In the process of continuous fermentation with pervaporation(PVAP),ethanol can be removed and concentrated simultaneously from the broth. In this work, two kinds of modified PDMS (polydimethylsiloxane) membranes used ...In the process of continuous fermentation with pervaporation(PVAP),ethanol can be removed and concentrated simultaneously from the broth. In this work, two kinds of modified PDMS (polydimethylsiloxane) membranes used for PVAP have been tested, the characteristics and kinetics of the process were investigated, and a set of kinetic equations has been derived along with the experimental results. The results show some major advantages of this process over that with ultrafiltration, more concentrated ethanol can be obtained from the broth directly; no appreciable fouling on the membrane and the process can be controlled steadily.展开更多
基金Project supported by the Science Fund of Chinese Academy of Science.
文摘In the process of continuous fermentation with pervaporation(PVAP),ethanol can be removed and concentrated simultaneously from the broth. In this work, two kinds of modified PDMS (polydimethylsiloxane) membranes used for PVAP have been tested, the characteristics and kinetics of the process were investigated, and a set of kinetic equations has been derived along with the experimental results. The results show some major advantages of this process over that with ultrafiltration, more concentrated ethanol can be obtained from the broth directly; no appreciable fouling on the membrane and the process can be controlled steadily.
