| AlCl3对纤维素高温液态水中水解反应的影响 |
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| 引用本文： | 马艳华,姬文琦,万雪亮.AlCl3对纤维素高温液态水中水解反应的影响[J].广州化工,2011,39(8):79-82. |
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| 作者姓名： | 马艳华 姬文琦 万雪亮 |
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| 作者单位： | 1. 潍坊科技学院化工系,山东寿光,262700
2. 上海大学化工系,上海,200444 |
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| 摘 要： | 以微晶纤维素为模型化合物,研究了AlCl3对其在高温液态水(HTLW)中的水解反应的影响.液相产品分析显示,AlCl3能够促进纤维素水解,降低水解反应温度,并在短时间内提高葡萄糖的收率.在T=260℃,P=5.2±0.2 MPa,t=1 min,体系中加入0.01%(质量百分浓度)的AlCl3可以将纤维素的转化率提高至...
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| 关 键 词： | 纤维素 HTLW AlCl3 水解反应 |
Effect of AlCl3 on Cellulose Hydrolysis in High Temperature Liquid Water |
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| MA Yan-hua,JI Wen-qi,WAN Xue-liang.Effect of AlCl3 on Cellulose Hydrolysis in High Temperature Liquid Water[J].GuangZhou Chemical Industry and Technology,2011,39(8):79-82. |
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| Authors: | MA Yan-hua JI Wen-qi WAN Xue-liang |
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| Affiliation: | 1 Department of Chemical Engineering,Weifang University of Science & Technology,Shandong Shouguang 262700;2 Department of Chemical Engineering,Shanghai University,Shanghai 200444,China) |
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| Abstract: | The effect of AlCl3 on hydrolysis of microcrystalline cellulose in high temperature liquid water(HTLW) was investigated.The HPLC results show that AlCl3 can accelerate the hydrolysis of cellulose and reduce the hydrolysis temperature.It can also promote the yield of glucose within short residence time.By adding 0.01% AlCl3,the conversion of cellulose was increased to 73.86% at 260 ℃,(5.2±0.2) MPa and 1 min while the maximum yield of glucose(47.73%) was approached.As an acid catalyst,AlCl3 can inhibit the isomerization and the retro-aldol condensation of glucose which can influence the product distribution of the hydrolysate.XRD and SEM analysis showed that AlCl3 can destroy the crystal structure of cellulose effectively. |
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| Keywords: | cellulose HTLW AlCl3 hydrolysis |
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