Production of 5-hydroxymethylfurfural in ionic liquids under high fructose concentration conditions

被引：85

作者：

Li, Changzhi ^{[1
]}

Zhao, Zongbao K. ^{[1
,2
]}

Wang, Aiqin ^{[1
]}

Zheng, Mingyuan ^{[1
]}

Zhang, Tao ^{[1
]}

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

[2] Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

来源：

CARBOHYDRATE RESEARCH | 2010年 / 345卷 / 13期

基金：

国家高技术研究发展计划(863计划);

关键词：

5-Hydroxymethylfurfural; Ionic liquid; Fructose; Dehydration; Bio-based product; EXCHANGE-RESIN; DEHYDRATION; BIOMASS; FUELS; TRANSFORMATION; SULFOXIDE; MECHANISM; CHLORIDE; SOLVENT; SYSTEM;

D O I：

10.1016/j.carres.2010.07.003

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Acid-promoted, selective production of 5-hydroxymethylfurfural (HMF) under high fructose concentration conditions was achieved in ionic liquids (ILs) at 80 degrees C. A HMF yield up to 97% was obtained in 8 min using 1-butyl-3-methylimidazolium chloride ([C(4)mim]Cl) catalyzed with 9 mol % hydrochloric acid. More significantly, an HMF yield of 51% was observed when fructose was loaded at a high concentration of 67 wt % in [C(4)mim]Cl. Water content below 15.4% in the system had little effect on HMF yield, whereas a higher water content was detrimental to both reaction rate and HMF yield. In situ NMR analysis suggested that the transformation of fructose to HMF was a highly selective reaction that proceeded through the cyclic fructofuranosyl intermediate pathway. This work increased our capacity to produce HMF, and should be valuable to facilitate cost-efficient conversion of biomass into biofuels and bio-based products. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1846 / 1850

页数：5

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