Study of Combustion Characteristics and Kinetics of Agriculture Briquette Using Thermogravimetric Analysis.
Study of Combustion Characteristics and Kinetics of Agriculture Briquette Using Thermogravimetric Analysis.
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DOI：
10.1021/acsomega.1c01249
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发表时间：
2021-06-22
期刊：
影响因子：
4.1
通讯作者：
Gao F
中科院分区：
文献类型：
--
作者：
Liu J;Jiang X;Cai H;Gao F
研究了玉米秸秆秸秆作为燃料的理化性质和燃烧特性。理化性质测试结果表明，玉米秸秆具有较高的挥发分、较低的灰分和较高的热值。在10、15和20 ° C/min的不同加热速率下，使用热重分析法研究了燃烧特性和动力学分析。观察到最大燃烧速率随着加热速率的增加而向更高的温度移动。此外，较低的加热速率将有助于更好的热传递，导致更少的质量残留。相比之下，燃烧特性指数在较高的加热速率下显示出近2倍的增加，表明良好的燃烧性能。采用Kissinger-Akahira-Sunose和Ozawa-Flynn-Wall等转化率法对燃烧动力学进行了计算，得到的平均活化能分别为108.85和114.42 kJ/mol。研究结果可为农业生物质能的进一步利用提供理论依据和数据支持。
The present paper was aimed to investigate the physicochemical properties and combustion characteristics of corn straw briquette as a fuel energy. The results of physicochemical properties displayed that corn straw briquette has higher volatile matter, lower ash content, and higher heating value. Combustion characteristics and kinetic analysis were investigated using thermogravimetry analysis at various heating rates of 10, 15, and 20 °C/min. It was observed that the maximum burning rate shifted to a higher temperature as the heating rate increased. In addition, a lower heating rate would help in better heat transfer, leading to less mass residual. In contrast, the combustion characteristic index showed a nearly 2-fold increase under a higher heating rate, indicating a good combustion performance. The combustion kinetics were expressed using isoconversional methods with Kissinger–Akahira–Sunose and Ozawa–Flynn–Wall methods, which authenticated the average activation energy at 108.85 and 114.42 kJ/mol, respectively. These results can provide a theoretical basis and data support for further utilization of agriculture biomass briquette.
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