Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
Bioresour Technol. 2022 Aug;358:127375. doi: 10.1016/j.biortech.2022.127375. Epub 2022 May 24.
The aim of this work was to study the pyrolysis of Delonix regia biomass with non-isothermal thermogravimetric experiments. The targeted objective was to investigate kinetic triplets and thermodynamic parameters. Five iso-conversional methods, namely Differential Friedman, Kissinger-Akahira-Sunose, Ozawa-Flynn-Wall, Starink, and Distributed Activation Energy, have been considered. In the adopted heating rates of 5-55 °C min, the average activation energy and pre-exponential factor varied in the range 202.34-205.89 kJ mol and 4.98 × 10 - 2.04 × 10 s respectively. Corresponding average enthalpy and Gibbs free energy varied from 196.84 to 200.87 kJ mol and from 182.64 to 206.41 kJ mol respectively. Pyrolysis mechanism have been confirmed by Avrami-Erofeyev (A4), power-law (P2 and P4) and reaction (F1, F2, and ≥ F5) according to Criado's master plots.
这项工作的目的是研究无忧花生物质的热解，采用非等温热重实验进行研究。目标是研究动力学三参数和热力学参数。采用了五种等转化率方法，即微分弗里德曼法、基辛格-阿哈利亚-松野法、奥扎瓦-弗林-沃尔法、斯塔林克法和分布活化能法。在所采用的 5-55°C/min 的加热速率下，平均活化能和指前因子的范围分别为 202.34-205.89 kJ/mol 和 4.98×10 -2.04×10 s。相应的平均焓和吉布斯自由能分别在 196.84-200.87 kJ/mol 和 182.64-206.41 kJ/mol 之间变化。根据 Criado 的主图，通过阿夫拉米-埃罗菲耶夫（A4）、幂律（P2 和 P4）和反应（F1、F2 和≥F5）确认了热解机制。
