Ethyl biodiesel production from non-edible oils of Balanites aegyptiaca, Azadirachta indica, and Jatropha curcas seeds - Laboratory scale development

Svitlana Nitiema-Yefanova (1) , Lucie Coniglio (2) , Raphael Schneider (2) , Roger H. C. Nébié (3) , Yvonne L. Bonzi-Coulibaly (1)

1 UJZK - Université Joseph Ki-Zerbo [Université de Ouagadougou, Burkina Faso]
2 LRGP - Laboratoire Réactions et Génie des Procédés
3 Institut de Recherche en Sciences Appliquées et Technologiques

By starting first at the laboratory scale, optimal operating conditions for the reaction unit aimed at producing ethyl biodiesels from non-edible vegetable oils (NEVO) were determined with the ultimate objective of proposing an on-farm processing technology that should be sustainable for emerging countries. Three NEVO widely available in Burkina Faso were selected: Balanites aegyptiaca (BA), Azadirachta indica (AI), and Jatropha curcas (JC) oils. Their conversion to fatty acid ethyl esters (FAEE) was conducted via a two-stage procedure under atmospheric pressure: an alkali-catalyzed ethanolysis at ambient temperature for the BA and AI oils (leading to 93 and 87 wt.% FAEE respectively) and an acid catalyzed on the intermediate addition of glycerol at ambient temperature, the two-stage procedure combines chemical kinetics, chemical equilibrium, and phase equilibrium phenomena.

Mots clés: Ethyl biodiesel; Non-edible vegetable oils; Two-stage procedure; Single homogeneous catalyst; Intermediate glycerol addition

Domaines: Matériaux

Svitlana Nitiema-Yefanova, Lucie Coniglio, Raphael Schneider, Roger H. C. Nébié, Yvonne L. Bonzi-Coulibaly. Ethyl biodiesel production from non-edible oils of Balanites aegyptiaca, Azadirachta indica, and Jatropha curcas seeds - Laboratory scale development. Renewable Energy, 2016, 96, pp.881-890. ⟨10.1016/j.renene.2016.04.100⟩. ⟨hal-01323038⟩