| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dehydration method and a dehydration system for an alcohol-containing aqueous solution, which improve throughput per unit time and improve energy efficiency without discharging carbon dioxide. <P>SOLUTION: The dehydration method of an alcohol-containing aqueous solution includes: a first step of evaporating an alcohol-containing aqueous solution and obtaining its steam, by heat generated at the time of operating a fuel cell; a second step of obtaining a process liquid raised in an alcohol concentration by separating water component and a process liquid lowered in an alcohol concentration by separating alcohol component, by supplying the steam to a film capable of separating the steam to an alcohol component and a water component; and a third step of reusing hydrogen and oxygen formed by base electrolysis which is carried out to the process liquid lowered in an alcohol concentration by electricity generated at the time of operating the fuel cell, as fuel gas and oxidation gas of the fuel cell, respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT |
