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Fenske Underwood Gilliland Calculator engineering
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Fenske Underwood Gilliland Calculator

Rigorous shortcut distillation column design: Minimum stages (\(N_{\min}\)), minimum reflux ratio (\(R_{\min}\)), actual theoretical stages (\(N\)), and optimum feed tray (\(N_F\)).

Distillation Feed & Separation Specifications

Volatility of light key vs heavy key
Economic optimum usually 1.15 - 1.30

Shortcut Column Design Results

Min Theoretical Stages (N_min)
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Fenske equation
Min Reflux Ratio (R_min)
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Underwood equation
Actual Reflux (R)
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Theoretical (N)
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Actual Trays
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Feed Stage (Kirkbride)
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Distillate / Bottoms Flow
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Column Fractionation Architecture
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