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a. What is the composition of stream 3? b. What is the flow rate of stream 4? c. What is the composition of stream 1? d. Given this arrangement of flash drums as well as the ability to change the temperature of each drum, what is the maximum mol % P in stream 2? At what temperature should we operate flash drum 1? e. If stream 2 is maximum mol % P what is the minimum mol % P that can be achieved in stream 5? At what temperature should we operate flash drum 2?

a. What is the composition of stream 3? b. What is the flow rate of stream 4? c. What is the composition of stream 1? d. Given this arrangement of flash drums as well as the ability to change the temperature of each drum, what is the maximum mol % P in stream 2? At what temperature should we operate flash drum 1? e. If stream 2 is maximum mol % P what is the minimum mol % P that can be achieved in stream 5? At what temperature should we operate flash drum 2?

Introduction to Chemical Engineering Thermodynamics
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

D e f 

Phase diagram for P-Q mixtures at 1 atm 90 80 60 50 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Хр, Ур a. What is the composition of stream 3? b. What is the flow rate of stream 4? c. What is the composition of stream 1? d. Given this arrangement of flash drums as well as the ability to change the temperature of each drum, what is the maximum mol % P in stream 2? At what temperature should we operate flash drum 1? e. If stream 2 is maximum mol % P what is the minimum mol % P that can be achieved in stream 5? At what temperature should we operate flash drum 2? f. If stream 2 is minimum mol % P what is the minimum and maximum mol % P that can be achieved in stream 5? temperature (C)
Transcribed Image Text:Phase diagram for P-Q mixtures at 1 atm 90 80 60 50 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Хр, Ур a. What is the composition of stream 3? b. What is the flow rate of stream 4? c. What is the composition of stream 1? d. Given this arrangement of flash drums as well as the ability to change the temperature of each drum, what is the maximum mol % P in stream 2? At what temperature should we operate flash drum 1? e. If stream 2 is maximum mol % P what is the minimum mol % P that can be achieved in stream 5? At what temperature should we operate flash drum 2? f. If stream 2 is minimum mol % P what is the minimum and maximum mol % P that can be achieved in stream 5? temperature (C)
2. A mixture of P and Q is treated in the process shown below. The phase diagram for P-Q mixture is also shown. vapor: 90. mol %P 60. mol/min P-Q mixture flash drum heater cooler < 4 vapor 1 atm 52°C liquid 3 heater flash drum liquid: 14. mol% P 40. mo/min
Transcribed Image Text:2. A mixture of P and Q is treated in the process shown below. The phase diagram for P-Q mixture is also shown. vapor: 90. mol %P 60. mol/min P-Q mixture flash drum heater cooler < 4 vapor 1 atm 52°C liquid 3 heater flash drum liquid: 14. mol% P 40. mo/min
Expert Solution
Material Balance of overall system

F1=F2+F5but F2=60 molminF3= 40 molminF1=100 molminFrom flow diagram yp=0.9                         thus yq=0.1

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