Yang Jianfei, Feng Zixing, Ni Liangmeng, Gao Qi, He Yuyu, Hou Yanmei, Liu Zhijia
International Centre for Bamboo and Rattan, Beijing 100102, China.
Key Laboratory of National Forestry and Grassland Administration/Beijing for Bamboo & Rattan Science and Technology, Beijing 100102, China.
ACS Omega. 2021 Mar 3;6(10):7008-7014. doi: 10.1021/acsomega.0c06300. eCollection 2021 Mar 16.
Thermal characteristics and kinetic parameters of ash from bamboo and masson pine blends with different mixing ratios were investigated using a thermogravimetric analyzer at different heating rates. The results showed that bamboo ash had lower fusion temperatures than the ash of masson pine. Mixing ratios and heating rates had a significant impact on the thermal characteristics and activation energy of ash samples. There was a synergistic interaction of chemical compositions in the bamboo and masson pine ashes. The mass loss of ash samples increased with the increase in the bamboo content of the blends. All ash samples had the maximum activation energy at the heating rate of 20 °C/min. The activation energy had a good linear correlation with mixing ratios at high conversion and heating rates. The optimum blend was suggested as 20% bamboo/80% masson pine due to its high activation energy. The results of this study are helpful to design a combustion system of bamboo and masson pine blends.
利用热重分析仪在不同加热速率下研究了不同混合比例的竹材与马尾松混合灰的热特性和动力学参数。结果表明，竹灰的熔融温度低于马尾松灰。混合比例和加热速率对灰样的热特性和活化能有显著影响。竹材和马尾松灰中的化学成分存在协同相互作用。灰样的质量损失随着混合材中竹材含量的增加而增加。所有灰样在20℃/min的加热速率下具有最大活化能。在高转化率和加热速率下，活化能与混合比例具有良好的线性相关性。由于其较高的活化能，建议最佳混合比例为20%竹材/80%马尾松。本研究结果有助于设计竹材与马尾松混合材的燃烧系统。
