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. 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.
