title: Hydrothermal liquefaction of oil mill wastewater for bio-oil production in subcritical conditions.
abstract: The main purpose of this study is to investigate the direct hydrothermal liquefaction of oil mill wastewater (OMWW). Experiments were carried out at different temperatures (240-300°C), water contents (58-88wt.%) and reaction times (15-45min). Results show that the highest bio-oil yield was about 58wt.%, resulting in a higher heating value of 38MJ/kg. This was conducted at the following optimal conditions: water content 88wt.%, a temperature of 280°C, and 30min as reaction time. To put bio-oil into wide application, the various physical and chemical characteristics were determined. A detailed chemical composition analysis of bio-oil was performed by gas chromatography-mass spectrometry (GC-MS) coupled with a flame ionization detector (FID). The dominant compounds were identified by using NIST library. Analyses show that the bio-oil contains mainly oleic acid, hexadecanoic acid, fatty acid methyl ester, fatty acid ethyl ester, amino acid derived compounds and phenolic compounds.
authors.affiliation: Energetic and Mechanical Engineering Laboratory, UMBB, Boumerdes 35000, Algeria; GEPEA, UMR 6144, Energy Systems and Environment Department, Mines de Nantes, 04 rue Alfred Kastler, B.P. 20722, 44307 Nantes Cedex 3, France.
authors.forename: Loubna
authors.initials: L
authors.lastname: Hadhoum
authors.affiliation: Energetic and Mechanical Engineering Laboratory, UMBB, Boumerdes 35000, Algeria.
authors.forename: Mourad
authors.initials: M
authors.lastname: Balistrou
authors.affiliation: GEPEA, UMR 6144, Energy Systems and Environment Department, Mines de Nantes, 04 rue Alfred Kastler, B.P. 20722, 44307 Nantes Cedex 3, France.
authors.forename: Gaëtan
authors.initials: G
authors.lastname: Burnens
authors.affiliation: GEPEA, UMR 6144, Energy Systems and Environment Department, Mines de Nantes, 04 rue Alfred Kastler, B.P. 20722, 44307 Nantes Cedex 3, France. Electronic address: khaled.loubar@mines-nantes.fr.
authors.forename: Khaled
authors.initials: K
authors.lastname: Loubar
authors.affiliation: GEPEA, UMR 6144, Energy Systems and Environment Department, Mines de Nantes, 04 rue Alfred Kastler, B.P. 20722, 44307 Nantes Cedex 3, France.
authors.forename: Mohand
authors.initials: M
authors.lastname: Tazerout
mesh_terms: D056804:Biofuels; D018533:Biomass; D005410:Flame Ionization; D008401:Gas Chromatography-Mass Spectrometry; D006868:Hydrolysis; D031658:Olea / Q000737:chemistry* / Q000378:metabolism; D000069463:Olive Oil / Q000737:chemistry*; D012037:Refuse Disposal / Q000379:methods; D013696:Temperature; D062065:Wastewater / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D056804:Biofuels; D000069463:Olive Oil; D062065:Wastewater; D014867:Water
keywords: Bio-oil; Biomass conversion; Hydrothermal liquefaction; Oil mill wastewater