Characteristics of pervaporation technology:
- Energy-efficient: A high separation degree could be achieved in single stage, 1/2~2/3 energy could be saved in comparison with distillation of azeotropy.
- One unit multi-uses: One unit could be used to separate various organic matters.
- No pollution: Harmful entrainers such as benzene, cyclohexane, etc are not needed to add in the separation course, which will not pollute the products and environment.
- Organic compounds could be separated: If there are many organic matters in liquid, the pervaporation membrane separation will not be influenced.
- Easy to magnify and control: The pervaporation membrane separation unit takes membrane unit as modular construction, so the separation course is easy to be controlled, magnified and integrated.
Selectivity and flux of pervaporation membrane:
Application scope of Pervaporation technology:
- Dehydration of alcohol, such as ethanol, isopropanol, butanol, glycol, etc;
- Dehydration of ketone, such as acetone, butanone, etc;
- Dehydration of ether, such as Methyl Tert-butyl Ether, Diethyl propyl ether, etc;
- Removal of trace water in aromatic compounds, such as benzene, toluene, ethylamine, xylene, etc;
- Removal of trace water in organic silicon;
- Removal of trace water in chloro-hydrocarbons, such as monochloro methane, methylene dichloride, etc;
- Removal of trace water in oil solvents, such as hexane, cyclohexane;
- Removal of trace organic matter in water.
