Reactive Batch Rectification for Quaternary Mixture

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Consider an ideal quaternary mixture subject to an equilibrium-limited chemical reaction . The relative volatilities are taken as
,
,
, and
. The products
and
appear as the highest and lowest boiling point components of this quaternary mixture. An equimolar mixture of
and
is initially fed to a reactive rectifier. For simplicity, assume that the reaction takes place only in the still. This Demonstration plots the distillate and still compositions versus time for user-set values of the Damköhler number
(see parameter
, which varies between 0 and 1, the reflux ratio
, the equilibrium constant
(used in the rate expression as follows:
), and the number of nonreactive stages in the rectifier
. Compositions of components
,
,
, and
are plotted in red, blue, green, and magenta, respectively.
Contributed by: Housam Binous, Mamdouh Al-Harthi, and Ahmed Bellagi (December 2015)
Open content licensed under CC BY-NC-SA
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