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Experimental evaluation of Napier grass gasification in an autothermal bubbling fluidized bed reactor


Khezri, Ramin and Wan Ab. Karim Ghani, Wan Azlina and Awang Biak, Dayang Radiah and Yunus, Robiah and Silas, Kiman (2019) Experimental evaluation of Napier grass gasification in an autothermal bubbling fluidized bed reactor. Energies, 12 (8). art. no. 1517. pp. 1-18. ISSN 1996-1073


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 H2 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.

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Official URL or Download Paper: https://www.mdpi.com/1996-1073/12/8/1517

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.3390/en12081517
Publisher: MDPI
Keywords: Gasification; Autothermal; Biomass conversion; Fluidized bed; Napier grass; Optimization
Depositing User: Nabilah Mustapa
Date Deposited: 04 May 2020 16:26
Last Modified: 04 May 2020 16:26
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/en12081517
URI: http://psasir.upm.edu.my/id/eprint/38387
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