A countercurrent concentric tube heat exchanger is used to preheat a stream of gaseous O2 from 3 ° C to 65 ° C. This stream will feed a reactor. For heat exchange, a hot benzene stream (110ºC) is used that comes from the bottom of a distillation tower at 45 psig and exits the exchanger at 75ºC. If 1800 kg / h of O2 at 65 ° C are required for normal reactor operation. IF the exchanger is perfectly insulated. Calculate: (a) Benzene required (kg / min) (b) Heat exchanged (kJ / s)
A countercurrent concentric tube heat exchanger is used to preheat a stream of gaseous O2 from 3 ° C to 65 ° C. This stream will feed a reactor. For heat exchange, a hot benzene stream (110ºC) is used that comes from the bottom of a distillation tower at 45 psig and exits the exchanger at 75ºC. If 1800 kg / h of O2 at 65 ° C are required for normal reactor operation. IF the exchanger is perfectly insulated. Calculate: (a) Benzene required (kg / min) (b) Heat exchanged (kJ / s)
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 countercurrent concentric tube heat exchanger is used to preheat a stream of gaseous O2 from 3 ° C to 65 ° C. This stream will feed a reactor. For heat exchange, a hot benzene stream (110ºC) is used that comes from the bottom of a distillation tower at 45 psig and exits the exchanger at 75ºC. If 1800 kg / h of O2 at 65 ° C are required for normal reactor operation. IF the exchanger is perfectly insulated. Calculate:
(a) Benzene required (kg / min)
(b) Heat exchanged (kJ / s)
Transcribed Image Text:Top products
To reactor
Or
T= 65°C
Feed
Benzene, L
75°C
Нeat
Benzene, L
45 psig
110°C
O2
Products
T= 3°C
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