کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4763179 | 1422964 | 2017 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Efficient conversion of fructose into 5-ethoxymethylfurfural with hydrogen sulfate ionic liquids as co-solvent and catalyst
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Hydrogen sulfate ionic liquid as co-solvent and as homogeneous catalyst in ethanol solvent allows efficient conversion of fructose into 5-ethoxymethylfurfural (5-EMF) directly at mild conditions. Ionic liquids [A][B] ([A]+ = 1-methylimidazolium, [C1im]+; 1-ethyl-3-methylimidazolium, [C2mim]+; or 1-butyl-3-methylimidazolium, [C4mim]+, [B]â = hydrogen sulfate, [HSO4]â; acetate, [AC]â; diethylphosphate, [DEP]â); dimethylphosphate, [DMP]â) or chloride, [Cl]â were studied. In the [C4mim][HSO4]-ethanol system, 83% 5-EMF yields were obtained from fructose at 130 °C in 20 min reaction time that can be attributed to the anion acidity and to a stabilizing hydrogen bond that forms between the ionic liquid and 5-HMF. The ionic liquid was demonstrated to be reusable for five times with minimal loss in catalytic activity (ca. 3% loss in 5-EMF yield). Hydrogen sulfate ionic liquids as co-solvent and catalyst in ethanol allow efficient conversion of biomass-related mixtures that contain fructose or a 5-HMF intermediate into biofuels.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 314, 15 April 2017, Pages 508-514
Journal: Chemical Engineering Journal - Volume 314, 15 April 2017, Pages 508-514
نویسندگان
Haixin Guo, Xinhua Qi, Yuya Hiraga, Taku M. Aida, Richard Lee Jr,