| Summary: | 碩士 === 嘉南藥理科技大學 === 環境工程與科學系暨研究所 === 98 === Membrane distillation (MD) is a relatively new separation process which is being investigated worldwide as a low cost, energy saving alternative to other conventional separation processes. The major aim of this proposal is that the bioethanol produced from fermentation via the membrane distillation system through the expanded polytetrafluoroethylene (ePTFE) membranes. Hopefully, a high flux of MD membrane and ethanol separated from the reaction mixtures can be obtained in this program. We aim to concentrate and purify ethanol through the membranes from simulate fermentation system, and establish a continuous MD system for separate and purify bioethanol from fermentor.
Moreover in the energy conservation, this research discusses the effect of little temperature difference. In addition, the effects of temperature and pressure gradient of the MD system and the air-gap distance on the ethanol purify performance will be investigated.
Keywords: ePTFE, Membrane distillation, fermentation.
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