A new process has been proposed to produce gaseous ethylene (C2H4) from gaseous propane (C3H8) at atmospheric pressure by the following reaction: C3H8(g) + 2O2 --> C2H4(g) + CO2(g) + 2H2O(g) The products leave the system at 800 K and the C3H8 enters at 450 K, while O2 enters at 300 K. In the process, an excess of 25% (with respect to the amount indicated in the equation) of C3H8(g), but the overall conversion fraction of C3H8 is only 40%. How much heat is added to or removed from the process per mole of C3H8 fed? Please show any calculations made, include any principles and assumptions used.
A new process has been proposed to produce gaseous ethylene (C2H4) from gaseous propane (C3H8) at atmospheric pressure by the following reaction: C3H8(g) + 2O2 --> C2H4(g) + CO2(g) + 2H2O(g) The products leave the system at 800 K and the C3H8 enters at 450 K, while O2 enters at 300 K. In the process, an excess of 25% (with respect to the amount indicated in the equation) of C3H8(g), but the overall conversion fraction of C3H8 is only 40%. How much heat is added to or removed from the process per mole of C3H8 fed? Please show any calculations made, include any principles and assumptions used.
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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A new process has been proposed to produce gaseous ethylene (C2H4) from gaseous propane (C3H8) at atmospheric pressure by the following reaction:
C3H8(g) + 2O2 --> C2H4(g) + CO2(g) + 2H2O(g)
The products leave the system at 800 K and the C3H8 enters at 450 K, while O2 enters at 300 K. In the process, an excess of 25% (with respect to the amount indicated in the equation) of C3H8(g), but the overall conversion fraction of C3H8 is only 40%.
How much heat is added to or removed from the process per mole of C3H8 fed? Please show any calculations made, include any principles and assumptions used.
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