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Furfural hydrogenation catalyst, preparation method and applications thereof, and method for preparing furfuryl alcohol through liquid-phase hydrogenation of furfural

A technology of hydrogenation catalysts and additives, which is applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., and can solve the problem of a large amount of copper metal, high consumption, and increased catalyst costs, etc. problem, achieve the effect of stabilizing the reactive center, changing the coordination environment, and promoting surface enrichment

Active Publication Date: 2018-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Chinese patent application CN1404922 discloses a Cu-Cr catalyst with the addition of elemental nickel, which is prepared by coprecipitation method. The conditions for furfural liquid phase hydrogenation are 180-200°C and 3.5-5.0MPa hydrogen pressure, and the catalyst cannot be recycled.
[0006] Chinese patent applications CN1398670 and CN1562477 respectively disclose Cu-Cr catalysts added with Group VIII noble metals Pt and Pd. These two catalysts have better activity, but are expensive and cannot be recycled.
Although this catalyzer can be applied mechanically continuously, this catalyzer needs a large amount of copper metals in the preparation process, which increases the expense of the catalyst; in addition, the consumption of this catalyst in furfural liquid-phase hydrogenation to produce furfuryl alcohol is high, and its consumption accounts for 2% of the furfural amount. ~8wt%

Method used

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  • Furfural hydrogenation catalyst, preparation method and applications thereof, and method for preparing furfuryl alcohol through liquid-phase hydrogenation of furfural

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Weigh Cu(NO 3 ) 2 ·3H 2 O 120g, 25wt% acidic silica sol (pH=2.5) 70g and ZrOCl 2 ·8H 2 O13.4g is stirred and dissolved in 500mL deionized water after mixing to obtain mixed solution A; the preparation concentration is 1mol / L Na 2 CO 3 Aqueous solution B; put 100mL of deionized water into the reaction kettle, under the conditions of constant stirring and a reaction temperature of 60°C, add the mixed solution A and the aqueous solution B in parallel, wherein the amount of the aqueous solution B is to make the reaction system The pH value was kept at 7, and after the addition was completed, continue to stir at 60°C for 0.5h to carry out the coprecipitation reaction. The above-mentioned coprecipitation product was filtered and washed with deionized water, then dried at 120°C for 12h, and then placed in a muffle furnace in Roast at 300°C for 4 hours, and finally grind the product obtained above to obtain a hydrogenation catalyst. The particle size of the hydrogenation ...

Embodiment 2

[0060] Weigh Cu(NO 3 ) 2 ·3H 2 O 120g, 25wt% acidic silica sol (pH=2.5) 60g and ZrOCl 2 ·8H 2 O11.3g is stirred and dissolved in 500mL deionized water after mixing to obtain mixed solution A; the preparation concentration is 1mol / L Na 2 CO 3 Aqueous solution B; put 100mL of deionized water into the reaction kettle, under the conditions of constant stirring and a reaction temperature of 60°C, add the mixed solution A and the aqueous solution B in parallel, wherein the amount of the aqueous solution B is to make the reaction system The pH value was kept at 7, and after the addition was completed, continue to stir at 60°C for 0.5h to carry out the coprecipitation reaction. The above-mentioned coprecipitation product was filtered and washed with deionized water, then dried at 120°C for 12h, and then placed in a muffle furnace in Roast at 300°C for 4 hours, and finally grind the product obtained above to obtain a hydrogenation catalyst. The particle size of the hydrogenation ...

Embodiment 3

[0065] Weigh Cu(NO 3 ) 2 ·3H 2 O 120g, 25wt% acidic silica sol (pH=2.5) 84g and ZrOCl 2 ·8H 2 O13.7g is stirred and dissolved in 500mL deionized water after mixing to obtain mixed solution A; the preparation concentration is 1mol / L Na 2 CO 3 Aqueous solution B; put 100mL of deionized water into the reaction kettle, under the conditions of constant stirring and a reaction temperature of 60°C, add the mixed solution A and the aqueous solution B in parallel, wherein the amount of the aqueous solution B is to make the reaction system The pH value was kept at 7, and after the addition was completed, continue to stir at 60°C for 0.5h to carry out the coprecipitation reaction. The above-mentioned coprecipitation product was filtered and washed with deionized water, then dried at 120°C for 12h, and then placed in a muffle furnace in Roast at 300°C for 4 hours, and finally grind the product obtained above to obtain a hydrogenation catalyst. The particle size of the hydrogenation ...

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Abstract

The invention relates to the field of catalysts, and discloses a hydrogenation catalyst, a preparation method and applications thereof, and a method for preparing furfuryl alcohol through liquid-phasehydrogenation of furfural. The hydrogenation catalyst comprises a carrier, an active metal component supported on the carrier, and an auxiliary agent supported on the carrier, wherein the active metal component is a copper component, the auxiliary agent is a zirconium component, and the carrier is silica. According to the present invention, with the application of the Cu-Si-Zr-containing hydrogenation catalyst in the reaction process for preparing furfuryl alcohol through liquid-phase hydrogenation of furfural, the hydrogenation catalyst has high catalytic activity, high catalytic selectivityand good stability; and the method for preparing the hydrogenation catalyst has characteristics of simpleness, low cost and environmental protection.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a hydrogenation catalyst, a preparation method and application thereof, and a method for preparing furfuryl alcohol by furfural liquid-phase hydrogenation. Background technique [0002] Furfuryl alcohol is an important chemical raw material. Furfuryl alcohol can be hydrolyzed to produce ethylphthalic acid, which is an intermediate of nutritional medicine calcium fructonate. Using furfuryl alcohol as raw material can produce furan resin, furfuryl alcohol-urea-formaldehyde resin and phenolic resin with better performance. Furfuryl alcohol is also a good solvent and rocket fuel for furan resins, varnishes, and pigments. In addition, furfuryl alcohol is also widely used in synthetic fibers, rubber, pesticides, and foundry industries. [0003] At present, the production process of furfuryl alcohol can be divided into liquid phase hydrogenation process and gas phase hydrogenation process. Ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/72C07D307/44
CPCB01J23/002B01J23/72B01J37/03B01J2523/00C07D307/44B01J2523/17B01J2523/41B01J2523/48
Inventor 冯海强高继东赵开径朱跃辉
Owner CHINA PETROLEUM & CHEM CORP
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