| 微波辅助的金属氯化物Lewis酸催化纤维素水解 |
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| 引用本文： | 朱萍,汤颖,薛青松,李剑锋,路勇.微波辅助的金属氯化物Lewis酸催化纤维素水解[J].燃料化学学报,2009,37(2):244-247. |
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| 作者姓名： | 朱萍 汤颖 薛青松 李剑锋 路勇 |
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| 作者单位： | Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，教育部新世纪优秀人才支持计划，上海市曙光计划，上海市重点学科建设项目 |
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| 摘 要： | 研究了微波辐射下四种金属氯化物Lewis酸的催化纤维素酸水解反应性能，发现CuCl2的催化性能最好。反应温度、反应时间、微波功率、催化剂用量和酸种类对纤维素水解转化率、葡萄糖和5-羟甲基糠醛(5-HMF)的选择性均有明显影响。与传统热反应相比，微波辐射明显加快纤维素酸水解速率，提高葡萄糖的选择性。0.5g纤维素和15g水，在微波功率800W，温度到达225℃时立即停止反应的条件下，当CuCl2用量为0.05mmol时，纤维素转化率和葡萄糖选择性达72.6%和62.3%；当CuCl2用量为0.15mmol时，5-HMF的选择性最高为13.2%；当CuCl2用量为0.30mmol时，纤维素的转化率高达90.6%，但葡萄糖选择性只有6.7%。
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| 关 键 词： | 纤维素 微波 水解 葡萄糖 5-HMF |
| 收稿时间： | 2008-06-21 |
| 修稿时间： | 2008-09-30 |
Microwave-assisted hydrolysis of cellulose using metal chloride as Lewis acid catalysts |
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| ZHU Ping,TANG Ying,XUE Qing-song,LI Jian-feng,LU Yong.Microwave-assisted hydrolysis of cellulose using metal chloride as Lewis acid catalysts[J].Journal of Fuel Chemistry and Technology,2009,37(2):244-247. |
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| Authors: | ZHU Ping TANG Ying XUE Qing-song LI Jian-feng LU Yong |
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| Institution: | Shanghai Key Laboratory of Green Chemistry and Chemical Processes;Department of Chemistry;East China Normal University;Shanghai 200062;China |
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| Abstract: | The hydrolysis of cellulose under microwave irradiation using various metal chlorides as Lewis-acid catalysts was investigated.It was found that the cellulose conversion and product selectivity is strongly dependent on the reaction parameters like reaction temperature,time,microwave power,chloride type and amount used.In comparison with the conventional heating method,the microwave irradiation can accelerate the cellulose hydrolysis and improve the selectivity to glucose with good conversion.Among the metal... |
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| Keywords: | 5-HMF |
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