The dehydration butanol of alumina is carried out over a silica-alumina catalyst at 680K. CH3CH2CH2CH20H------->cat CH3CH=CHCH3...
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The dehydration butanol of alumina is carried out over a silica-alumina catalyst at 680K. CH3CH2CH2CH20H------->cat CH3CH=CHCH3 + H2O The rate law is -r Bu = KPBU/(1+KBuPBul with k= 0.054 mol/gcat*h*atm and KBu=0.32 atm1. Pure butanol enters a thin-tubed, packed-bed reactor at a molar flow rate of 50 Kmol/hr and a pressure of 10 atm (1013kPa). (a) What PBR catalyst weight is necessary to acheive 80% conversion in the absence of pressure drop? Plot and analyze X, p, f (i.e., (v/vo) and reaction rate, -r A, as a function of catalyst weight. (b) What "fluidized CSTR" catalyst weight is necessary to acheive 80% conversion? (C) Repeat (a) when there is pressure drop, with the pressure-drop parameter a = 0.0006 Kg1. Do you observe a maximum in the rate of reaction, and if so, why? What catalyst weight is necessary to acheive 70% conversion? Compare this weight with that for no pressure drop to acheive the same conversion. The dehydration butanol of alumina is carried out over a silica-alumina catalyst at 680K. CH3CH2CH2CH20H------->cat CH3CH=CHCH3 + H2O The rate law is -r Bu = KPBU/(1+KBuPBul with k= 0.054 mol/gcat*h*atm and KBu=0.32 atm1. Pure butanol enters a thin-tubed, packed-bed reactor at a molar flow rate of 50 Kmol/hr and a pressure of 10 atm (1013kPa). (a) What PBR catalyst weight is necessary to acheive 80% conversion in the absence of pressure drop? Plot and analyze X, p, f (i.e., (v/vo) and reaction rate, -r A, as a function of catalyst weight. (b) What "fluidized CSTR" catalyst weight is necessary to acheive 80% conversion? (C) Repeat (a) when there is pressure drop, with the pressure-drop parameter a = 0.0006 Kg1. Do you observe a maximum in the rate of reaction, and if so, why? What catalyst weight is necessary to acheive 70% conversion? Compare this weight with that for no pressure drop to acheive the same conversion.
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