Park Young-Hun, Kim Jinsoo, Kim Seung-Soo, Park Young-Kwon
College of Environment and Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi-do, Republic of Korea.
Bioresour Technol. 2009 Jan;100(1):400-5. doi: 10.1016/j.biortech.2008.06.040. Epub 2008 Aug 9.
In this work, pyrolysis characteristics were investigated using thermogravimetric analysis (TGA) at heating rates of 5-20 degrees C/min. Most of the materials were decomposed between 330 degrees C and 370 degrees C at each heating rate. The average activation energy was 236.2 kJ/mol when the pyrolytic conversion increased from 5% to 70%. The pyrolysis kinetics of oak trees was also investigated experimentally and mathematically. The experiments were carried out in a tubing reactor at a temperature range of 330-370 degrees C with a reaction time of 2-8 min. A lump model of combined series and parallel reactions for bio-oil and gas formation was proposed. The kinetic parameters were determined by nonlinear least-squares regression from the experimental data. It was found from the reaction kinetic constants that the predominant reaction pathway from the oak trees was to bio-oil formation rather than to gas formation at the investigated temperature range.
在这项工作中，使用热重分析（TGA）在5 - 20℃/分钟的加热速率下研究了热解特性。在每个加热速率下，大多数材料在330℃至370℃之间分解。当热解转化率从5%增加到70%时，平均活化能为236.2 kJ/mol。还通过实验和数学方法研究了橡树的热解动力学。实验在管式反应器中于330 - 370℃的温度范围内进行，反应时间为2 - 8分钟。提出了一个用于生物油和气体形成的串联和并联反应组合的集总模型。动力学参数通过对实验数据进行非线性最小二乘回归确定。从反应动力学常数发现，在所研究的温度范围内，橡树的主要反应途径是形成生物油而不是形成气体。
