Thermal analysis of the combustion of charcoals from Eucalyptus dunnii obtained at different pyrolysis temperatures
Thermal analysis of the combustion of charcoals from Eucalyptus dunnii obtained at different pyrolysis temperatures
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DOI：
10.1007/s10973-010-0746-4
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发表时间：
2010-03
影响因子：
4.4
通讯作者：
Andrés Cuña Suárez;N. Tancredi;P. C. C. Pinheiro-P.-C.-C.-Pinheiro-152418140;M. Yoshida
中科院分区：
文献类型：
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作者：
Andrés Cuña Suárez;N. Tancredi;P. C. C. Pinheiro-P.-C.-C.-Pinheiro-152418140;M. Yoshida
采用差示扫描量热法（DSC）和热重/差热分析法（TG/DTA）研究了不同热解温度下的桉木热解炭的热交换能和热解过程中的转化。炭的DSC曲线在~610和~750 K有两个放热峰。在较高的热解终温下得到的炭的第一个峰被压扁，在873和923 K下得到的炭的第一个峰消失。随着温度的升高，第二峰强度增加，位置发生变化。炭的特性表明，随着热解温度的升高，热值上升。
DSC and TG/DTA were used to study charcoals obtained from eucalyptus wood at different pyrolysis temperatures, as well as the exchanged energy, and the transformations involved during the pyrolysis process. Charcoals DSC curves showed two exothermic peaks, at ~610 and ~750 K. The first peak was squashed for those charcoals obtained at higher final pyrolysis temperatures, and it disappeared in the charcoals obtained at 873 and 923 K. The second peak intensity increased and its location changed at the higher temperatures. Charcoal characterization showed a rise of heat values with the pyrolysis temperature.