Kinetic and thermodynamic analysis of Putranjiva roxburghii (putranjiva) and Cassia fistula (amaltas) non-edible oilseeds using thermogravimetric analyzer

Abhisek Sahoo, Sachin Kumar and Kaustubha Mohanty

Renewable Energy, 2021, vol. 165, issue P1, 261-277

Abstract: Kinetic triplets and thermodynamic parameters of the pyrolysis of Putranjiva roxburghii (PR) and Cassia fistula (CF) non-edible oilseeds were studied using thermogravimetric analyzer. The kinetic parameters were assessed using both model-free [Kissinger-Akahira-Sunose (KAS), Flynn-Wall-Ozawa (OFW), Starink (STR), Li and Tang (LTA), Friedman (FRM), Vyazovkin (VYZ), Kissinger (KN), Avrami (AVM), and Master plot (MP)] and model-fitting [Coats-Redfern (CR)] methods at four different heating rates (10, 25, 40, and 55 °C/min) somewhere in the range of 10% and 80% conversions. The reaction mechanisms were found to be in good agreement with the experimental thermal analysis data. Thermodynamic parameters (ΔG, ΔH, and ΔS) are also determined by model-free isoconversional method. The kinetic and thermodynamic parameters recommended the appropriateness of PR and CF non-edible oilseeds for pyrolysis process.

Keywords: Putranjiva and amaltas seed; Non-isothermal pyrolysis kinetics; TGA analysis; Reaction mechanism; Thermodynamic analysis (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (8)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:165:y:2021:i:p1:p:261-277

DOI: 10.1016/j.renene.2020.11.011

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