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Method for preparing tetrahydrofurfuryl alcohol and pentanediol through furyl alcohol hydrogenation

A technology of tetrahydrofurfuryl alcohol and pentanediol is applied in the field of biomass-based high-grade chemical synthesis, and achieves the effects of simple production process, feasible technical solution and low operation difficulty

Pending Publication Date: 2021-04-16
GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the catalytic reaction system for the co-production of tetrahydrofurfuryl alcohol and pentanediol using furfuryl alcohol as raw material, but it still has important research significance for a highly efficient, easy-to-control, and low-cost catalytic reaction system

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The solvent isopropanol is 15mL, the substrate furfuryl alcohol concentration is 0.1mol / L, the hydrogen pressure is 4MPa, the stirring rate is 500rpm, the carbon-based catalyst is Pt / C with a Pt loading of 10%, and the mass ratio of Pt / C to furfuryl alcohol is 1:1 , the mass ratio of calcium oxide to furfuryl alcohol is 0.8:1, the reaction temperature is 180°C, and the reaction time is 6h. After the reaction, the product was filtered through a 0.22 micron organic filter membrane, and the conversion rate of the raw material and the yield of the product were detected by Agilent 7890A. The experimental results showed that under the above reaction conditions, the conversion rate of furfuryl alcohol was 100%, and the selectivities of tetrahydrofurfuryl alcohol, 1,2-pentanediol and 1,5-pentanediol were 36.7%, 36.1% and 21.5%, respectively.

Embodiment 2

[0024] The solvent isopropanol 15mL, the concentration of substrate furfuryl alcohol is 1mol / L, the hydrogen pressure is 4MPa, the stirring rate is 1000rpm, the carbon-based catalyst is Pt / C with a Pt loading of 10%, and the mass ratio of Pt / C to furfuryl alcohol is 1:1. The mass ratio of calcium oxide to furfuryl alcohol is 1.2:1, the reaction temperature is 180°C, and the reaction time is 10h. After the reaction, the product was filtered through a 0.22 micron organic filter membrane, and the conversion rate of the raw material and the yield of the product were detected by Agilent 7890A. The experimental results showed that under the above reaction conditions, the conversion rate of furfuryl alcohol was 100%, and the selectivities of tetrahydrofurfuryl alcohol, 1,2-pentanediol and 1,5-pentanediol were 58.9%, 7.6% and 5.4%, respectively.

Embodiment 3

[0026] The solvent isopropanol is 20mL, the substrate furfuryl alcohol concentration is 0.3mol / L, the hydrogen pressure is 2MPa, the stirring rate is 600rpm, the carbon-based catalyst is Pd / C with a Pd loading of 3%, and the mass ratio of Pd / C to furfuryl alcohol is 0.1:1 , the mass ratio of calcium oxide to furfuryl alcohol is 0.8:1, the reaction temperature is 180°C, and the reaction time is 6h. After the reaction, the product was filtered through a 0.22 micron organic filter membrane, and the conversion rate of the raw material and the yield of the product were detected by Agilent 7890A. The experimental results showed that under the above reaction conditions, the conversion rate of furfuryl alcohol was 85.0%, and the selectivities of tetrahydrofurfuryl alcohol, 1,2-pentanediol and 1,5-pentanediol were 32.1%, 35.3% and 16.0%, respectively.

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Abstract

The invention discloses a method for preparing tetrahydrofurfuryl alcohol and pentanediol through furyl alcohol hydrogenation. According to the method, furfuryl alcohol is taken as a substrate, isopropanol is taken as a solvent, a metal supported carbon-based catalyst and calcium oxide are taken as a combined catalyst, hydrogenation reaction is carried out at 150-180 DEG C in a hydrogen environment of 1-4MPa under a stirring condition, and tetrahydrofurfuryl alcohol, 1, 2-pentanediol and 1, 5-pentanediol are prepared. The method disclosed by the invention realizes high-value conversion of furfuryl alcohol, is simple and convenient in production process and low in operation difficulty, and has a certain popularization and application prospect.

Description

technical field [0001] The invention belongs to the technical field of biomass-based high-grade chemical synthesis, and in particular relates to a method for preparing tetrahydrofurfuryl alcohol and pentanediol by hydrogenating furfuryl alcohol. Background technique [0002] With the extensive use of fossil resources, the problems of energy scarcity and environmental pollution have become increasingly prominent, and seeking an efficient and environmentally friendly alternative resource has become a current research hotspot. Biomass has remarkable characteristics such as renewable, large reserves and wide distribution, and it is the only renewable resource that can be used to synthesize chemicals, so it has attracted extensive attention of researchers. As an important platform compound obtained by catalytic conversion of biomass, furfuryl alcohol has been widely used in pharmaceutical, chemical and other industries. Based on the active carbon-carbon double bond and hydroxyl ...

Claims

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Application Information

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IPC IPC(8): B01J23/02B01J23/42B01J23/44B01J23/58B01J35/00C07C29/17C07C31/20C07D307/12
CPCY02P20/584
Inventor 袁浩然张军李丹妮
Owner GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
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