期刊
CARBOHYDRATE POLYMERS
卷 115, 期 -, 页码 439-443出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2014.09.011
关键词
Inulin biomass; 5-HMF; Levulinic acid; Molten salt hydrate medium; In situ NMR
资金
- Major State Basic Research Development Program of China (973 Program) [2012CB215305]
- National Natural Science Foundation of China [21106172]
- Natural Science Foundation for Youths of Shanxi [2012021009-2, 2013021008-7]
The dehydration of inulin biomass to the platform chemicals, 5-hydroxymethylfurfural (5-HMF) and levulinic acid (LA), in ZnCl2 molten salt hydrate medium was investigated. The influence of the Lewis acid catalyst, SnCl4, on the product distribution was examined. An in situ H-1 NMR technique was employed to follow the reaction at the molecular level. The experimental results revealed that only 5-HMF was obtained from degradation of inulin biomass in ZnCl2 molten salt hydrate medium, while the LA was gradually becoming the main product when the reaction temperature was increased in the presence of the Lewis acid catalyst SnCl4. In situ NMR spectroscopy could monitor the reaction and give valuable insight. (C) 2014 Elsevier Ltd. All rights reserved.
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