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The same Client has undertaken kinetic studies corresponding to the hydrolysis of aqueous acetic anhydride (to yield acetic acid) at 40 °C. They have found that this is a first-order, irreversible reaction, with a rate constant of 0.38 min ¹. The Client is interested in scaling-up their acetic anhydride process, and have proposed the following two alternatives (written in red). 2 Notes from Client • A CSTR thermostatted at 40 °C, of 1.8 L volume, with an input stream of aqueous acetic anhydride at a concentration of 0.187 M. • • • o This has actually been tested in our labs - for an entry volume flow rate of 0.5 L min-¹, we observed that 58.3% of the acetic anhydride was converted. A plug-flow reactor thermostatted at 40 °C, of the same volume as the CSTR, with the same volume flow rate. Notes from Team Leader How do the Client's experimental results with the CSTR compare with their batch reactor findings? In terms of productivity, which of the two options do you recommend? If the two alternatives were to have the same conversion, how would the flow rates differ? Does this change your recommendation?

The same Client has undertaken kinetic studies corresponding to the hydrolysis of aqueous acetic anhydride (to yield acetic acid) at 40 °C. They have found that this is a first-order, irreversible reaction, with a rate constant of 0.38 min ¹. The Client is interested in scaling-up their acetic anhydride process, and have proposed the following two alternatives (written in red). 2 Notes from Client • A CSTR thermostatted at 40 °C, of 1.8 L volume, with an input stream of aqueous acetic anhydride at a concentration of 0.187 M. • • • o This has actually been tested in our labs - for an entry volume flow rate of 0.5 L min-¹, we observed that 58.3% of the acetic anhydride was converted. A plug-flow reactor thermostatted at 40 °C, of the same volume as the CSTR, with the same volume flow rate. Notes from Team Leader How do the Client's experimental results with the CSTR compare with their batch reactor findings? In terms of productivity, which of the two options do you recommend? If the two alternatives were to have the same conversion, how would the flow rates differ? Does this change your recommendation?

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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processing? Activity 2: Which reactor is best for batch-to-continuous The same Client has undertaken kinetic studies corresponding to the hydrolysis of aqueous acetic anhydride (to yield acetic acid) at 40 °C. They have found that this is a first-order, irreversible reaction, with a rate constant of 0.38 min ¹. The Client is interested in scaling-up their acetic anhydride process, and have proposed the following two alternatives (written in red). 2 Notes from Client • A CSTR thermostatted at 40 °C, of 1.8 L volume, with an input stream of aqueous acetic anhydride at a concentration of 0.187 M. o This has actually been tested in our labs - for an entry volume flow rate of 0.5 L min-¹, we observed that 58.3% of the acetic anhydride was converted. A plug-flow reactor thermostatted at 40 °C, of the same volume as the CSTR, with the same volume flow rate. Notes from Team Leader • How do the Client's experimental results with the CSTR compare with their batch reactor findings? In terms of productivity, which of the two options do you recommend? • If the two alternatives were to have the same conversion, how would the flow rates differ? Does this change your recommendation?
Transcribed Image Text:processing? Activity 2: Which reactor is best for batch-to-continuous The same Client has undertaken kinetic studies corresponding to the hydrolysis of aqueous acetic anhydride (to yield acetic acid) at 40 °C. They have found that this is a first-order, irreversible reaction, with a rate constant of 0.38 min ¹. The Client is interested in scaling-up their acetic anhydride process, and have proposed the following two alternatives (written in red). 2 Notes from Client • A CSTR thermostatted at 40 °C, of 1.8 L volume, with an input stream of aqueous acetic anhydride at a concentration of 0.187 M. o This has actually been tested in our labs - for an entry volume flow rate of 0.5 L min-¹, we observed that 58.3% of the acetic anhydride was converted. A plug-flow reactor thermostatted at 40 °C, of the same volume as the CSTR, with the same volume flow rate. Notes from Team Leader • How do the Client's experimental results with the CSTR compare with their batch reactor findings? In terms of productivity, which of the two options do you recommend? • If the two alternatives were to have the same conversion, how would the flow rates differ? Does this change your recommendation?
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