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In chemical reactions the desired product is often accompanied by the production of a variety of undesired materials, some of higher or lower order. Consider the simplest case with the following reactions with corresponding rate law expressions (r; in units of M/min): R (undesired) A A k₂ A S (desired) TR = 1.0 rs = 2CA T (undesired) TT = C² If the initial concentration of reactant is 2 mol/liter, find the maximum expected concentration of desired product, S, for the following isothermal operations: (a) Mixed flow reactor (i.e. CSTR) (b) Plug flow reactor (c) How would the answers to (a) and (b) change if the desired product is R? (Calculate the maximum concentration for each reactor).

In chemical reactions the desired product is often accompanied by the production of a variety of undesired materials, some of higher or lower order. Consider the simplest case with the following reactions with corresponding rate law expressions (r; in units of M/min): R (undesired) A A k₂ A S (desired) TR = 1.0 rs = 2CA T (undesired) TT = C² If the initial concentration of reactant is 2 mol/liter, find the maximum expected concentration of desired product, S, for the following isothermal operations: (a) Mixed flow reactor (i.e. CSTR) (b) Plug flow reactor (c) How would the answers to (a) and (b) change if the desired product is R? (Calculate the maximum concentration for each reactor).

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
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Problem 3. In chemical reactions the desired product is often accompanied by the production of a variety of undesired materials, some of higher or lower order. Consider the simplest case with the following reactions with corresponding rate law expressions (r; in units of M/min): A K₁ K₂ A- > R (undesired) > S (desired) TR = 1.0 rs = 2CA TT = C2 If the initial concentration of reactant is 2 mol/liter, find the maximum expected concentration of desired product, S, for the following isothermal operations: K3 A T (undesired) (a) Mixed flow reactor (i.e. CSTR) (b) Plug flow reactor (c) How would the answers to (a) and (b) change if the desired product is R? (Calculate the maximum concentration for each reactor).
Transcribed Image Text:Problem 3. In chemical reactions the desired product is often accompanied by the production of a variety of undesired materials, some of higher or lower order. Consider the simplest case with the following reactions with corresponding rate law expressions (r; in units of M/min): A K₁ K₂ A- > R (undesired) > S (desired) TR = 1.0 rs = 2CA TT = C2 If the initial concentration of reactant is 2 mol/liter, find the maximum expected concentration of desired product, S, for the following isothermal operations: K3 A T (undesired) (a) Mixed flow reactor (i.e. CSTR) (b) Plug flow reactor (c) How would the answers to (a) and (b) change if the desired product is R? (Calculate the maximum concentration for each reactor).
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