
General characteristics of pervaporation:
- Uses semi-permeable membrane
- Permeate leaves membrane in vapor state
- Permeate must be volatile at operating condition
- Functions irrespective of vapor/liquid equlibrium
- Used to purify volatile chemicals
- Permeates water and methanol
- Separates mixtures that form azeotropes
- Replaces traditional separation methods
- Low energy consumption
- No entrainer required, no contamination
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