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5) The isothermal liquid phase reaction 2A→ R with 2nd order kinetics is carried out in a PFR. Considerations for downstream operations require R to be produced at a concentration of 0.45 mol/liter. The PFR was designed for a feed concentration of A of 1 mol/liter. Your supplier indicates that he is now able to supply A at CA0 = 1.2 mol/liter. How do you want to adjust your operation to cater for this new feed? (a) Dilute the new feed to 1 mol/liter and use the increase in the volumetric flow rate to increase the production rate of R (b) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately two fold (c) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately four fold (d) Use the new feed as it is but with product recycle to dilute the feed to CA0 = 1 mol/liter prior to entering the reactor

5) The isothermal liquid phase reaction 2A→ R with 2nd order kinetics is carried out in a PFR. Considerations for downstream operations require R to be produced at a concentration of 0.45 mol/liter. The PFR was designed for a feed concentration of A of 1 mol/liter. Your supplier indicates that he is now able to supply A at CA0 = 1.2 mol/liter. How do you want to adjust your operation to cater for this new feed? (a) Dilute the new feed to 1 mol/liter and use the increase in the volumetric flow rate to increase the production rate of R (b) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately two fold (c) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately four fold (d) Use the new feed as it is but with product recycle to dilute the feed to CA0 = 1 mol/liter prior to entering the 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
Problem 1.1P
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5) The isothermal liquid phase reaction 2A→ R with 2nd order kinetics is carried out in a PFR. Considerations for downstream operations require R to be produced at a concentration of 0.45 mol/liter. The PFR was designed for a feed concentration of A of 1 mol/liter. Your supplier indicates that he is now able to supply A at CA0 = 1.2 mol/liter. How do you want to adjust your operation to cater for this new feed? (a) Dilute the new feed to 1 mol/liter and use the increase in the volumetric flow rate to increase the production rate of R (b) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately two fold (c) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately four fold (d) Use the new feed as it is but with product recycle to dilute the feed to CA0 = 1 mol/liter prior to entering the reactor
Transcribed Image Text:5) The isothermal liquid phase reaction 2A→ R with 2nd order kinetics is carried out in a PFR. Considerations for downstream operations require R to be produced at a concentration of 0.45 mol/liter. The PFR was designed for a feed concentration of A of 1 mol/liter. Your supplier indicates that he is now able to supply A at CA0 = 1.2 mol/liter. How do you want to adjust your operation to cater for this new feed? (a) Dilute the new feed to 1 mol/liter and use the increase in the volumetric flow rate to increase the production rate of R (b) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately two fold (c) Use the new feed as it is and increase the volumetric flow rate through the reactor by approximately four fold (d) Use the new feed as it is but with product recycle to dilute the feed to CA0 = 1 mol/liter prior to entering the reactor
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