Kinetics of Furfural Production from Corn Cob in γ-Valerolactone Using Dilute Sulfuric Acid as Catalyst,ACS Sustainable Chemistry & Engineering

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Kinetics of Furfural Production from Corn Cob in γ-Valerolactone Using Dilute Sulfuric Acid as Catalyst
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2017-09-08 00:00:00 , DOI: 10.1021/acssuschemeng.7b00950
Xiaoyun Li ₁ , Qingling Liu ₁ , Chunhui Luo ₁ , Xiaochao Gu ₁ , Lefu Lu ₂ , Xuebin Lu _{1,

3}

Affiliation

Conversion of corn cob to furfural was investigated using γ-valerolactone as the solvent with a dilute sulfuric acid catalyst. A maximum furfural yield of 99.50% was obtained at 190 °C for 20 min with 0.10% sulfuric acid. A well-evaluated kinetic model was used for this reaction, and its activation energy was calculated. The model agreed closely with the experimental data and kinetics parameters, indicating that γ-valerolactone accelerated furfural formation and decreased the degradation rate as compared to water. Moreover, using γ-valerolactone as a solvent changed the energetics of the conversion reaction of hemicellulose to improve the formation of furfural. The response surface plots of the furfural concentration with respect to the temperature and dilute sulfuric acid density improved our understanding of the furfural production reaction from corn cob in γ-valerolactone solvents.

中文翻译：

稀硫酸催化γ-戊内酯中玉米芯糠醛生产动力学

以γ-戊内酯为溶剂，以稀硫酸为催化剂，研究了玉米芯向糠醛的转化。用0.10％的硫酸在190°C下进行20分钟的最大糠醛收率为99.50％。对该反应使用了良好评估的动力学模型，并计算了其活化能。该模型与实验数据和动力学参数非常吻合，表明与水相比，γ-戊内酯加速了糠醛的形成并降低了降解速率。此外，使用γ-戊内酯作为溶剂改变了半纤维素转化反应的能量，从而改善了糠醛的形成。

更新日期：2017-09-08

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