Conversion of Eucalyptus Cellulose into 5-Hydroxymethylfurfural Using Lewis Acid Catalyst in Biphasic Solvent System

被引:11
|
作者
Wei, W. Q. [1 ]
Wu, S. B. [1 ]
机构
[1] South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
关键词
Eucalyptus cellulose; InCl3; 5-Hydroxymethylfurfural; Biphasic systems; LEVULINIC ACID; IONIC LIQUID; DILUTE-ACID; GLUCOSE; EFFICIENT; PRETREATMENT; HYDROLYSIS; FRUCTOSE; ETHANOL; BIOMASS;
D O I
10.1007/s12649-016-9676-0
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Conversion of eucalyptus cellulose into 5-hydroxymethylfurfural (5-HMF) by using Lewis acid catalyst in biphasic system was investigated in this study. The results show that the tetrahydrofuran/water biphasic system was more conducive to convert the eucalyptus cellulose into 5-HMF comparing to the single aqueous system. InCl3, a water-compatible Lewis acid, has the best catalytic effect. The highest yield of 5-HMF from eucalyptus cellulose is up to 45.05 mol%, which is a slight higher than that from microcrystalline cellulose. It can be ascribed to the lower crystallinity of isolated eucalyptus cellulose. The optimum conditions for catalytic conversion of eucalyptus cellulose into 5-HMF are at 200 degrees C for 2 h with 10 % InCl3 dosage. Additionally, the effect of recycling the whole biphasic system which contains InCl3, NaCl, H2O and THF indicated that the 5-HMF yield was gradually decreased as the cycle times increased, the possible reason could be due to the loss of partial InCl3 catalyst during the separation and distillation process.
引用
收藏
页码:1303 / 1311
页数:9
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