The first-order, irreversible, exothermic liquid-phase reaction A→Bis to be carried out in a jacketed CSTR. Species A and an inert I are fed to the reactor in equimolar amounts. The molar feed rate of A is 80 mol/min.Additional informationHeat capacity of the inert: 30 cal/mol.oC τ=100 minHeat capacity of A and B: 20 cal/mol.oC ∆HoRX=7500 cal/molUA: 8000 cal/min.oC k=6.6x10-3min-1at 350 KAmbient temperature,Ta: 300K E=40,000 cal/mol.K(a)What is the reactor temperature for a feed temperature of 450 K?(b)Plot and then analyze the reactor temperature as a function of the feed temperature.(c)To what inlet temperature must the fluid be preheated for the reactor to operate at a high conversion?What are the corresponding temperature and conversion of the fluid in the CSTR at this inlet temperature?(d)Suppose that the fluid inlet temperature is now heated 5oC above the reactor temperature in part(c)and then cooled 20oC, where it remains. What will be the conversion?(e)What is the inlet extinction temperature for this reaction system?
The first-order, irreversible, exothermic liquid-phase reaction
A→B
is to be carried out in a jacketed CSTR. Species A and an inert I are fed to the reactor in equimolar amounts. The molar feed rate of A is 80 mol/min.
Additional information
Heat capacity of the inert: 30 cal/mol.oC τ=100 min
Heat capacity of A and B: 20 cal/mol.oC ∆HoRX=7500 cal/mol
UA: 8000 cal/min.oC k=6.6x10-3min-1at 350 K
Ambient temperature,Ta: 300K E=40,000 cal/mol.K
(a)What is the reactor temperature for a feed temperature of 450 K?
(b)Plot and then analyze the reactor temperature as a function of the feed temperature.
(c)To what inlet temperature must the fluid be preheated for the reactor to operate at a high conversion?
What are the corresponding temperature and conversion of the fluid in the CSTR at this inlet temperature?
(d)Suppose that the fluid inlet temperature is now heated 5oC above the reactor temperature in part(c)and then cooled 20oC, where it remains. What will be the conversion?
(e)What is the inlet extinction temperature for this reaction system?
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