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Thermal Decomposition Kinetics of Torrefied Oil Palm Empty Fruit Bunch Briquettes

Bemgba Nyakuma1, Arshad Ahmad1, Anwar Johari1, Tuan Abdullah1, Olagoke Oladokun1, Habibu Uthman2 and Muhamad Halim3
1Institute of Future Energy, Centre for Hydrogen Energy, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia;, 2Centre for Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, International campus, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia 3Centre of Polymer Composite Research & Technology (PoCResT), Institute of Science, Universiti Teknologi MARA (UiTM), Shah Alam, Selangor, Malaysia
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The study is aimed at investigating the thermal behavior and decomposition kinetics of torrefied oil palm empty fruit bunches (OPEFB) briquettes using a thermogravimetric (TG) analysis and the Coats-Redfern model. The results revealed that thermal decomposition kinetics of OPEFB and torrefied OPEFB briquettes is significantly influenced by the severity of torrefaction temperature. Furthermore, the temperature profile characteristics; Tonset, Tpeak, and Tend increased consistently due to the thermal lag observed during TG analysis. In addition, the torrefied OPEFB briquettes were observed to possess superior thermal and kinetic properties over the untorrefied OPEFB briquettes. It can be inferred that torrefaction improves the fuel properties of pelletized OPEFB for potential utilization in bioenergy conversion systems.

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