Anna University, Institute for Energy Studies, Department of Mechanical Engineering, Chennai, Tamil Nadu 600025, India.
Anna University, Institute for Energy Studies, Department of Mechanical Engineering, Chennai, Tamil Nadu 600025, India.
Bioresour Technol. 2017 Jun;233:413-422. doi: 10.1016/j.biortech.2017.02.119. Epub 2017 Feb 28.
This paper deals with the pyrolysis of Prosopis juliflora fuelwood using thermogravimetric analysis to determine the kinetic parameters at six different heating rates of 2, 5, 10, 15, 20 and 25°C/min. The activation energy of pyrolysis was calculated using different methods, namely Kissinger, Kissinger-Akahira-Sunose, Ozawa-Flynn-Wall and Friedman model and corresponding calculated activation energy were found to be 164.6, 204, 203.2, and 219.3kJ/mol, respectively for each method. The three-pseudo component model was applied to calculate the following three kinetic parameters: activation energy, pre-exponential factor and order of reaction. The experimental results were validated with model prediction for all the six heating rates. The three-pseudo component model is able to predict experimental results much accurately while considering variable order reaction model (n≠1).
本文使用热重分析研究了刺槐燃料的热解过程，以确定在 2、5、10、15、20 和 25°C/min 六种不同加热速率下的动力学参数。使用 Kissinger、Kissinger-Akahira-Sunose、Ozawa-Flynn-Wall 和 Friedman 模型计算了热解的活化能，相应的计算活化能分别为 164.6、204、203.2 和 219.3 kJ/mol。应用三伪组分模型计算了以下三个动力学参数：活化能、指前因子和反应级数。实验结果与所有六种加热速率下的模型预测值进行了验证。三伪组分模型能够更准确地预测实验结果，同时考虑了可变反应级数模型（n≠1）。
