Abstract
In some pervaporation systems coupling between flows may play an important role. Specifically, this appears to apply to the pervaporation of water and alcohol through ion-exchange membranes. Transport equations including a mutual drag coefficient are discussed and a procedure for the measurement of this coefficient is described. It is shown that a concave concentration profile for the less permeable species is a consequence of coupling. It may explain the close agreement between pervaporation selectivity and sorption selectivity in a range of concentrations observed in ion-exchange membranes.
| Original language | English |
|---|---|
| Pages | 111-120 |
| Number of pages | 10 |
| State | Published - 1 Dec 1986 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Engineering
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