摘要
文中使用热重分析法研究生物质成型燃料的热解性质。结果显示,生物质成型燃料的热解过程主要分为三个阶段:失水干燥、快速热解与缓慢失重。当升温速度从5K/min逐渐升高至30K/min时,最大热解速率由-3.72%/min逐步上升至-19.41%/min,这说明提高升温速度对热解有利,热解曲线向高温区移动。采用Coats-Redfern模型对成型燃料的热解过程进行拟合,发现一级动力学模型可描述成型燃料的热解过程,且活化能在58k J/mol^69k J/mol之间,表明生物质成型燃料的热解过程很容易进行。
The pyrolysis characteristics of biomass pellet fuel （BPF） has been investigated by thermogravimetric analysis. The results show that the pyrolysis of BPF was divided into three periods： dehydration, rapid pyrolysis and slow weight loss. When the heating rate increases from 5 K/min to 30 K/min, the max pyrolysis rate increases from -3.72%/min to -19.41%/min, and the pyrolysis curve moved to the higher temperature region. The matching computation was carried out to analyze pyrolysis of BPF with the Coats-Redfern method, and the main pyrolysis process can be described by the frst-order kinetic model with the activation energy of 58kJ/mol-69kJ/mol.
作者
罗威威
尤俊
LUO Wei-Wei;YOU Jun(Fujian Boiler and Pressure Vessel Inspection Institute, Fuzhou 350008, Fujian, Chin)
出处
《质量技术监督研究》
2018年第2期36-39,共4页
Quality and Technical Supervision Research
关键词
生物质成型燃料
热重分析
热解性质
反应动力学
Biomass pellet fuel （BPF）
Thermogravimetric analysis
Pyrolysis characteristics
Kinetics
