Effects of recycle type on solvent extraction through a parallel-plate membrane module

The effects of recycle type on membrane extraction through a parallel-plate module has been studied. Theoretical predictions are in fairly good agreement with the experimental results. Considerable improvement in mass-transfer is obtainable if membrane extraction is operated with recycle which provides the effects of pre-extraction and increasing fluid velocity. The influences of recycle type on the performance of membrane extraction, as well as on the fixed and operating costs, have been also discussed.