School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
Bioresour Technol. 2018 Oct;266:389-397. doi: 10.1016/j.biortech.2018.06.106. Epub 2018 Jul 2.
The present study systematically investigated the combustion characteristics of spent mushroom substrate (SMS) using TG-MS (thermogravimetric/mass spectrometry) and TG-FTIR (thermogravimetric/Fourier transform infrared spectrometry) under five heating rates. The physicochemical characteristics and combustion index pointed to SMS as a promising biofuel for power generation. The high correlation coefficient of the fitting plots and similar activation energy calculated by various methods indicated that four suitable iso-conversional methods were used. The activation energy varied from 130.06 to 192.95 kJ/mol with a mean value of 171.49 kJ/mol using Flynn-Wall-Ozawa and decreased with the increased conversion degree. The most common emissions peaked at the range of 200-400 °C corresponding to volatile combustion stage, except for CO, NO and NO. The peak CO emission occurred at 439.11 °C mainly due to the combustion of fixed carbon.
本研究采用 TG-MS（热重/质谱）和 TG-FTIR（热重/傅里叶变换红外光谱）在五种加热速率下系统地研究了废菌糠（SMS）的燃烧特性。理化特性和燃烧指数表明 SMS 是一种有前途的发电生物燃料。拟合曲线的高相关系数和不同方法计算出的相似活化能表明，使用了四种合适的等转化率方法。活化能在 130.06 到 192.95 kJ/mol 之间变化，平均为 171.49 kJ/mol，使用 Flynn-Wall-Ozawa 法，随着转化率的增加而降低。最常见的排放峰值出现在 200-400°C 范围内，对应于挥发性燃烧阶段，除了 CO、NO 和 NO。CO 的最大排放峰出现在 439.11°C，主要是由于固定碳的燃烧。
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