| 摘要 |
PURPOSE:To efficiently remove a reaction water from a gaseous mixture, which is obtained by vaporizing a liq. mixture consisting of raw material and reaction product, by separating said gaseous mixture with a steam permeable membrane for gas separation and then removing the reaction water in the reaction system. CONSTITUTION:A butanol contg. 15% water and an aq. soln. contg. 30% sodium hydroxide are introduced to a reaction tank 1 through a raw material line A and the reaction tank 1 is indirectly heated at about 120 deg.C with steam through a heat-source line 9 at the same time. Then the gaseous mixture consisting of steam and butanol vapor is blown out through a line B. Said gaseous mixture is fed to a primary side of the gas separating membrane 3 at atmospheric pressure after the temp. of the gaseous mixture is raised to 130 deg.C by a heater 2. A permeated gas mostly consisting of steam, which is permeated to a secondary side of the gas separating membrane 3, is condensed by a cooler 6, is transported to a vacuum tank 7 and discharged to outside the system through a discharge line F.
|
