lecture 2

lecture 2 - Example Problem Find the bubble Point...

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Example Problem Find the bubble Point temperature for a liquid mixture containing 15 M % isopentane, 30% n-pentane, 55% n-hexane at a Pressure of 1 atm.

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x i 0.15 0.3 0.55 °C iC 5 nC 5 nC 6 Σ k i x i (K ref ) new 50 1.9 1.45 0.52 1.006 0.516899
Equation Constants Componena T1 a T2 a T6 a p1 a p2 a p3 iC 5 -1481583 0 7.58071 -0.93159 0 0 nC 5 -1524891 0 7.33129 -0.89143 0 0 nC 6 -1778901 0 6.96783 -0.84634 0 0 Pressure= 14.696 psia Temp= 577.2631 °R 47.55171 °C K i x i K i x i iC 5 1.879301 0.15 0.281895 nC 5 1.432541 0.3 0.429762 nC 6 0.524617 0.55 0.288539 Σ = 1.000197

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Example Problem Propylene is to be separated from isobutene by distillation into a distillate vapor containing 90 M% propylene. Calculate the column operating pressure assuming that the exit temperature from the partial condenser is 100°F (37.8°C), the minimum attainable with cooling water. Determine the composition of the liquid reflux. This is a Dew Point Pressure Calculation.

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Using K values Temp 100 °F Comp Propylene1-butene y i 0.9 0.1
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This note was uploaded on 11/07/2011 for the course CHE 305 taught by Professor Rowell during the Fall '09 term at Drexel.

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lecture 2 - Example Problem Find the bubble Point...

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