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An adiabatic membrane separation unit is used to dry

Elementary Principles of Chemical Processes | 3rd Edition | ISBN: 9780471687573 | Authors: Richard M Felder ISBN: 9780471687573 143

Solution for problem 8.26 Chapter 8

Elementary Principles of Chemical Processes | 3rd Edition

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Elementary Principles of Chemical Processes | 3rd Edition | ISBN: 9780471687573 | Authors: Richard M Felder

Elementary Principles of Chemical Processes | 3rd Edition

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Problem 8.26

An adiabatic membrane separation unit is used to dry (remove water vapor from) a gas mixture containing 10.0 mole% HzO(v), 10.0 mole% CO, and the balance CO2, The gas enters the unit at 30C and flows past a semipermeable membrane. Water vapor permeates through the membrane into an air stream. The dried gas leaves the separator at 30C containing 2.0 mole% HzO(v) and the balance CO and CO2 Air enters the separator at 50C with an absolute humidity of 0.002 kg H20/kg dry air and leaves at 48C. Negligible quantities of CO, CO2, Oz, and N2 permeate through the membrane. All gas streams are at approximately 1 atm. (a) Draw and label a flowchart of the process and carry out a degree-of-freedom analysis to verify that you can determine all unknown quantities on the chart. (b) Calculate (i) the ratio of entering air to entering gas (kg humid air/mol gas) and (ii) the relative humidity of the exiting air. (c) List several desirable properties of the membrane. (Think about more than just what it allows and does not allow to permeate.)

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Chapter 2 Structure and Reactivity • Chemical Reactions are governed by 2 factors o Thermodynamics – change in energy that happens in a reaction. Controls how complete the reaction is. o Kinetics – The rate of concentration change for reactants and products. Speed to completion. • Thermodynamically favorable proceeds faster. There are faster reactions but result in less stability. o Thermodynamic Control – y

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Chapter 8, Problem 8.26 is Solved
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Textbook: Elementary Principles of Chemical Processes
Edition: 3
Author: Richard M Felder
ISBN: 9780471687573

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An adiabatic membrane separation unit is used to dry