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Bio-Oil Derived from Teff Husk via Slow Pyrolysis Process in Fixed Bed Reactor and Its Characterization

Author

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  • Marcin Landrat

    (Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, Silesian University of Technology, 44-100 Gliwice, Poland)

  • Mamo T. Abawalo

    (Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, Silesian University of Technology, 44-100 Gliwice, Poland
    Faculty of Mechanical Engineering, Jimma Institute of Technology, Jimma University, Jimma P.O. Box 378, Ethiopia)

  • Krzysztof Pikoń

    (Department of Technologies and Installations for Waste Management, Faculty of Energy and Environmental Engineering, Silesian University of Technology, 44-100 Gliwice, Poland)

  • Roman Turczyn

    (Department of Physical Chemistry and Technology of Polymers, Faculty Chemistry, Silesian University of Technology, 44-100 Gliwice, Poland)

Abstract

Due to the depletion of fossil fuels and the destruction wrought by global warming caused by the combustion of fossil fuels, the search for renewable energy sources has become a major global concern. This study aimed to assess the bio-oil production from teff husk via slow pyrolysis process. The pyrolysis of teff husk took place in a batch reactor at a temperature between 400 °C and 500 °C with a 120 min retention time. At 450 °C, the pyrolysis process produced 32.96 wt.% of optimum bio-oil yield and had a HHV of 25.32 MJ/kg. TGA, FTIR, and SEM-EDX were used to analyze the produced bio-oil to investigate its thermal decomposition, functional groups, and surface morphology with its elemental composition, respectively. Alcohols, aromatic, phenols, alkanes, esters, and ethers were the primary compounds of the bio-oil produced by the slow pyrolysis of teff husk. The HHV of the biochar ranged from 21.22 to 22.85 MJ/kg. As a result, teff husk can be used to make biofuel; however, further bio-oil upgrading is needed for the produced teff husk bio-oil to be used effectively and commercially. Overall, the slow pyrolysis of teff husk offers a chance to produce biofuels with enhanced value that can be used for additional purposes.

Suggested Citation

  • Marcin Landrat & Mamo T. Abawalo & Krzysztof Pikoń & Roman Turczyn, 2022. "Bio-Oil Derived from Teff Husk via Slow Pyrolysis Process in Fixed Bed Reactor and Its Characterization," Energies, MDPI, vol. 15(24), pages 1-13, December.
  • Handle: RePEc:gam:jeners:v:15:y:2022:i:24:p:9605-:d:1007029
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    References listed on IDEAS

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    1. Roksana Muzyka & Szymon Sobek & Mariusz Dudziak & Miloud Ouadi & Marcin Sajdak, 2023. "A Comparative Analysis of Waste Biomass Pyrolysis in Py-GC-MS and Fixed-Bed Reactors," Energies, MDPI, vol. 16(8), pages 1-15, April.

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