# Effect of Molar Holdup on the Dynamic Response of a Binary Distillation Column

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Consider a distillation column with stages, a partial reboiler, and a total condenser. The column is used to separate an equimolar nonideal mixture of ethanol and water. The feed, a biphasic stream with a quality equal to , enters at stage 8 at a rate equal to . The reboil ratio is constant, equal to . Suppose that the column is subject to a step in the reflux ratio.

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Contributed by: Housam Binous (March 2011)

Open content licensed under CC BY-NC-SA

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Reference

[1] Z. Nasri and H. Binous, "Rigorous Distillation Dynamics Simulations Using a Computer Algebra," *Computer Applications in Engineering Education*, 2009. doi:10.1002/cae.20385.