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温和温度与常压下纤维素在其均相水溶液中的降解
涂乐志,闫立峰*
作者单位E-mail
涂乐志 中国科学技术大学化学与材料科学学院, 能源材料与化学协同创新中心, 合肥 230026  
闫立峰* 中国科学技术大学化学与材料科学学院, 能源材料与化学协同创新中心, 合肥 230026 lfyan@ustc.edu.cn 
摘要:
关键词:  
DOI:10.1063/1674-0068/30/cjcp1607148
分类号:
基金项目:This work was supported by the National Natural Science Foundation of China (No.51373162), and the Natural Science Foundation of Anhui Province (No.1408085MKL03)
Homogeneous Degradation of Cellulose in Its Aqueous Solution at Mild Temperature under Atmospheric Pressure
Le-zhi Tu,Li-feng Yan*
Abstract:
Degradation of cellulose to chemicals is one of major routes for biomass conversion. Here, a new simple and two-step method has been developed to convert cellulose in its homogeneously alkaline solution to organic acids under atmospheric pressure at mild temperature. At first, cellulose was degraded to small molecular intermediates at 110 ℃ for 3 h under atmospheric pressure, and then it was oxidized with H2O2 at 50 ℃ for 4 h. Under the optimal condition, 73.5% conversion of cellulose could be achieved, and the yield of organic acids was 32.8% (formic acid), 11.6% (lactic acid), and 2.3% (oxalic acid), respectively. It is noteworthy that the new strategy reduces energy consumption in the process of reaction, unlike the hydrothermal reaction under high temperature and high pressure.
Key words:  Cellulose  Degradation  Homogeneous  Organic acids