| Non-isothermal Kinetics of Pyrolysis of Three Kinds of Fresh Biomass |
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| 引用本文： | MIN Fan-fei ZHANG Ming-xu CHEN Qing-ru. Non-isothermal Kinetics of Pyrolysis of Three Kinds of Fresh Biomass[J]. 中国矿业大学学报(英文版), 2007, 17(1): 105-111. DOI: 10.1016/S1006-1266(07)60023-6 |
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| 作者姓名： | MIN Fan-fei ZHANG Ming-xu CHEN Qing-ru |
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| 作者单位： | [1]Department of Matertal Sctence and Engmeermg, Anhut Umverstty of Sctence and Technology, Huaman, Anhut 232001, China [2]Key Laboratory of Modern Mining Engineering of Anhui Province, Huainan, Anhui 232001, China [3]School of Chemical and Engineering Technology, China University of Mining ＆ Technology, Xuzhou, Jiangsu 221008, China |
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| 摘 要： | The pyrolysis kinetics of three different kinds of fresh biomass （grass： triple A, wheat straw, corn straw） in nitrogen flow were studied by thermogravimetric analysis at five different heating rates. The kinetic parameters of the pyrolysis process were calculated using the method of Ozawa-Flynn-Wall and the mechanism of reactions were investigated using the method of Popescu. It was found that the values of activation energy varied in different temperature ranges. The pyrolysis processes are well described by the models of Zhuravlev （Zh） and valid for diffusion-controlled between 200 ℃ and 280 ℃, by Ginstling-Brounshtein （G-B）, valid for diffusion-control between 280 ℃ and 310 ℃, for first-order chemical reaction between 310℃ and 350 ℃. by Zhuravlev （Zh） valid for diffusion-control between 350 ℃ and 430 ℃ and by the one-way transport model when temperatures are over 430 ℃.
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| 关 键 词： | 木材加工 热解工艺 木材化学 温度变化 |
| 收稿时间： | 2006-09-22 |
| 修稿时间： | 2006-11-28 |
Non-isothermal Kinetics of Pyrolysis of Three Kinds of Fresh Biomass |
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| MIN Fan-fei,ZHANG Ming-xu,CHEN Qing-ru. Non-isothermal Kinetics of Pyrolysis of Three Kinds of Fresh Biomass[J]. Journal of China University of Mining and Technology, 2007, 17(1): 105-111. DOI: 10.1016/S1006-1266(07)60023-6 |
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| Authors: | MIN Fan-fei ZHANG Ming-xu CHEN Qing-ru |
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| Affiliation: | 1. Department of Material Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China;2. Key Laboratory of Modern Mining Engineering of Anhui Province, Huainan, Anhui 232001, China;3. School of Chemical and Engineering Technology, China University of Mining & Technology, Xuzhou, Jiangsu 221008, China |
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| Abstract: | The pyrolysis kinetics of three different kinds of fresh biomass (grass: triple A, wheat straw, com straw) in nitrogen flow were studied by thermogravimetric analysis at five different heating rates. The kinetic parameters of the pyrolysis process were calculated using the method of Ozawa-Flynn-Wall and the mechanism of reactions were investigated using the method of Popescu. It was found that the values of activation energy varied in different temperature ranges. The pyrolysis processes are well described by the models of Zhuravlev (Zh) and valid for diffusion-controlled between 200℃ and 280℃, by Ginstling-Brounshtein (G-B), valid for diffusion-control between 280℃ and 310℃, for first-order chemical reaction between 310℃ and 350℃, by Zhuravlev (Zh) valid for diffusion-control between 350℃ and 430℃ and by the one-way transport model when temperatures are over 430℃. |
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| Keywords: | non-isothermal kinetics fresh biomass pyrolysis thermogravimetric analysis |
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