| 双功能[Sn,Al]-Beta分子筛一步催化葡萄糖生成5-羟甲基糠醛 |
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| 引用本文： | 李良,丁姜宏,蒋金刚,朱治国,吴鹏.双功能[Sn,Al]-Beta分子筛一步催化葡萄糖生成5-羟甲基糠醛[J].催化学报,2015(6):820-828. |
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| 作者姓名： | 李良 丁姜宏 蒋金刚 朱治国 吴鹏 |
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| 作者单位： | 华东师范大学化学系上海市绿色化学与化工过程绿色化重点实验室,上海,200062 |
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| 基金项目： | 国家自然科学基金，教育部博士学科点专项科研基金，国家科技支撑计划，上海市重点学科建设项目资助 |
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| 摘 要： | 以部分脱铝的Beta分子筛为母体,采用同晶置换法将Sn植入骨架制备双功能Sn,Al]-Beta分子筛,并应用于葡萄糖一步催化生成5-羟甲基糠醛(5-HMF)反应中.样品中Sn与Al的含量通过酸洗的浓度和酸洗的时间以及SnCl4处理的时间来控制.由于骨架中有与Al相关为B酸位,和Sn相关的L酸位,Sn,Al]-Beta可作为一种双功能的固体酸催化剂.优化了Sn,Al]-Beta催化葡萄糖一步催化生成5-HMF的反应参数,在最优Sn/Al比条件下,葡萄糖转化率为60.0%,5-HMF选择性为62.1%.
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| 关 键 词： | 锡 铝-Beta 醛糖酮糖异构 双功能催化 羟甲基糠醛 生物质 同晶置换 |
One-pot synthesis of 5-hydroxymethylfurfural from glucose using bifunctional [Sn,Al]-Beta catalysts |
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| Liang Li,Jianghong Ding,Jin-Gang Jiang,Zhiguo Zhu,Peng Wu.One-pot synthesis of 5-hydroxymethylfurfural from glucose using bifunctional [Sn,Al]-Beta catalysts[J].Chinese Journal of Catalysis,2015(6):820-828. |
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| Authors: | Liang Li Jianghong Ding Jin-Gang Jiang Zhiguo Zhu Peng Wu |
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| Abstract: | The one-pot synthesis of 5-hydroxymethylfurfural (5-HMF) from glucose was investigated, using Sn,Al]-Beta catalysts prepared by a combination of partial dealumination and isomorphous substi-tution of Sn into the zeolite framework. The amount of Al in Sn,Al]-Beta was adjusted by changing the concentration and acid treatment time, and the Sn content was varied by changing the SnCl4 vapor treatment time. Sn,Al]-Beta contains framework Al-related Br?nsted acid sites and tetrahe-dral Sn-related Lewis acid sites, and is therefore a bifunctional solid acid catalyst. The reaction pa-rameters for the Sn,Al]-Beta-catalyzed one-pot conversion of glucose to 5-HMF were optimized. Sn,Al]-Beta with a suitable Sn/Al molar ratio gave a glucose conversion of 60.0%and 5-HMF selec-tivity of 62.1%. |
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| Keywords: | Sn Al]-Beta Aldose-Ketose Isomerization Bifunctional Catalysis Hydroxymethyl furfural Biomass Isomorphous substitution |
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