Absolute (100%) ethanol is produced from 95% ethanol and 5% water using the Keyes distillation process. Another component, benzene, is added to lower the instability of the alcohol. With these conditions, the product from the top of the distiller is a constant-boiling mixture of 18.5% ethanol, 7.4% H₂O, and 74.1% benzene, as shown here: 95% ethanol 5% water Benzene Distillation tower P(absolute ethanol) = 0.785 g/cm³ P(benzene) = 0.872 g/cm³ 74.1% benzene 18.5% ethanol 7.4% water 100% ethanol Calculate the volume of benzene that should be fed to the still to produce 250 L of absolute ethanol, using this data:
Absolute (100%) ethanol is produced from 95% ethanol and 5% water using the Keyes distillation process. Another component, benzene, is added to lower the instability of the alcohol. With these conditions, the product from the top of the distiller is a constant-boiling mixture of 18.5% ethanol, 7.4% H₂O, and 74.1% benzene, as shown here: 95% ethanol 5% water Benzene Distillation tower P(absolute ethanol) = 0.785 g/cm³ P(benzene) = 0.872 g/cm³ 74.1% benzene 18.5% ethanol 7.4% water 100% ethanol Calculate the volume of benzene that should be fed to the still to produce 250 L of absolute ethanol, using this data:
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:Absolute (100%) ethanol is produced from 95% ethanol and 5% water using the Keyes
distillation process. Another component, benzene, is added to lower the instability of the
alcohol. With these conditions, the product from the top of the distiller is a constant-boiling
mixture of 18.5% ethanol, 7.4% H₂O, and 74.1% benzene, as shown here:
95% ethanol
5% water
Benzene
Distillation
tower
P(absolute ethanol) = 0.785 g/cm³
P(benzene) = 0.872 g/cm³
74.1% benzene
18.5% ethanol
7.4% water
100% ethanol
Calculate the volume of benzene that should be fed to the still to produce 250 L of absolute
ethanol, using this data:
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