Polyether-block-amide thin-film composite hollow fiber membranes for the recovery of butanol from ABE process by pervaporation

• PEBA thin-film composite hollow fiber were fabricated by coating. Pervaporation tests carried out with membranes of different active layer thicknesses. Good performance for recovery butanol from ABE mixtures. Membrane support has a relevant contribution to mass transfer resistance. This work reports the continuation previous efforts recover (acetone-butanol-ethanol) fermentation process pervaporation (PV). A key aspect improve efficiency technology is membrane used perform selective separation; hence, this study focuses on implementation (HF) configuration separation PV as opposed flat sheet configuration. The HF preparation was done dip coating, frequently production membranes, which involves deposition thin film coating solution. Different thicknesses obtained modifying polymer content in solution, allowing later evaluate influence thickness performance. includes description procedure prepare its characterization and an analysis operating conditions SEM water contact angle characterize produced membranes. transport phenomena characterized using resistances-in-series model. results allow adopt criterion select most suitable layer, allows achieve adequate performance, reveal importance choice material. Finally, comparative self-made terms flux, factor PSI respect those found literature presented.