Vapour permeation
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Pervaporation
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other pressure driven
membrane separations
(micro-, ultrafiltration,..)
Principles and
Applications of
PERVAPORATION
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Pervaporation modes

Pervaporation and vapour permeation are similar membrane-based separation processes whose basic difference lies in the physical state of the feed stream:
The Feed is a liquid for the pervaporation and a vapour for the vapour permeation.

Process Feed Permeate
Pervaporation liquid vapour
Vapour permeation vapour vapour
Gas Permeation gas gas
Reverse Osmosis liquid liquid