Feed flow rates, Ibmol/h На 3,000 CH4 884 С-н. 120 Feed Pemeate Retentate Phase condition Temperature, °F Pressure, psia Enthalpy, Btu/bmol Entropy, Btu/lbmol-K Vapor Vapor Vapor 80 80 80 50 365 8,550 1.520 8,380 4.222 365 8,890 2.742

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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Second-law analysis of membrane separation.
A spiral-wound, nonporous cellulose acetate membrane separator is used to separate a gas containing H2, CH4, and C2H6. The permeate is 95 mol% pure H2 and contains no ethane. The relative split ratio (separation factor, SP) for H2 relative to methane is 47. Using the following data and an infinite surroundings temperature of 80oF, compute the: (a) irreversible production of entropy in Btu/h-R; (b) lost work in Btu/h; and (c) minimum work of separation in Btu/h. Why is it negative? What other method(s) might be used to make the separation? Stream flow rates and properties:

Feed flow rates, Ibmol/h
На
3,000
CH4
884
С-н.
120
Transcribed Image Text:Feed flow rates, Ibmol/h На 3,000 CH4 884 С-н. 120
Feed
Pemeate
Retentate
Phase condition
Temperature, °F
Pressure, psia
Enthalpy, Btu/bmol
Entropy, Btu/lbmol-K
Vapor
Vapor
Vapor
80
80
80
50
365
8,550
1.520
8,380
4.222
365
8,890
2.742
Transcribed Image Text:Feed Pemeate Retentate Phase condition Temperature, °F Pressure, psia Enthalpy, Btu/bmol Entropy, Btu/lbmol-K Vapor Vapor Vapor 80 80 80 50 365 8,550 1.520 8,380 4.222 365 8,890 2.742
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