| 基于离子液体再生的纤维素热解特性 |
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| 引用本文： | 王鹏,龚勋,张彪,冷尔唯,陈振国,徐明厚. 基于离子液体再生的纤维素热解特性[J]. 化工学报, 2014, 65(12): 4793-4798. DOI: 10.3969/j.issn.0438-1157.2014.12.020 |
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| 作者姓名： | 王鹏 龚勋 张彪 冷尔唯 陈振国 徐明厚 |
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| 作者单位： | 1. 华中科技大学煤燃烧国家重点实验室, 湖北 武汉 430074;2. 湖北省烟草研究所, 湖北 武汉 430030 |
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| 基金项目： | 国家自然科学基金项目(51306062)。@@@@supported by the National Natural Science Foundation of China |
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| 摘 要： | 利用离子液体1-丁基-3-甲基咪唑氯([Bmim]Cl)溶解PH-101微晶纤维素,通过不同的再生方法获得两种再生的纤维素,并利用XRD确定其结晶度,场发射扫描电镜(SEM)获得其形貌特征,热重(TG)分析表征其热稳定性.采用Py-GC/MS 对不同结晶度纤维素进行快速热解,并对热解挥发分进行在线分析,观察结晶度对纤维素热解特性的影响.研究表明左旋葡聚糖产率随结晶度降低而减少,而小分子产物随结晶度降低而增多.
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| 关 键 词： | 纤维素 结晶 结晶度 离子液体 热解 热解特性 |
| 收稿时间： | 2014-06-10 |
| 修稿时间： | 2014-09-02 |
Pyrolysis characteristics of cellulose from ionic liquid regeneration |
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| WANG Peng,GONG Xun,ZHANG Biao,LENG Erwei,CHEN Zhenguo,XU Minghou. Pyrolysis characteristics of cellulose from ionic liquid regeneration[J]. Journal of Chemical Industry and Engineering(China), 2014, 65(12): 4793-4798. DOI: 10.3969/j.issn.0438-1157.2014.12.020 |
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| Authors: | WANG Peng GONG Xun ZHANG Biao LENG Erwei CHEN Zhenguo XU Minghou |
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| Affiliation: | 1. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China;2. Tobacco Research Institute of Hubei Province, Wuhan 430030, Hubei, China |
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| Abstract: | Microcrystalline cellulose PH-101 was dissolved by the ionic liquid 1-butyl-3-methylimidazolium chloride ([Bmim]Cl). Two kinds of regenerated cellulose with lower crystallinity (C1 and C2) were obtained by different regeneration methods. XRD was used to determine crystallinity of materials, thermogravimetric (TG) was used to determine thermal stability, and scanning electron microscopy (SEM) was used to observe the difference of morphology. The effect of crystallinity on pyrolysis characteristics of cellulose was obtained by analyzing the pyrolysis products from the cellulose with different degrees of crystallinity. Py-GC/MS results showed that the cellulose with lower degree of crystallinity had lower levoglucosan yield but higher yield of small molecule components. |
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| Keywords: | cellulose crystallization crystallinity ionic liquids pyrolysis pyrolysis characteristics |
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