A one dimensional model for the prediction of extraction yields in a two phases modified twin-screw extruder

Laurent Prat (1) , Pascal Guiraud (1) , Luc Rigal (2) , Christophe Gourdon (1)

1 LGC - Laboratoire de Génie Chimique
2 CAI - Chimie Agro-Industrielle

Solid/liquid extraction is performed on raw plant substrate with a modified twin-screw extruder (TSE) used as a thermo-mecanochemical reactor. Visual observations and experimental residence time distributions (RTD) are used to develop a solid transport model based on classical chemical engineering method. Modeled and experimental residence times are compared. The transport model is then coupled with a reactive extraction model in order to predict extraction yields.

Mots clés: Twin-screw extruder; Solid/liquid extraction; Two-phase residence time distribution; Transport phenomena; Raw plant substrate

Domaines: Génie chimique

Laurent Prat, Pascal Guiraud, Luc Rigal, Christophe Gourdon. A one dimensional model for the prediction of extraction yields in a two phases modified twin-screw extruder. Chemical Engineering and Processing: Process Intensification, 2002, 4 (9), pp.743-751. ⟨10.1016/S0255-2701(02)00003-X⟩. ⟨hal-03604561⟩