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: McGraw-Hill Education
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The reversible liquid phase reaction is carried out in a 12-dm3 CSTR with heat exchange. Both the entering temperature,T0, and the heat exchange fluid,Ta, are at 330 K. An equal molar mixture of inerts and A enter the reactor.
(a)Choose a temperature,T, and carry out a calculation to findG(T) to show that your calculation agrees with the corresponding G(T) value on the curve shown below at the temperature you choose.
(b)Find the exit conversion and temperature from the CSTR.X=_____T=_____.
(c)What entering temperatureT0would give you the maximum conversion?
T0= _____ X = _____
(d)What would the exit conversion and temperature be if the heat exchange system failed (i.e., U = 0)?
(e)Can you find the inlet ignition and extinction temperatures? If yes, what are they? If not, go on to the next problem.
(f)Use Preface Section I to ask another question.
Additional information
TheG(T) curve for this reaction is shown below
CPA = CPB = 100 cal mol K, C PI = 150 c al mol k = 0.001 h −1 at 300K with E = 30,000cal/mol
FA0 =10 mol h, CA0 = 1 mol dm 3 , v0 = 10 dm3/ h KC = 5,000,000 at 300 K
ΔHRx = −42,000 cal mol UA = 5000 cal/h/K
Transcribed Image Text:AZB
Transcribed Image Text:40500
36000
31500
27000
22500
18000
13500
9000
4500
290
305
320
335
350
365
380
395
410
425
440
T (K)
G(T), cavmol
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