A continuously operating distillation column is fed 40% ethanol and 60% propanol by weight at a speed of 100 kmol/h with a feed current with an enthalpy value of 8500 kcal/kg. The upper product contains 90% ethanol and the lower product contains 5% ethanol. According to this; a) The ideal number of stages in the case where the backflow rate is 1.8 times the minimum backflow rate, b) Calculate the thermal load of the condenser and boiler. In the liquid phase EtOH (w/w) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 Liquid enthalpy (kcal/kg) 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 EtOH in the vapor phase (w/w) 0.00 0.30 0.46 0.61 0.73 0.80 0.86 0.92 0.96 0.98 1.00 Enthalpy of vapor (kcal/kg) 5952.51 3600
A continuously operating distillation column is fed 40% ethanol and 60% propanol by weight at a speed of 100 kmol/h with a feed current with an enthalpy value of 8500 kcal/kg. The upper product contains 90% ethanol and the lower product contains 5% ethanol. According to this; a) The ideal number of stages in the case where the backflow rate is 1.8 times the minimum backflow rate, b) Calculate the thermal load of the condenser and boiler. In the liquid phase EtOH (w/w) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 Liquid enthalpy (kcal/kg) 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 1400 EtOH in the vapor phase (w/w) 0.00 0.30 0.46 0.61 0.73 0.80 0.86 0.92 0.96 0.98 1.00 Enthalpy of vapor (kcal/kg) 5952.51 3600
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:A continuously operating distillation column is fed 40% ethanol and 60% propanol by weight at a speed
of 100 kmol/h with a feed current with an enthalpy value of 8500 kcal/kg. The upper product contains
90% ethanol and the lower product contains 5% ethanol. According to this;
a) The ideal number of stages in the case where the backflow rate is 1.8 times the minimum backflow
rate,
b) Calculate the thermal load of the condenser and boiler.
In the liquid
phase EtOH
(w/w)
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
Liquid enthalpy
(kcal/kg)
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
1400
EtOH in the vapor
phase (w/w)
0.00
0.30
0.46
0.61
0.73
0.80
0.86
0.92
0.96
0.98
1.00
Enthalpy of
vapor (kcal/kg)
5952.51
3600
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