Two phase residence time distribution in a modified twin screw extruder

Biomass fractionation is performed with a modified Clextral twin-screw extr uder used as a thermo-mechano-chemical reactor. This new process is firstly analyzed. Visual observations, residence time distributions, and global ma ss balances are used to obtain information about the process phenomena and their coupling. Residence time distributions (RTD) classical models are ado pted to represent the experimental plots. The influence of continuous and d iscrete process parameters upon the RTD of the solid and liquid phases is a nalyzed. (C) 1999 Elsevier Science S.A. All rights reserved.