ven1401013 - VEN 140 -Spring 2010 Distilled Beverage...

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1 VEN 140 -Spring 2010 Distilled Beverage Technology Multi-component Multistage Distillation Roger Boulton 3154 RMI North rbboulton@ucdavis.edu Outline • McCabe-Thiele Example • Reflux Ratio vs Number of Stages • Multi-component Multistage Column – Ethanol, Water Profiles – Trace Volatile Profiles • Some Column Arrangements – Sidedraw • Performance Characteristics
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2 McCabe-Thiele Example Feed at 0.15 mole fraction Ethanol, Distillate at 0.78 mole fraction 95% of Ethanol recovered from Feed Hot feed above its bubble point q = 0.9 Reflux ratio, R = (L/D) of 3 L/V = R/(R+1)= ¾ = 0.75 How Many Stages? Mark xD, xF, xB L/V slope, q line Slope
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3 Multi-component, Multistage Column Ethanol, Water Profiles
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4 Water and Ethanol Molar Content by Stage 26 Stages, Products from stage 22, Feed at stage 6 0 0.2 0.4 0.6 0.8 1 1.2 1 3 5 7 9 11 13 15 17 19 21 23 25 Stage Number Mole Fraction Water Ethanol Feed Stage Product Stage Distribution of Proof by Stage
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ven1401013 - VEN 140 -Spring 2010 Distilled Beverage...

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