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Updated: Sep 21, 2025

Fast Pyrolysis of Biomass Residues in a Twin-screw Mixing Reactor
Published on: September 9, 2016
Insights on kinetic triplets and thermodynamic analysis of Delonix regia biomass pyrolysis
D Rammohan1, N Kishore1, R V S Uppaluri1
1Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
Abstract:
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-1, the average activation energy and pre-exponential factor varied in the range 202.34-205.89 kJ mol-1 and 4.98 × 1017 - 2.04 × 1020 s-1 respectively. Corresponding average enthalpy and Gibbs free energy varied from 196.84 to 200.87 kJ mol-1 and from 182.64 to 206.41 kJ mol-1 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.
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