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首页> 外文期刊>RSC Advances >A novel method for kinetics analysis of pyrolysis of hemicellulose, cellulose, and lignin in TGA and macro-TGA
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A novel method for kinetics analysis of pyrolysis of hemicellulose, cellulose, and lignin in TGA and macro-TGA

机译：TGA和macro-TGA中半纤维素，纤维素和木质素热解动力学的新方法

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摘要

The pyrolysis of three biomass components (hemicellulose, cellulose and lignin) was investigated in both a thermogravimetric analyzer (TGA) and self-designed macro-TGA. Slow and fast pyrolysis experiments were carried out in the macro-TGA. A novel peak analysis-least square method (PA-LSM) was developed to analyze the kinetics. The results showed that a complex pyrolysis reaction could be described by a series of parallel reactions, and each reaction could be described by a Gaussian peak. The kinetic parameters could be calculated via the least square method, and the Gaussian peak could be simulated very well. The slow pyrolysis in the TGA and macro-TGA is different, because of the heat transfer process. The pyrolysis and fast pyrolysis in macro-TGA also had considerable differences.
机译：在热重分析仪（TGA）和自行设计的macro-TGA中研究了三种生物质成分（半纤维素，纤维素和木质素）的热解。在macro-TGA中进行了缓慢和快速的热解实验。开发了一种新颖的峰分析-最小二乘方法（PA-LSM）来分析动力学。结果表明，复杂的热解反应可以通过一系列平行反应描述，每个反应都可以通过高斯峰描述。可以通过最小二乘法计算动力学参数，并且可以很好地模拟高斯峰。由于传热过程，在TGA和macro-TGA中缓慢的热解是不同的。宏观TGA中的热解和快速热解也有相当大的差异。

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