Monir, Minhaj Uddin and Muntasir Shovon, Shaik and Akash, Faysal Ahamed and Habib, Md Ahosan and Techato, Kuaanan and Azrina, Abd Aziz and Chowdhury, Shahariar and Eka Prasetya, Tofan Agung (2024) Comprehensive characterization and kinetic analysis of coconut shell thermal degradation : Energy potential evaluated via the Coats-Redfern method. Case Studies in Thermal Engineering, 55 (104186). pp. 1-11. ISSN 2214-157X. (Published)
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Abstract
Coconut shell represents a promising biomass for energy production, given their wide availability. In this study, the thermo-kinetics of coconut shells were examined through thermogravimetric analysis from 30 °C to 1000 °C at 5 °C/min under N2. Advanced analytical tools assessed the elemental, microstructural, and morphological attributes of the samples. The thermal degradation unveiled three phases: dehydration, devolatilization, and combustion. Notably, the Coats-Redfern method detailed the devolatilization stage, pinpointing the coconut shell's thermal and kinetic attributes. The Zhuravlev diffusion equation (DM6) emerged as the most suitable model, with an activation energy (Ea) and pre-exponential factor of 68.9 kJ mol−1 and 0.05 min−1, respectively. Thermodynamic values such as enthalpy (ΔH), Gibbs free energy (ΔG), and entropy (ΔS) for devolatilization were 65.2, 193.1, and −0.28117, respectively. Collectively, the findings underscore the significant bioenergy potential of coconut shells, positioning them as a sustainable alternative to traditional energy. Such insights play a crucial role in improving pyrolysis reactor designs and comprehending the mechanisms of coconut shell pyrolysis, offering potential solutions for energy deficits and environmental concerns.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Activation energy; Coats-Redfern method; Coconut shell pyrolysis; Kinetic analysis; Thermodynamic characteristics |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Faculty/Division: | Faculty of Civil Engineering Technology |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 21 May 2024 07:10 |
| Last Modified: | 21 May 2024 07:10 |
| URI: | http://umpir.ump.edu.my/id/eprint/40976 |
| Download Statistic: | View Download Statistics |
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