Industrial Plastics: Theory and Applications
6th Edition
ISBN: 9781285061238
Author: Lokensgard, Erik
Publisher: Delmar Cengage Learning
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Considering the molar flux as estimated by the Whitman two-film theory, show the relationship between the mass transfer coefficients based on concentration, and mol fraction gradients, kc and ky, respectively, is given by: ky = Ckc, where C is the total concentration. please do not use chatgpt, i did not understand from it that is why i paid for this.
We have a feed that is a binary mixture of methanol and water (55.0 mol% methanol) that is sent to a system of two flash drums hooked together. The vapor from the first drum is cooled, which partially condenses the vapor, and then is fed to the second flash drum. Both drums operate at a pressure of 1.0 atm and are adiabatic. The feed rate to the first drum is 1000.0 kmol/h. We desire a liquid product from the first drum that is 30.0 mol% methanol (x1 = 0.300). The second drum operates at a fraction vaporized of (V/F)2 = 0.250. The equilibrium data are in Table 2-8.
Find the following for the first drum: y1, T1, (V/F)1, and vapor flow rate V1.
Find the following for the second drum: y2, x2, T2, and vapor flow rate V2.
Show that the overall mass transfer coefficient, Ky, can be related to the individual
gas and liquid film mass transfer coefficients, ky and kx, respectively, by the
following equation:
1
K
y
=
1
+
m
kk
y
x
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