Pervaporation
Pervaporation
What is Pervaporation (PV) process?
Pervaporation (PV) is a separation process that consist of two phenomena: permeation and evaporation.
PV Membranes are able to separate certain components that are low in concentration from its fluid mixtures.
How Pervaporation Works?
Pervaporation (PV) is a separation process that consist of two phenomena: permeation and evaporation.
PV Membranes are able to separate certain components that are low in concentration from its fluid mixtures.
![](https://petrosep.com/wp-content/uploads/2022/04/Pervarpoation-Process.webp)
![](https://petrosep.com/wp-content/uploads/2022/04/Pervaporation-Membrane.webp)
What are the applications of Pervaporation Membranes?
Solvents Dehydration
PV Membrane System dehydrates azeotropic solvent mixtures and separates pure solvents at high purity and far beyond the azeotropic point.
AZEO-SEP® is PV hydrophilic non-porous membrane suits solvent dehydration applications and available in sheets or hollow fiber.
Solvents Recovery
PV Membranes System recovers solvents, volatile organic compounds /VOCs, from aqueous streams before it is disposed in the waste effluent drainage.
VOC-SEP® is PV hydrophobic non-porous membrane suits solvents recovery applications and available in sheets or hollow fiber.
Are there other alternative technologies?
Distillation:
-
- Conventional Distillation Column (Cannot break azeotropes).
- Extractive Distillation Columns (Multistage columns and uses entrainer).
- Pressure Swing Distillation Columns (Multistage columns at different pressures).
- Limitation
- High energy consumption
- High Capital Cost
- Large footprint
Adsorption:
- Molecular Sieves.
- Limitation
- Feed process stream shall be in superheated vapor form
- Needs multiple beds for continuous operation
- High energy consumption during regeneration process
- Large footprint
![Pervaporation](https://petrosep.com/wp-content/uploads/2022/04/Pervaporation.jpg)
Learn more about how pervaporation works
“Learn more and download the PDF.”
![](https://petrosep.com/wp-content/uploads/2022/03/Pervaporation-Membranes-150x150.jpg)
Pervaporation
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