The following reaction rate, −rA measured in units of [kmol/hr.m3] is observed at a particular conversion, X: Reaction rate Conversion 78 0.0 106 0.2 120 0.4 70 0.6 The area under this curve is rel
The following reaction rate, −rA measured in units of [kmol/hr.m3] is observed at a particular conversion, X: Reaction rate Conversion 78 0.0 106 0.2 120 0.4 70 0.6 The area under this curve is rel
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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The following reaction rate, −rA measured in units of [kmol/hr.m3] is observed at a particular conversion, X:
Reaction rate | Conversion |
---|---|
78 | 0.0 |
106 | 0.2 |
120 | 0.4 |
70 | 0.6 |
The area under this curve is related to the volume of the plug flow reactor.
- Start from the general mol balance and derive the equation that shows the area is equal to the plug flow reactor's volume; clearly state all assumptions used in your derivation.
- Assuming these assumptions are all met, calculate the plug flow reactor's volume to achieve a 60% conversion given a feed rate of 15 mol.s−1 to the reactor.
- If there is zero conversion at the entry to the PFR and 60% at the exit; what is the conversion halfway along the reactor?
- What is the reaction rate at the entry of the reactor?
- What is the reaction rate at the midpoint?
- What is the reaction rate at the exit?
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Volume of a PFR from the Levenspiel plot
VIEWThe Levenspiel plot for the given kinetic data
VIEW2) The volume of plug flow reactor for 60 % conversion
VIEW3) Conversion at half-way along the reactor
VIEW4) Reaction rate at the entry of the reactor
VIEW5) Reaction rate at the mid=point
VIEW6) Reaction rate at the exit
VIEWStep by step
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