Article Number: DRJCMS7831027806

DOI: https://doi.org/10.26765/DRJCMS7831027806

ISSN: 2354-4163

Vol. 7 (2), pp. 20-25, April 2020

Copyright © 2020

Author(s) retain the copyright of this article


Original Research Article

Energy Characterization of Briquettes Produced from Barks of Tropical Hardwoods species

*Olayiwola, Y. B.

Noah, A. S.

Ogutuga, S. O.

Akanni-John, R.


Abstract

Until recently, bark is treated as a waste, thus, research is directed at studying the utilization of bark residue for briquette production. This study investigated and compared briquettes produced from barks of selected tropical hardwood species using starch as a binding agent. The bark of Acacia nilotica wild ex, Daniellia oliveri (Rolfe) Hutch, and Detarium senegalense J. F. Gmel were grounded and sieve with 1.5 mm sieve. The granulometric fractions were used to produce briquettes by weighing approximate quantities at a constant mixing ratio of 5:1 of bark granules to starch respectively. The starch was prepared with 250 ml of hot water at 100°C to form the prepared stock. The briquette was produced and analyzed with six (6) replicates from each species and combustion related properties such as ash content, volatile matter, fixed carbon, and heating value which are important index used in estimating the quality of solid fuel materials such as briquette were assessed using standard methods. The mean ash content, volatile matter, fixed carbon and heating values range from 6.92 ± 0.34 to 4.22 ± 0.17 %; 18.07 ± 0.55 to 12.46 ± 0.82 %; 83.05 ± 0.58 to 78.32 ± 0.78 %, and 32.82 ± 0.13 to 30.02 ± 0.09 % respectively. Based on the result of analysis carried out at a 5 % level of significance, briquette produced  Detarium senegalense bark gave a significantly better performance as solid fuel material than the other species, the overall efficiency of the briquette produced based on the general proximate analysis follows the trend: and Detarium senegalense > Daniellia oliveri > Acacia nilotica. Thus, and Detarium senegalense bark is more efficient for briquette production due to the better performance obtained in all the parameters assessed and a cheaper way of bark residual fuel utilization in rural areas.


Keywords:  Bark granules; ash content; volatile matter; carbon content; heating value and briquette production

 


 Received: February 15, 2020  Accepted: March 30, 2020  Published: April 30, 2020

Olayiwola Et Al


Copyright © 2020 Direct Research Journal of Chemistry and Material Science