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Article

Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique

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Faculty of Environmental Sciences, Nasarawa State University, Keffi 961101, Nigeria
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Faculty of Environmental Studies, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia
3
Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia
4
Laboratory of Biopolymer and Derivatives, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, UPM Serdang, Selangor 43400, Malaysia
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(6), 2468; https://doi.org/10.3390/su12062468
Received: 29 January 2020 / Revised: 7 February 2020 / Accepted: 7 February 2020 / Published: 21 March 2020
(This article belongs to the Section Energy Sustainability)
The objective of this research was to investigate the quality of hybrid briquettes developed from corncobs (CC) and oil palm trunk bark (OPTB) under a low-pressure densification technique. The materials were combined in varying ratios of CC to OPTB (100:0, 75:25, 50:50, 25:75, 0:100) and wastepaper pulp (10% by weight) was added to each mixture as a binder. The briquettes were produced using a manually operated 20-tonne hydraulic piston press at 28 °C temperature and ≤7 MPa compaction pressure. The mechanical strength of the briquettes was determined by the drop test and compression test methods, while a bomb calorimeter was used to determine the calorific values. The results showed that the physical properties of hybrid briquettes ranged from 9.24–10.00% moisture content, 0.38–0.40 g/cm3 density, and 87.60%–92.00% water resistance. Mechanical strength showed a 98.28%–99.08% shatter index and 18.47–21.75 MPa compressive strength, while calorific values ranged from 16.54–16.91 MJ/kg. The hybrid briquettes fared better than the CC briquettes. The significance of this study lies in the production of briquettes with suitable physical, mechanical and thermal properties by utilizing OPTB which have hitherto not been used, mixed with corncobs. This could bring substantial environmental and socio-economic benefits to rural communities of the developing countries. View Full-Text
Keywords: Corncobs; oil palm trunk; bark; hybrid briquettes; density; compressive strength; calorific value; low pressure Corncobs; oil palm trunk; bark; hybrid briquettes; density; compressive strength; calorific value; low pressure
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MDPI and ACS Style

Kpalo, S.Y.; Zainuddin, M.F.; Manaf, L.A.; Roslan, A.M. Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique. Sustainability 2020, 12, 2468. https://doi.org/10.3390/su12062468

AMA Style

Kpalo SY, Zainuddin MF, Manaf LA, Roslan AM. Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique. Sustainability. 2020; 12(6):2468. https://doi.org/10.3390/su12062468

Chicago/Turabian Style

Kpalo, Sunday Y., Mohamad F. Zainuddin, Latifah A. Manaf, and Ahmad M. Roslan 2020. "Production and Characterization of Hybrid Briquettes from Corncobs and Oil Palm Trunk Bark under a Low Pressure Densification Technique" Sustainability 12, no. 6: 2468. https://doi.org/10.3390/su12062468

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