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Homogeneous Degradation of Cellulose in Its Aqueous Solution at Mild Temperature under Atmospheric Pressure
Le-zhi Tu,Li-feng Yan*
Author NameAffiliationE-mail
Le-zhi Tu School of Chemistry and Materials Science, iCHEM, University of Science and Technology of China, Hefei 230026, China  
Li-feng Yan* School of Chemistry and Materials Science, iCHEM, University of Science and Technology of China, Hefei 230026, China lfyan@ustc.edu.cn 
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
FundProject:This work was supported by the National Natural Science Foundation of China (No.51373162), and the Natural Science Foundation of Anhui Province (No.1408085MKL03)
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*
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DOI:10.1063/1674-0068/30/cjcp1607148
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