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Pervaporation and Vapor Permeation Membrane Systems for ...

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Pervap Per<strong>for</strong>mance Measures (1 of 2)<br />

• Flux (J) [=] mass/(area • time)<br />

• Separation Factor (β)<br />

• <strong>for</strong> compound 1 relative to compound 2<br />

⎛ y ⎞<br />

⎜<br />

1<br />

y ⎟<br />

β = ⎜<br />

2<br />

⎟ = β<br />

12<br />

⎜ x1<br />

⎟<br />

⎝ x2<br />

⎠<br />

VLE<br />

β<br />

membrane<br />

y = Permeate concentration, x = Feed liquid concentration

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