共 66 条
Dehydration of fructose and glucose to 5-hydroxymethylfurfural over Al-KCC-1 silica
被引:61
作者:
Shahangi, Fereshte
[1
]
Chermahini, Alireza Najafi
[1
]
Saraji, Mohammad
[1
]
机构:
[1] Isfahan Univ Technol, Dept Chem, Esfahan 8415483111, Iran
关键词:
Glucose;
Fructose;
HMF production;
Al-KCC-1;
Dehydration of carbohydrates;
ORDERED MESOPOROUS SILICA;
MUKAIYAMA ALDOL REACTION;
SOLID ACID;
EFFICIENT CONVERSION;
CATALYTIC CONVERSION;
2,5-FURANDICARBOXYLIC ACID;
SELECTIVE CONVERSION;
DIMETHYL-SULFOXIDE;
MCM-41;
SILICA;
IONIC LIQUIDS;
D O I:
10.1016/j.jechem.2017.06.004
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
In this research, the influence of several factors such as reaction time, catalyst weight, temperature and different solvents on dehydration reaction of fructose and glucose to 5-hydroxymethylfurfural (HMF) was surveyed. Nanosphere Al-KCC-1 silica with fibrous morphology was manufactured and used as proficient and recyclable catalyst for this reaction. SEM, TEM, BET, XRD, EDX, elemental mapping, ICP and FT-IR spectroscopy methods were applied for characterization of the Al-KCC-1 (molar ratio Si/Al = 5, 40) catalysts. 162 degrees C and 1 h are the best conditions for the fructose dehydration. Under this situation HMF yield and selectivity are 92.9% and 94.5% respectively and fructose conversion is 98.4%. Also 170 degrees C and 2 h are the best conditions for the glucose dehydration. In this situation HMF yield and selectivity are 39.0% and 39.9% respectively and glucose conversion is 97.8%. (C) 2017 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
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页码:769 / 780
页数:12
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