Evaluation of the pyrolytic and kinetic characteristics of Enteromorpha prolifera as a source of renewable bio-fuel from the Yellow Sea of China
Evaluation of the pyrolytic and kinetic characteristics of Enteromorpha prolifera as a source of renewable bio-fuel from the Yellow Sea of China
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DOI：
10.1016/j.cherd.2009.10.011
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发表时间：
2010-05-01
影响因子：
3.9
通讯作者：
Ye, Naihao
中科院分区：
文献类型：
--
作者：
Li, Demao;Chen, Limei;Ye, Naihao
在升温速率分别为10℃min(-1)、20℃min(-1)和50℃min(-1)的条件下，研究了黄海水葫芦的热解特性和动力学特性。结果表明，热解过程经历了脱水、初脱挥发和残渣分解三个阶段。升温速率的不同导致了增殖乳杆菌热解过程的显著差异。具体来说，升温速率的提高导致初始温度、峰值温度和最大失重值向更高的值移动。增殖乳杆菌的平均活化能为228.1 kJmol(-1)，指前因子为49.93~63.29，反应级数为2.2~3.7。此外，指前因子与活化能之间存在动力学补偿效应。当升温速率为20℃min(-1)时，活化能最小。(C)2009年化学工程师学会。爱思唯尔出版，版权所有。
The pyrolytic and kinetic characteristics of Enteromorpha prolifera from the Yellow Sea were evaluated at heating rates of 10, 20 and 50 degrees C min(-1), respectively. The results indicated that three stages appeared during pyrolysis; dehydration, primary devolatilization and residual decomposition. Differences in the heating rates resulted in considerable differences in the pyrolysis of E. prolifera. Specifically, the increase of heating rates resulted in shifting of the initial temperature, peak temperature and the maximum weight loss to a higher value. The average activation energy of E. prolifera was 228.1 kJ mol(-1), the pre-exponential factors ranged from 49.93 to 63.29 and the reaction orders ranged from 2.2 to 3.7. In addition, there were kinetic compensation effects between the pre-exponential factors and the activation energy. Finally, the minimum activation energy was obtained when a heating rate of 20 degrees C min(-1) was used. (C) 2009 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.