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An isothermal reversible reaction (A + B) is carried out in a liquid solution. The reaction is first order in both directions. The forward rate constant is ki (h¹), the backward rate constant is k-1 (h¹¹), the equilibrium constant is 1. The inlet molar flow rate to the plant is FAO (mol/h) and enters at rate vo (m³/h). The reactor is a stirred tank of volume V m³. The exit stream then goes to a separator, where one stream of VR (m³/h) with n times (n>1) the concentration of A at the exit of the reactor (CA) is sent back to the CSTR in a continuous operation. The rest of the stream from the separator becomes the system exit (no reaction occurs in the separator). a. Find the system conversion with respect to ki, vo, VR and V, n. b. Compare this conversion with what you will get if there is no recycle.

An isothermal reversible reaction (A + B) is carried out in a liquid solution. The reaction is first order in both directions. The forward rate constant is ki (h¹), the backward rate constant is k-1 (h¹¹), the equilibrium constant is 1. The inlet molar flow rate to the plant is FAO (mol/h) and enters at rate vo (m³/h). The reactor is a stirred tank of volume V m³. The exit stream then goes to a separator, where one stream of VR (m³/h) with n times (n>1) the concentration of A at the exit of the reactor (CA) is sent back to the CSTR in a continuous operation. The rest of the stream from the separator becomes the system exit (no reaction occurs in the separator). a. Find the system conversion with respect to ki, vo, VR and V, n. b. Compare this conversion with what you will get if there is no recycle.

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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An isothermal reversible reaction (AB) is carried out in a liquid solution. The reaction is first order in both directions. The forward rate constant is ki (h¹), the backward rate constant is k-1 (h*¹), the equilibrium constant is 1. The inlet molar flow rate to the plant is FAo (mol/h) and enters at rate vo (m³/h). The reactor is a stirred tank of volume V m³. The exit stream then goes to a separator, where one stream of VR (m³/h) with n times (n>1) the concentration of A at the exit of the reactor (CA) is sent back to the CSTR in a continuous operation. The rest of the stream from the separator becomes the system exit (no reaction occurs in the separator). a. Find the system conversion with respect to ki, Vo, VR and V, n. b. Compare this conversion with what you will get if there is no recycle.
Transcribed Image Text:An isothermal reversible reaction (AB) is carried out in a liquid solution. The reaction is first order in both directions. The forward rate constant is ki (h¹), the backward rate constant is k-1 (h*¹), the equilibrium constant is 1. The inlet molar flow rate to the plant is FAo (mol/h) and enters at rate vo (m³/h). The reactor is a stirred tank of volume V m³. The exit stream then goes to a separator, where one stream of VR (m³/h) with n times (n>1) the concentration of A at the exit of the reactor (CA) is sent back to the CSTR in a continuous operation. The rest of the stream from the separator becomes the system exit (no reaction occurs in the separator). a. Find the system conversion with respect to ki, Vo, VR and V, n. b. Compare this conversion with what you will get if there is no recycle.
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