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Open AccessFeature PaperArticle

Investigation of the Olive Mill Solid Wastes Pellets Combustion in a Counter-Current Fixed Bed Reactor

1
Ionized and Reactive Media Studies Research Unit (EMIR), Preparatory Institute of Engineering Studies of Monastir (IPEIM), University of Monastir, 15 Avenue Ibn El Jazar Monastir 5019, Tunisia
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Institute for Technical Chemistry (ITC), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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European Institute for Energy Research (EIFER), Karlsruhe Institute of Technology (KIT), Emmy-Noether-Str. 11, 76131 Karlsruhe, Germany
*
Author to whom correspondence should be addressed.
Energies 2018, 11(8), 1965; https://doi.org/10.3390/en11081965
Received: 28 June 2018 / Revised: 20 July 2018 / Accepted: 23 July 2018 / Published: 28 July 2018
(This article belongs to the Special Issue Biomass Chars: Elaboration, Characterization and Applications Ⅱ)
Combustion tests and gaseous emissions of olive mill solid wastes pellets (olive pomace (OP), and olive pits (OPi)) were carried out in an updraft counter-current fixed bed reactor. Along the combustion chamber axis and under a constant primary air flow rate, the bed temperatures and the mass loss rate were measured as functions of time. Moreover, the gas mixture components such as O2, organic carbon (Corg), CO, CO2, H2O, H2, SO2, and NOx (NO + NO2) were analyzed and measured. The reaction front positions were determined as well as the ignition rate and the reaction front velocity. We have found that the exhaust gases are emitted in acceptable concentrations compared to the combustion of standard wood pellets reported in the literature (EN 303-5). It is shown that the bed temperature increased from the ambient value to a maximum value ranging from 750 to 1000 °C as previously reported in the literature. The results demonstrate the promise of using olive mill solid waste pellets as an alternative biofuel for heat and/or electricity production. View Full-Text
Keywords: olive mill solid wastes (OMSWs); fixed bed combustor; pellets; combustion parameters; gaseous emissions olive mill solid wastes (OMSWs); fixed bed combustor; pellets; combustion parameters; gaseous emissions
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Mami, M.A.; Mätzing, H.; Gehrmann, H.-J.; Stapf, D.; Bolduan, R.; Lajili, M. Investigation of the Olive Mill Solid Wastes Pellets Combustion in a Counter-Current Fixed Bed Reactor. Energies 2018, 11, 1965.

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