초록 |
Interests on the bioethanol have increased as one of the biorefinery chemicals as well as the alternatives to fossil fuels. One of the principal separation problems in the biorefineries is to recover very high yield and concentration of ethanol from yeast-based fermentation broths containing ethanol in the range of 5~10%. Until now, distillation is widely used to recover alcohol from solutions, but it not an economical process due to high energy consuming process. Among various bioethanol separation processes, pervaporation, a liquid separation process using a membrane as a separating barrier, is considered one of the most promising approaches. The manuscript discusses the current status and perspectives of pervaporation membrane process for bioethanol. |