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Conditions at the top of a vacuum distillation column for the sep- aration of ethylbenzene from styrene are given below, where the overhead vapor is condensed in an air-cooled condenser to give sub- cooled reflux and distillate. Using the property constants in Example 2.3, estimate the heat-transfer rate (duty) for the condenser in kJ/h, assuming an ideal gas and ideal-gas and liquid solutions. Are these valid assumptions? Overhead Vapor Reflux Distillate Phase condition Vapor Liquid Liquid Temperature, K 331 325 325 Pressure, kPa 6.69 6.40 6.40 Component flow rates, kg/h: Ethylbenzene 77,500 66,960 10,540 Styrene 2,500 2,160 340

Conditions at the top of a vacuum distillation column for the sep- aration of ethylbenzene from styrene are given below, where the overhead vapor is condensed in an air-cooled condenser to give sub- cooled reflux and distillate. Using the property constants in Example 2.3, estimate the heat-transfer rate (duty) for the condenser in kJ/h, assuming an ideal gas and ideal-gas and liquid solutions. Are these valid assumptions? Overhead Vapor Reflux Distillate Phase condition Vapor Liquid Liquid Temperature, K 331 325 325 Pressure, kPa 6.69 6.40 6.40 Component flow rates, kg/h: Ethylbenzene 77,500 66,960 10,540 Styrene 2,500 2,160 340

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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Property Constants for (2-35). (2-38). (2-39) (In all cases. Tis in K) Ethylbenzene Styrene M, kg/kmol C J/kmol-K: 106.168 104.152 -43,098.9 -28,248.3 a¡R 707.151 615.878 a„R -0.481063 -0.40231 a;R 1.30084 x 104 9.93528 x 10-5 aşR Р, Ра: ki 86.5008 130.542 k2 -7,440.61 -9,141.07 ks k4 0.00623121 0.0143369 ks -9.87052 -17.0918 k6 4.13065 x 10-18 1.8375 x 10-18 k7 6 PL. kg/m: A 289.8 299.2 В 0.268 0.264 т. К R= 8.314 kJ/kmol-K or kPa-m/kmol-K = 8,314 J/kmol-K 617.9 617.1 %3D
Transcribed Image Text:Property Constants for (2-35). (2-38). (2-39) (In all cases. Tis in K) Ethylbenzene Styrene M, kg/kmol C J/kmol-K: 106.168 104.152 -43,098.9 -28,248.3 a¡R 707.151 615.878 a„R -0.481063 -0.40231 a;R 1.30084 x 104 9.93528 x 10-5 aşR Р, Ра: ki 86.5008 130.542 k2 -7,440.61 -9,141.07 ks k4 0.00623121 0.0143369 ks -9.87052 -17.0918 k6 4.13065 x 10-18 1.8375 x 10-18 k7 6 PL. kg/m: A 289.8 299.2 В 0.268 0.264 т. К R= 8.314 kJ/kmol-K or kPa-m/kmol-K = 8,314 J/kmol-K 617.9 617.1 %3D
Conditions at the top of a vacuum distillation column for the sep- aration of ethylbenzene from styrene are given below, where the overhead vapor is condensed in an air-cooled condenser to give sub- cooled reflux and distillate. Using the property constants in Example 2.3, estimate the heat-transfer rate (duty) for the condenser in kJ/h, assuming an ideal gas and ideal-gas and liquid solutions. Are these valid assumptions? Overhead Vapor Reflux Distillate Phase condition Vapor Liquid Liquid Temperature, K 331 325 325 Pressure, kPa 6.69 6.40 6.40 Component flow rates, kg/h: Ethylbenzene 77,500 66,960 10,540 Styrene 2,500 2,160 340
Transcribed Image Text:Conditions at the top of a vacuum distillation column for the sep- aration of ethylbenzene from styrene are given below, where the overhead vapor is condensed in an air-cooled condenser to give sub- cooled reflux and distillate. Using the property constants in Example 2.3, estimate the heat-transfer rate (duty) for the condenser in kJ/h, assuming an ideal gas and ideal-gas and liquid solutions. Are these valid assumptions? Overhead Vapor Reflux Distillate Phase condition Vapor Liquid Liquid Temperature, K 331 325 325 Pressure, kPa 6.69 6.40 6.40 Component flow rates, kg/h: Ethylbenzene 77,500 66,960 10,540 Styrene 2,500 2,160 340
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