Hollow fibre modules for orange juice aroma recovery using pervaporation

摘要

The use of poly (dimethyl siloxane) PDMS hollow fibres was investigated in orange juice aroma recovery. Modules for pervaporation were designed and built for this purpose, scrutinized with binary ester-water feeds and compared to other module geometries using experimental enrichment factors and mass transfer coefficient values. Operational variables tested for the aroma separation included feed flow rate and aroma feed concentration. Further experimental runs were carried out with an industrial multicomponent feed consisting of an aqueous orange juice by-product. The results show the good potential of the modules for dilute aroma recovery.