γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO<sub>2</sub>-SiO<sub>2</sub> catalyst

WANG Jie; ZHANG Yin; GUO Jianjian; ZHAO Lili; ZHAO Yongxiang

doi:10.11949/j.issn.0438-1157.20180027

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γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO₂-SiO₂ catalyst

更新时间：2025-12-10

- γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO₂-SiO₂ catalyst
- CIESC Journal Issue 8, Pages: 3452-3459(2018)
- 作者机构：
  
  山西大学化学化工学院, 精细化学品教育部工程研究中心,山西,太原,030006
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180027
  CLC： 643.36
- Online First：05 August 2018，
  
  Published：05 August 2018
- 稿件说明：
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WANG Jie, ZHANG Yin, GUO Jianjian, et al. γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO₂-SiO₂ catalyst[J]. CIESC Journal, 2018, (8): 3452-3459. DOI: 10.11949/j.issn.0438-1157.20180027.
DOI：

WANG Jie, ZHANG Yin, GUO Jianjian, et al. γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO₂-SiO₂ catalyst[J]. CIESC Journal, 2018, (8): 3452-3459. DOI: 10.11949/j.issn.0438-1157.20180027. DOI：

摘要

分别以ZrO2、SiO2及ZrO2-SiO2复合氧化物为载体，采用等体积浸渍法制备了Ni含量为10%（质量分数）的催化剂，考察了其催化乙酰丙酸液相加氢性能。采用N2-物理吸附、NH3-TPD、H2-TPR、XRD、TEM等表征手段对催化剂进行了表征。研究结果表明，在所制备的催化剂上，乙酰丙酸先经C=O加氢生成4-羟基戊酸，后者快速脱水酯化为γ-戊内酯。Ni/ZrO2-SiO2催化剂较Ni/ZrO2与Ni/SiO2催化剂具有高的金属分散度和丰富的表面酸性中心，表现出高的C=O加氢活性以及优异的乙酰丙酸加氢合成γ-戊内酯性能。在反应温度为200℃，氢气压力4 MPa的反应条件下，乙酰丙酸的转化率达到100%，γ-戊内酯的选择性大于99.9%。

Abstract

ZrO2、SiO2 and ZrO2-SiO2 oxide composite supported Ni catalysts with Ni content of 10%(mass) were prepared by incipient impregnation method and characterized by N2 physical adsorption

NH3-TPD

H2-TPR

XRD

TEM. The catalysts were evaluated for liquid phase hydrogenation of levulinic acid. The results showed that levulinic acid was first hydrogenated to 4-hydroxy valeric acid via C=O hydrogenation and γ-valerolactone was then produced by immediate esterification of 4-hydroxy valeric acid. Compared to Ni/ZrO2 and Ni/SiO2 catalysts

Ni/ZrO2-SiO2 catalyst exhibited highest dispersion of metallic Ni and most surface acid sites. As a result

the Ni/ZrO2-SiO2 catalyst demonstrated highest activity for C=O hydrogenation and superior performance for synthesis of γ-valerolactone via levulinic acid hydrogenation. 100% levulinic acid conversion and over 99.9% γ-valerolactone selectivity were achieved under reaction temperature of 200℃ and hydrogen pressure of 4 MPa.

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γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO2-SiO2 catalyst

DOI：10.11949/j.issn.0438-1157.20180027

摘要

Abstract

关键词

Keywords

references

γ-Valerolactone synthesis from levulinic acid hydrogenation over Ni/ZrO₂-SiO₂ catalyst