| 酸性沸石催化葡萄糖制备5-羟甲基糠醛研究 |
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| 引用本文： | 李秉正,黎演明,吴学众,黄日波.酸性沸石催化葡萄糖制备5-羟甲基糠醛研究[J].广西科学,2013,20(2):158-161,164. |
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| 作者姓名： | 李秉正 黎演明 吴学众 黄日波 |
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| 作者单位： | 广西科学院非粮生物质酶解国家重点实验室,国家非粮生物质能源工程技术研究中心,广西生物质炼制重点实验室,广西南宁 530007 |
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| 基金项目： | 广西自然科学基金项目，广西科技创新能力与条件建设计划项目，广西科学院基本科研业务费项目 |
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| 摘 要： | 以酸性沸石为催化剂,催化葡萄糖脱水制备5-羟甲基糠醛(5-HMF).沸石催化剂采用固载磷钨酸(PW)和脱铝两种方法制备,固载PW方法用3种类型沸石:HY、MCM-41和HMOR,脱铝方法用HY型沸石,共制得产物PW/MCM-41、PW/HMOR、PW/HY、HY-D0.2和HY-D1.0,考察沸石结构、反应温度、葡萄糖与水质量比、催化剂与葡萄糖质量比对制备5-HMF的影响.结果表明,沸石固载PW后5-HMF的产率均有所提高,其中,以Y型沸石(HY)固载PW后(PW/HY)作为催化剂时5-HMF产率最高,为27.9％；HY特殊的结构对提高5-HMF的产率具有重要的作用.另外,提高反应温度有利于加快5-HMF的生成；葡萄糖与水质量比为3.0∶100时5-HMF产率最高,反应2.5h时达到30.4％,说明适当的葡萄糖与水质量比有利于5-HMF的制备.
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| 关 键 词： | 5-羟甲基糠醛 葡萄糖 酸性沸石 磷钨酸 Y型沸石 |
| 收稿时间： | 2013/1/13 0:00:00 |
| 修稿时间： | 2013/2/5 0:00:00 |
Acidic Zeolite Catalysts for Preparation of 5-hydroxymethylfurfural from Glucose |
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| LI Bing-zheng,LI Yan-ming,WU Xue-zhong and HUANG Ri-bo.Acidic Zeolite Catalysts for Preparation of 5-hydroxymethylfurfural from Glucose[J].Guangxi Sciences,2013,20(2):158-161,164. |
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| Authors: | LI Bing-zheng LI Yan-ming WU Xue-zhong and HUANG Ri-bo |
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| Institution: | State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Science, Nanning, Guangxi, 530007, China,State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Science, Nanning, Guangxi, 530007, China,State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Science, Nanning, Guangxi, 530007, China and State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Science, Nanning, Guangxi, 530007, China |
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| Abstract: | Dehydration of glucose to 5-hydroxymethylfurfural (5-HMF) was carried out by using acidic zeolites as catalysts.A series of zeolite catalysts were prepared by phosphotungstic acid (PW) supporting and dealumination,respectively.Specifically,MCM-41,HMOR and HY were employed for PW supporting,and HY was used for dealumination.The obtained catalysts were named as PW/MCM-41,PW/HMOR,PW/HY,HY-D0.2 and HY-D1.0,respectively.Influence of catalyst structure,reaction temperature,mass ratio of glucose to water,as well as mass ratio of catalyst to glucose on 5-HMF yield were studied.The results showed that higher yields of 5-HMF were obtained for zeolites after PW supporting.Among these catalysts,PW supported HY zeolite (PW/HY) gave the highest 5-HMF yield of 27.9%.The particular structure of HY zeolite had significant positive influence on 5-HMF yield.In addition,increasing reaction temperature accelerated the 5-HMF generation.When mass ratio of glucose to water was 3.0:100,the highest 5-HMF yield of 30.4% was achieved at 2.5 h,which indicated that a proper mass ratio of glucose to water was favorable for 5-HMF preparation. |
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| Keywords: | 5-hydroxymethylfurfural glucose acidic zeolite phosphotungstic acid Y zeolite |
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