Kinetics of Furfural Production from Corn Cob in γ-Valerolactone Using Dilute Sulfuric Acid as Catalyst

被引：53

作者：

Li, Xiaoyun ^{[1
]}

Liu, Qingling ^{[1
]}

Luo, Chunhui ^{[1
]}

Gu, Xiaochao ^{[1
]}

Lu, Lefu ^{[3
]}

Lu, Xuebin ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Environm Sci & Engn, Tianjin Key Lab Indoor Air Environm Qual Control, 135 Yaguan Rd,Haihe Educ Pk, Tianjin 300350, Peoples R China

[2] Tibet Univ, Sch Sci, Dept Chem & Environm Sci, Tibet Da Dong Rd, Chengguan Dist 850000, Lhasa, Peoples R China

[3] Natl Ctr Qual Supervis & Testing Fertilizers Shan, Wuhan Rd, Lanshan Dist 276000, Linyi, Peoples R China

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2017年 / 5卷 / 10期

关键词：

Corn cob; Furfural; Dilute sulfuric acid; Kinetics; gamma-Valerolactone; RELATIVELY HIGH-TEMPERATURE; LIGNOCELLULOSIC BIOMASS; IONIC LIQUID; LEVULINIC ACID; SOLID ACIDS; D-XYLOSE; CONVERSION; SOLVENT; XYLAN; DEHYDRATION;

D O I：

10.1021/acssuschemeng.7b00950

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Conversion of corn cob to furfural was investigated using gamma-valerolactone as the solvent with a dilute sulfuric acid catalyst. A maximum furfural yield of 99.50% was obtained at 190 degrees 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 gamma-valerolactone accelerated furfural formation and decreased the degradation rate as compared to water. Moreover, using gamma-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 gamma-valerolactone solvents.

引用

页码：8587 / 8593

页数：7

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