to a non-loaded nickel-based bio-oil hydrodeoxygenation catalyst and a preparation method thereof, belonging to the technical field of catalyst synthesis. Background technique [0002] In recent years, as a commonly used catalyst, nickel-based catalyst has the advantages of excellent activity and selectivity, good stability and low price. The excellent catalytic performance of nickel-based catalyst in hydrogenation reaction has attracted people's attention. attention. The current nickel-based hydrogenation catalysts are mainly supported catalysts. However, since the effective active metal loading in supported catalysts is constrained by the specific surface area and pore volume of the carrier, it is difficult to increase significantly on the existing basis, so that the catalyst activity can be improved. restricted. Unsupported catalysts do not use a support, and the active metal component is not deposited on a preformed support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/188B01J23/888B01J27/185C07C41/18C07C43/23C07C45/51C07C49/403C07C1/20C07C13/18
Inventor 李蓉刘静雷建都何静王璐莹
Owner BEIJING FORESTRY UNIVERSITY
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