Production and characterization of bio-oil from the pyrolysis of waste frying oil.
In this present work, the disposal of waste frying oil was explored. The experiment tests were performed under nitrogen (N2) atmosphere at 5 °C/min heating rate from the ambient temperature to 500 °C. In these operating conditions, the obtained pyrolitic liquid fraction was 76 wt% formed by 63.87 wt% of crude bio-oil and 12.13 wt% of aqueous fraction. The chemical characterization using FTIR, GC, and GC/MS has revealed that the bio-oil is a complex chemical mixture of linear saturated, unsaturated, and cyclic hydrocarbons and oxygenated compounds such as carboxylic acids, ketones, aldehydes, and alcohols. Moreover, the produced bio-oil can be considered as promising fuel with high calorific value (∼39 MJ/kg). However, the higher acidity (∼125 mg KOH/g sample) and viscosity (9.53 cSt at 40 °C) limit currently its direct use in engines. Therefore, although several promising results, further investigations are requested to improve the bio-oil quality in order to find an environmentally friendly issue to waste frying oil.
Centre de Recherche et des Technologies de l'Energie, Technopôle Borj-Cédria, B.P No. 95, 2050, Hammam Lif, Tunisia. takwakraiem@yahoo.com.|Faculté des Sciences de Tunis, Université de Tunis El Manar, 2092, Tunis, Tunisia. takwakraiem@yahoo.com.
Takwa
T
Kraiem
Centre de Recherche et des Technologies de l'Energie, Technopôle Borj-Cédria, B.P No. 95, 2050, Hammam Lif, Tunisia.
Aida Ben
AB
Hassen
Faculté des Sciences de Tunis, Université de Tunis El Manar, 2092, Tunis, Tunisia.
Habib
H
Belayouni
Institut de Science des Matériaux de Mulhouse, UMR 7361 CNRS, 15, rue Jean Starcky, 68057, Mulhouse, France. mejdi.jeguirim@uha.fr.
Mejdi
M
Jeguirim
D056804:Biofuels; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature
D056804:Biofuels
Bio-oil; FTIR; GC/MS; Pyrolysis; Waste frying oil
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