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一、引言 渗透汽化(Pervaparation)作为一项分离混合液体的膜技术,近年来获得了迅速发展。其基本过程是:分离膜的一侧与原料混合液接触,另一侧抽真空或用干燥气流吹扫。料液中的一个组分在膜中优先溶解,经扩散后在膜的低压侧汽化脱除,从而实现分离。该技术特别适用
I. INTRODUCTION Pervaporation has been rapidly developed in recent years as a membrane technology for separating mixed liquids. The basic process is: one side of the separation membrane in contact with the raw material mixture, the other side of the vacuum or purge with a dry gas stream. One of the components in the feed solution is preferentially dissolved in the membrane and is vaporized and removed on the low pressure side of the membrane after being diffused to achieve separation. This technique is especially suitable