Thermal and chemical characterization of lignocellulosic wastes for energy uses

G. Charis, G. Danha, E. Muzenda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Two forms of waste lignocellulosic biomass-pine sawdust milling residues from Zimbabwe and Acacia tortilis, an encroacher species from rangelands and urban circles of Botswana-are characterized to evaluate pertinent thermal and chemical properties. Characterization is useful for Acacia tortilis, whose properties have scarcely been studied The ultimate analysis reveals that Pine has a CHNO composition of 45.76%, 5.54%, 0.039% and 48.66% respectively, while the Acacia elemental composition is C (41.47%), H (5.15%), N (1.23%) and O (52.15%). Thermogravimetry results showed that A. tortilis’ ash, fixed carbon and volatiles matter composition was 3.90%, 15.59% and 76.51% respectively on a dry basis; while pine was 0.83%, 20% and 79.16% respectively. The high heating value for Acacia was found to be 17.27 MJ/kg compared to 17.57 MJ/kg for pine. The research establishes that A. tortilis’ fuel properties are comparable to pin. A. tortilis’ high ash content is below critical values.

Original languageEnglish
Title of host publicationWastes
Subtitle of host publicationSolutions, Treatments and Opportunities III - Selected papers from the 5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019
EditorsCândida Vilarinho, Fernando Castro, Margarida Gonçalves, Ana Luísa Fernando
PublisherCRC Press/Balkema
Pages518-523
Number of pages6
ISBN (Print)9780367257774
DOIs
Publication statusPublished - 2020
Event5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019 - Costa da Caparica, Portugal
Duration: Sep 4 2019Sep 6 2019

Publication series

NameWastes: Solutions, Treatments and Opportunities III - Selected papers from the 5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019

Conference

Conference5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019
CountryPortugal
CityCosta da Caparica
Period9/4/199/6/19

All Science Journal Classification (ASJC) codes

  • Environmental Science(all)

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  • Cite this

    Charis, G., Danha, G., & Muzenda, E. (2020). Thermal and chemical characterization of lignocellulosic wastes for energy uses. In C. Vilarinho, F. Castro, M. Gonçalves, & A. L. Fernando (Eds.), Wastes: Solutions, Treatments and Opportunities III - Selected papers from the 5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019 (pp. 518-523). (Wastes: Solutions, Treatments and Opportunities III - Selected papers from the 5th International Conference Wastes: Solutions, Treatments and Opportunities, 2019). CRC Press/Balkema. https://doi.org/10.1201/9780429289798-82