What is the maximum number of independent balances that may be written around each subsystem? Seperator, Distillation column, mixing point, overall process ?
What is the maximum number of independent balances that may be written around each subsystem? Seperator, Distillation column, mixing point, overall process ?
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
Related questions
Question
Consider the multi‑unit process shown. Dashed lines are shown around different subsystems around which balances can be performed. Known flow rates and mole fractions are given.
What is the maximum number of independent balances that may be written around each subsystem?
Seperator, Distillation column, mixing point, overall process ?

Transcribed Image Text:ǹ₁ mol/min
x, mol A/mol
(1 − x₁) mol B/mol
Separator
1
I
|
I
in, mol/min
¦ x₂ mol A/mol
(1 − x₂) mol B/mol
B mol B/min
n₂ mol C/min
1 nmol/min
X₁
x, mol A/mol
4
y mol B/mol
(1 - x - y₂) mol C/mol
4
I
Distillation
column
ń mol/min
6
x mol A/mol
6
y mol C/mol
ǹ² mol/min
x mol A/mol
y, mol B/mol
mol C/mol
25
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