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纤维素快速降解并催化转化为5-羟甲基糠醛
赖斌,赵毅,闫立峰*
作者单位E-mail
赖斌 中国科学技术大学化学物理系合肥微尺度物质科学国家实验室(筹)合肥230026  
赵毅 中国科学技术大学化学物理系合肥微尺度物质科学国家实验室(筹)合肥230026  
闫立峰* 中国科学技术大学化学物理系合肥微尺度物质科学国家实验室(筹)合肥230026 lfyan@ustc.edu.cn 
摘要:
采用类似室温离子液体的低温氯化锌熔盐为反应介质,在稀酸的催化下纤维素可快速降解为葡萄糖,而后通过补充二甲亚砜与不同的氯化物金属盐催化剂,可以实现葡萄糖转化为5-羟甲基糠醛, 并研究了其降解过程中的分子机制,探讨了不同金属催化剂的影响,最终得到的HMF的最大产率为53%.
关键词:  纤维素,快速水解,5-羟甲基糠醛
DOI:10.1063/1674-0068/26/03/355-360
分类号:
基金项目:
Preparation of 5-Hydroxymethylfurfural from Cellulose via Fast Depolymerization and Consecutively Catalytic Conversion
Bin Lai,Yi Zhao,Li-feng Yan*
Abstract:
The conversion of cellulose to 5-hydroxymethylfurfural (HMF) has been investigated by a one-pot consecutive reaction. At first, cellulose was depolymerised into glucose via a fast degradation of cellulose in molten ZnCl2 in the presence of hydrochloric acid, and the yield of glucose is 75% in 120 s at reaction temperature of 95 oC. Then, DMSO was used as solvent and different kinds of metal chloride were added as catalysts, and the conversion was carried out continuously at 110-130 oC for 0.5-4 h. The yield of HMF was 53% when CrCl3 were used as catalyst. The one-pot two steps conversion was carried out at atmosphere pressure, and it is a simple route to prepare HMF from lignocellulosic feedstock on a large scale.
Key words:  Cellulose, Rapid hydrolysis, 5-Hydroxymethylfurfural