Application of Membrane Pervaporation Process to the Enhanced Separation of Fusel Oils

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A commercial hydrophilic membrane, PERVAP-1001, was applied for the dehydration of natural
fusel oils by membrane pervaporation. The fusel oils dehydrated to di erent levels (1.5 mass %, 5
mass %, and 9 mass % of water) by pervaporation as well as a raw fusel oil were subjected to batch
fractional distillation. During pervaporation, a high selectivity of the investigated membrane toward
water was found. The results of distillation showed that the fractionation of fusel oil containing less
than 5 mass % of water yielded a much better separation of lower alcohols.
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