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Experimental Evaluation of Napier Grass Gasification in an Autothermal Bubbling Fluidized Bed Reactor

Author

Listed:
  • Ramin Khezri

    (Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Wan Azlina Wan Ab Karim Ghani

    (Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia
    Sustainable process engineering research Center, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Dayang Radiah Awang Biak

    (Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Robiah Yunus

    (Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia)

  • Kiman Silas

    (Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Malaysia)

Abstract

Air gasification of Napier grass (NG) was studied with the target of producing combustible synthesis gas to be used in direct combustion for power generation. A small-scale autothermal bubbling fluidized bed gasifier was used to investigate the effect of reactor temperature, equivalence ratio (ER), and static bed height (SBH) on gasification performance and combustibility of the producer gas. The main generated species in syngas were identified through gas chromatography (GC) analysis. Minimum fluidization conditions were determined at different levels of SBH. Experiments carried out with two intentions of first, to achieve the highest composition of combustible species to ensure the maximum Lower Heating Value (LHV) of syngas and second, to obtain a high performance process with maximum yield of syngas and minimum residues. The results showed that the temperature and ER have significant effects on syngas yield and composition. SBH was found have a substantial effect on the production of H 2 and CO. The results from this study was compared to other gasification studies from literature which have evaluated biomass gasification in bubbling fluidized bed reactors with different scales but almost similar method of experimentation. The purpose of verification was to demonstrate the effect of different reactor scales and heating characteristics on the results.

Suggested Citation

  • Ramin Khezri & Wan Azlina Wan Ab Karim Ghani & Dayang Radiah Awang Biak & Robiah Yunus & Kiman Silas, 2019. "Experimental Evaluation of Napier Grass Gasification in an Autothermal Bubbling Fluidized Bed Reactor," Energies, MDPI, vol. 12(8), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:8:p:1517-:d:224961
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    References listed on IDEAS

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    1. Arthur M. James R. & Wenqiao Yuan & Michael D. Boyette, 2016. "The Effect of Biomass Physical Properties on Top-Lit Updraft Gasification of Woodchips," Energies, MDPI, vol. 9(4), pages 1-13, April.
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    8. Prabowo, Bayu & Umeki, Kentaro & Yan, Mi & Nakamura, Masato R. & Castaldi, Marco J. & Yoshikawa, Kunio, 2014. "CO2–steam mixture for direct and indirect gasification of rice straw in a downdraft gasifier: Laboratory-scale experiments and performance prediction," Applied Energy, Elsevier, vol. 113(C), pages 670-679.
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    Cited by:

    1. Carlos Vargas-Salgado & Elías Hurtado-Pérez & David Alfonso-Solar & Anders Malmquist, 2021. "Empirical Design, Construction, and Experimental Test of a Small-Scale Bubbling Fluidized Bed Reactor," Sustainability, MDPI, vol. 13(3), pages 1-22, January.
    2. Pei, Haipeng & Jin, Baosheng & Huang, Yaji, 2020. "Quantitative analysis of mass and energy flow in rice straw gasification based on mass and carbon balance," Renewable Energy, Elsevier, vol. 161(C), pages 846-857.

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