БО0,000 400,000 FAo (m - TA 300,000 200,000 100,000 0.3 0.6 0.9
The adiabatic exothermic irreversible gas-phase reaction2A+B ⎯⎯→ 2 C
is to be carried out in a flow reactor for an equimolar feed of A and B. A Levenspiel plot for this reaction
is shown in Figure P2-7B.
(a)What PFR volume is necessary to achieve 50% conversion?
(b)What CSTR volume is necessary to achieve 50% conversion?
(c)What is the volume of a second CSTR added in series to the first CSTR(Part b)necessary toachieve an overall conversion of 80%? (Ans.:VCSTR= 1.5×105m3)
(d)What PFR volume must be added to the first CSTR(Part b)to raise the conversion to 80%?
(e)What conversion can be achieved in a 6×104m3CSTR? In a 6×104m3PFR?
(f)Think critically (cf. Preface, Section I, page xxviii) to critique the answers (numbers) to this problem.
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