A Comprehensive Study on Effect of Biofuel Blending Obtained from Hydrothermal Liquefaction of Olive Mill Waste Water in Internal Combustion Engine

Fatma Zohra Aklouche, Loubna Hadhoum, Khaled Loubar () and Mohand Tazerout
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Fatma Zohra Aklouche: IMT Atlantique, Energy Systems and Environment Department, GEPEA, UMR CNRS 6144, 04 Rue Alfred Kastler, CS 20722, 44307 Nantes, France
Loubna Hadhoum: IMT Atlantique, Energy Systems and Environment Department, GEPEA, UMR CNRS 6144, 04 Rue Alfred Kastler, CS 20722, 44307 Nantes, France
Khaled Loubar: IMT Atlantique, Energy Systems and Environment Department, GEPEA, UMR CNRS 6144, 04 Rue Alfred Kastler, CS 20722, 44307 Nantes, France
Mohand Tazerout: IMT Atlantique, Energy Systems and Environment Department, GEPEA, UMR CNRS 6144, 04 Rue Alfred Kastler, CS 20722, 44307 Nantes, France

Energies, 2023, vol. 16, issue 6, 1-16

Abstract: The production of biofuel from olive mill wastewater (OMWW) may be one of the promising techniques for use in diesel engines. In this study, biofuel was produced from the hydrothermal liquefaction of OMWW using a methanol-water co-solvent. Biofuel blends of 10% (B10), 20% (B20) and 30% (B30) by volume of biofuel, were prepared. The chemical and physical properties of biofuel blends are mostly similar to those of conventional diesel fuel. The engine speed was kept constant (1500 rpm) throughout the tests under different engine loads (25, 50, 75 and 100%). The effects of biofuel-diesel blends on exhaust emissions and engine performance were investigated. The results show that the in-cylinder pressure follows almost the same trend for all fuels. However, at high loads, with increasing biofuel blend, the combustion duration tends to become longer. The B10 blend provided close results to diesel fuel in terms of performance and polluting emissions. Moreover, the use of B10 resulted in reduced emission levels, with 11% of unburned hydrocarbons, 12% of particles and 26% of carbon dioxide compared to the other blends.

Keywords: olive mill wastewater; biofuel blend; diesel engine; combustion analysis; pollutant emissions (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: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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