ETHANOL FERMENTATION AND CONCENTRATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a concentration system capable of continuously producing the ethanol of a high concentration. SOLUTION: In the case of using a gate membrane 7 to be opened when the concentration of an ethanol solution is 8% for instance, an ethanol solution supplied to the gate membrane 7 is transmitted through the gate membrane 7 and supplied to a pervaporation membrane 8 when its concentration is≥8%, and it is condensed to have concentration≥80% in the pervaporation membrane 8 and is condensed to have concentration≥99% by a dehydration membrane 5 on a downstream side further. When the concentration of the ethanol solution is less than 8%, it is returned to a fermentor 1 as it is. COPYRIGHT: (C)2006,JPO&NCIPI