Answered: 0.9 F 0.8 - 0.7 F 1* - 0.365 y* - 0.635…

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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Question

Separation of Propylene–Propane by Adsorption.
Propylene (A) and propane (P) are separated by preferential adsorption on porous silica gel (S) at 25^oC and 101 kPa. Two millimoles of a gas of 50 mol% P and 50 mol% A are equilibrated with silica gel at 25^oC and 101 kPa. Measurements show that 1 mmol of gas is adsorbed. If the data of Figure 4.29 apply, what is the mole fraction of propane in the equilibrium gas and in the adsorbate, and how many grams of silica gel are used?

0.9 F
0.8 -
0.7 F
1* - 0.365
y* - 0.635
0.6
0.5
S, g solld
x* - PILP
+A)
0.4
W-P+A-1 mmol
S, g solld
0.3
Stage
Gas out
Gas in
F-LA + P)
- 2 mmol
Zp- PI (A + P) - 0.5
G-U+ P)
-1 mmol
y* - PI (P + A)
0.2
0.1
0.1
0.2 0.3 0.4
О.Б 0.6
0.7 0.9
0.9 1.0
Mole fraction propane in adsorbate, x
(a)
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
0.1
0.2 0.3
0.4 0.5 0.6
0.7
0.9
0.9
1.0
Mole fraction propane in adsorbate, y. x
(ь)
Mole fraction propane in gas. y
mmole adsorbatelg adsorbent
Equlibtum

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