期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 5, 期 10, 页码 8587-8593出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.7b00950
关键词
Corn cob; Furfural; Dilute sulfuric acid; Kinetics; gamma-Valerolactone
资金
- Development Program of China, National High Technology Research [2014BAL02B04]
- Natural Science Foundation of Hebei Province [B2013202113]
- Natural Science Foundation of China [21406165]
- Seed Foundation of Tianjin University
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.
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