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调查MARS对生物质热解动力学的预测能力:对一个棕油空果束的案例研究

Junaid Ahmad^1,2, Chawalit Ngamcharussrivichai^1,2, Imtiaz Ali^3,4

¹Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand.

|February 10, 2025

概括

棕油空果束 (PEFB) 生物质的热解提供了一个可持续的能源解决方案. 动力分析和高级建模证实了其可用于可再生能源发电的可行性.

科学领域:

生物质能源生物质能源
化学工程是化学工程的重要组成部分.
可再生能源技术可再生能源技术

背景情况:

棕油空果束 (PEFB) 是一个丰富的纤维素生物质资源.
热解提供了一种热化学途径,用于将生物质转化为有价值的能源产品.
了解热解动力学对于优化反应器设计和过程效率至关重要.

研究的目的:

为了研究PEFB生物质的热解动力学.
为了确定PEFB热解的激活能量和热力学参数.
使用多变量自适应回归线 (MARS) 开发PEFB热解的预测模型.

主要方法:

使用弗里德曼,基辛格-阿卡希拉-苏诺斯 (KAS),Ozawa-Flynn-Wall (OFW) 和Vyazovkin (VZ) 方法进行动力分析.
导出热力学参数:激活 (ΔH‡), (ΔS‡) 和吉布斯自由能量 (ΔG‡).
使用MARS对激活能量 (E) 的建模,将温度,加热速率和转换作为变量.

主要成果:

在不同的动力分析方法中观察到一致的趋势.
平均激活能量 (E) 在165.23至187.40kJ/mol之间.
在预测激活能量方面,MARS模型实现了高精度 (R2 = 0.987).

结论:

PEFB热解是一种可行的可持续能源途径.
火星有效地模拟了复杂的生物质热解动力学.
准确的动力数据支持优化可再生能源生产的PEFB.

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