Abstract
Abstract The kinetic and thermodynamic analysis of the plant biomass waste of Banyan tree (Ficus Benghalensis) was carried out using thermo gravimetric analysis (TGA) at different heating rates of 10, 25 and 50°C min-1 under an inert atmosphere of nitrogen. Using iso-conversional models of Kissenger-Akahira-Sunrose (KAS) and Ozawa-Flynn-Wall (OFW), the average activation energy values were found to be of the range of 73.03 kJmol-1 and 79.74 kJmol-1, respectively. The application of Coats-Redfern method predicted that most appropriate mechanisms followed by thermal degradation of Banyan tree biomass are D5 and F3, based on diffusion and chemical reaction respectively, involving both exothermic and endothermic reactions for the temperature range under study. A kinetic compensation effect was found to follow the equation: lnA0=-4.1575+0.2042E. The Gibbs free energy value of ∼176.24 kJmol-1 and a difference of about ∼5 kJmol-1 between activation energy and enthalpy of the reaction indicate favorable product formation with considerable bio energy potential of Banyan tree biomass waste
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