| REMOVAL OF ETHANOL FROM CONTINUOUS FERMENTATION BROTH BY PERVAPORATION |
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| 作者姓名： | 刘又年 朱长乐 刘茉娥 |
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| 作者单位： | Zhejiang University Hangzhou 310027 Zhejiang，Zhejiang University Hangzhou 310027 Zhejiang，Zhejiang University Hangzhou 310027 Zhejiang |
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| 基金项目： | Project supported by the Science Fund of Chinese Academy of Science. |
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| 摘 要： | 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.
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| 关 键 词： | pervaporation ethanol continuous formentation membrane processes |
| 收稿时间： | 1991-3-22 |
| 修稿时间： | 1991-8-19
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REMOVAL OF ETHANOL FROM CONTINUOUS FERMENTATION BROTH BY PERVAPORATION |
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| LIU Younian,ZHU Changluo,LIU Moe.REMOVAL OF ETHANOL FROM CONTINUOUS FERMENTATION BROTH BY PERVAPORATION[J].Chinese Journal of Chemical Engineering,1992,7(1):108-118. |
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| Authors: | LIU Younian ZHU Changluo LIU Moe |
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| Affiliation: | Zhejiang University, Hangzhou, 310027, Zhejiang |
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| Abstract: | 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. |
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| Keywords: | pervaporation ethanol continuous formentation membrane processes |
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