Briquettes Production from Olive Mill Waste under Optimal Temperature and Pressure Conditions: Physico-Chemical and Mechanical Characterizations

Saaida Khlifi, Marzouk Lajili, Saoussen Belghith, Salah Mezlini, Fouzi Tabet and Mejdi Jeguirim
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Saaida Khlifi: Ionized and Reactive Media Studies Research Unit (EMIR), Preparatory Institute of Engineering Studies of Monastir (IPEIM), University of Monastir, Monastir 5019, Tunisia
Marzouk Lajili: Ionized and Reactive Media Studies Research Unit (EMIR), Preparatory Institute of Engineering Studies of Monastir (IPEIM), University of Monastir, Monastir 5019, Tunisia
Saoussen Belghith: Mechanical Engineering Laboratory, National Engineering School of Monastir (ENIM), University of Monastir, Monastir 5019, Tunisia
Salah Mezlini: Mechanical Engineering Laboratory, National Engineering School of Monastir (ENIM), University of Monastir, Monastir 5019, Tunisia
Fouzi Tabet: Institut de Combustion Aérothermique Réactivité et Environnement, UPR3021 CNRS, Université d’Orléans, 45100 Orléans, France
Mejdi Jeguirim: Institute des Sciences de Matériaux de Mulhouse, Université de Haute Alsace, 68093 Mulhouse, France

Energies, 2020, vol. 13, issue 5, 1-14

Abstract: This paper aims at investigating the production of high quality briquettes from olive mill solid waste (OMSW) mixed with corn starch as a binder for energy production. For this purpose, different mass percentages of OMSW and binder were considered; 100%-0%, 90%-10%, 85%-15%, and 70%-30%, respectively. The briquetting process of the raw mixtures was carried out based on high pressures. Physico-chemical and mechanical characterizations were performed in order to select the best conditions for the briquettes production. It was observed that during the densification process, the optimal applied pressure increases notably the unit density, the bulk density, and the compressive strength. Mechanical characterization shows that the prepared sample with 15% of corn starch shows the best mechanical properties. Moreover, the corn starch binder affects quietly the high heating value (HHV) which increases from 16.36 MJ/Kg for the 100%-0% sample to 16.92 MJ/Kg for the 85%-15% sample. In addition, the kinetic study shows that the binder agent does not affect negatively the thermal degradation of the briquettes. Finally, the briquettes characterization shows that the studied samples with particles size less than 100 μm and blended with 15% of corn starch binder are promising biofuels either for household or industrial plants use.

Keywords: olive mill solid wastes; natural binder; densification; compressive strength; Physico-chemical properties; kinetic parameters (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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