| 光谱学与光谱分析 |
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| TG-FTIR Study of the Thermal-Conversion Properties of Holo-Cellulose Derived from Woody Biomass |
| REN Xue-yong1, WANG Wen-liang1, BAI Tian-tian1, SI Hui2, CHANG Jian-min1*, TIAN Hong-xing1 |
1. College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China
2. College of Technology, Beijing Forestry University, Beijing 100083, China |
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Abstract Thermal-conversion properties of cellulose, hemi-cellulose and holo-cellulose derived from woody biomass were studied using TG-FTIR, and also compared to those of avicel cellulose and xylan. 3-D diffusion model was applied to calculate the kinetic parameters of thermal-conversion reaction of biomass materials, such as the activation energy, pre-exponential factors, etc, which showed good regression results. With the analysis of three-dimensional IR spectra of gas products, featured peaks of H2O, CO, CO2, CH4, and oxygenates were obviously observed where showing up with the maximum weight-loss rate in DTG curves. The possible forming routes of major gaseous products were analyzed and discussed. The order of releasing amounts for gaseous productions was approximately as CO2>H2O>CO≈CH4. Based on the comprehensive understanding and comparative analysis of the whole results, it is concluded that the thermal conversion process of holo-cellulose was the result of interaction between cellulose and hemi-cellulose under the dominant role of cellulose.
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Received: 2013-01-08
Accepted: 2013-03-01
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Corresponding Authors:
CHANG Jian-min
E-mail: cjianmin@bjfu.edu.cn
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