基于离子液体的纤维素低温分解特性研究
Low temperature decomposition property of cellulose in a ionic liquid system
本文以离子液体1-丁基-3-甲基咪唑氯([Bmim]Cl)为溶剂，对纤维素在不同时间，不同温度下反应后的产物进行LC-MS和GC-MS分析测试，以揭示纤维素在离子液体中的低温分解的部分反应过程，并通过添加氯化铁作为催化剂来获得平台化合物5-羟甲基糠醛，研究温度和反应时间对生成特性的影响。实验结果表明，在离子液体中，纤维素在很低的温度下就以发生分解，生成不同DP值的脱水糖，但有同于热解条件下的产物。三氯化铁对于纤维素生成5-羟甲基糠醛具有促进作用，对左旋葡聚糖的生成有抑制作用。
In this paper, microcrystalline cellulose PH101 was dissolved by the ionic liquid 1-butyl-3-methylimidazolium ([Bmim]Cl). The experiment was done in different time and different temperature. Then the products were collected and analyzed by LC-MS and GC-MS to reveal cellulose decomposition process in ionic liquids at low temperature. And by the addition of FeCl3 as a catalyst, the platform compound 5-hydroxymethyl furfural was obtained. The experimental results show that in ionic liquids. The decomposition of cellulose has occurred at very low temperatures. Anhydro-sugars are found in the water-soluble intermediates, but they are different from the products under pyrolysis conditions. FeCl3 can promote the cellulose to form 5-hydroxymethyl furfural, but inhibit the formation of levoglucosan.
龚勋、王阳、毛明、郭俊哲、冷尔唯
纤维素化学工业有机化学工业高分子化合物工业
热能与动力工程纤维素离子液体LC-MSGC-MS
thermal energy and power engineeringcelluloseionic liquidLC-MSGC-MS
龚勋,王阳,毛明,郭俊哲,冷尔唯.基于离子液体的纤维素低温分解特性研究[EB/OL].(2016-02-01)[2025-05-02].http://www.paper.edu.cn/releasepaper/content/201602-17.点此复制
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