生物质热解过程的动力学行为研究对于热化学转化过程机理的掌握和热化学转化技术的开发具有重要意义.本文采用Miller模型对稻壳在低升温速率下的热解进行了动力学模拟,并利用热重分析实验结果对模拟过程的有效性进行了对比验证.模拟计算结果显示气体百分含量在650～780K范围内随温度升高迅速增加,炭含量在500～680K之间随温度升高迅速下降,焦油含量随着温度升高在650K左右达到最高值.同时升温速率的提高可以抑制炭的生成,增加气体和焦油最大产量,在100K/min的升温速率下,气体产量在780K达到最大56.3%,焦油产量在678K左右达到最大26.8%.
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