Perfect recycle and mechanistic role of hydrogen sulfate ionic liquids as additive in ethanol for efficient conversion of carbohydrates into 5-ethoxymethylfurfural
文献类型: 外文期刊
第一作者: Guo, Haixin
作者: Guo, Haixin;Aida, Taku M.;Smith, Richard Lee, Jr.;Qi, Xinhua;Duereh, Alif;Hiraga, Yuya;Smith, Richard Lee, Jr.
作者机构:
关键词: Biomass inulin;Biofuel;Reactivation;Reuse of homogeneous catalyst;Reaction mechanism
期刊名称:CHEMICAL ENGINEERING JOURNAL ( 影响因子:13.273; 五年影响因子:11.529 )
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收录情况: SCI
摘要: Hydrogen sulfate ionic liquid as co-solvent and homogeneous catalyst can promote efficient conversion of carbohydrates into 5-ethoxymethylfurfural (5-EMF). Yields of 5-EMF were as high as 77% and 43% from inulin and sucrose, respectively, in the mixed solvent system of ethanol-[BMIM][HSO(4)1 for 30 min reaction time at 130 degrees C. The ionic liquid could be perfectly recycled with a single pretreatment of activated carbon for 24 h. Based on the characterization with H-1 NMR and ATR-FTIR, the mechanism for the hydrogen sulfate ionic liquid promoted conversion of inulin into 5-EMF through stabilization of 5-hydroxymethylfurfural (5-HMF) with the C-2 hydrogen of the ionic liquid. Hydrogen sulfate ionic liquid as additive allows efficient conversion of carbohydrates into biofuels and as homogeneous catalysts, they can be easily reactivated and recycled with activated carbon treatment. (C) 2017 Elsevier B.V. All rights reserved.
分类号: TQ
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