数字农科院2.0

Investigating The Pyrolysis Kinetics Of Pinus Sylvestris Using Thermogravimetric Analysis

文献类型： 外文期刊

作者： Ni, Jiong;Huang, Ruyi;Huang, Ruyi;Zhou, Jiawei;Li, Yanru;Xu, Langui;Huang, Ruyi;Long, Yan

作者机构：

关键词： Pinus Sylvestris; Pyrolysis; Thermogravimetry; Activation Energy

期刊名称： BIORESOURCES

ISSN： 1930-2126

年卷期： 2020 年 15 卷 3 期

页码：

摘要： Thermogravimetric analyses of Pinus sylvestris from Xinxiang were performed to investigate its kinetic characteristics, which could provide information for industrial applications. Thermal degradation experiments were conducted at various heating rates of 10 degrees C/min, 20 degrees C/min, and 60 degrees C/min using a thermogravimetric analysis-differential scanning calorimetry (TG-DSC) analyzer with an inert environment. The peak pyrolysis temperatures of the three major components (hemicellulose, cellulose, and lignin) were predicted by the Kissinger-Kai method, and activation energy values (Ea) were calculated. The Ea of Pinus sylvestris was also estimated by two model-free methods. The decomposition reactions of hemicellulose, cellulose, and lignin at different temperatures were the main reason for fluctuations in Ea. The time for heat transfer was less sufficient at a high heating rate compared with that at a low heating rate, which caused the temperature gradients in the samples. Therefore, the temperature of maximum exothermic peaks was higher than the maximum pyrolysis temperature. This kinetic study could be useful for providing guidance for optimizing the biomass pyrolysis process.

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