112811-hw8-f011

112811-hw8-f011 - Department of Chemical Engineering...

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Department of Chemical Engineering Fall, 2011 University of California, Santa Barbara 1 CHE 140B Problem Set No. 8 Due Thursday, December 1, 2011 Problem 1: Fogler, 8-5 The endothermic liquid-phase elementary reaction A + B 2C Proceeds, substantially to completion in a single steam-jacketed continuous-stirred reactor (Table P8-5). From the following data, calculate the steady-state reactor temperature: Reactor volume: 125 gal Steam jacket area: 10 ft 2 Jacket steam: 150 psig (365.9 ºF saturation temperature) Overall heat-transfer coefficient of jacket, U : 150 Btu/h ft 2 o F Agitator shaft horsepower: 25 hp Heat of reaction, Rx 20,000 H  Btu/lbmol of A (independent of temperature) Problem 2: Fogler, 8-6(a-c) The elementary irreversible organic liquid-phase reaction. A + B C , is carried out adiabatically in a flow reactor. An equal molar feed in A and B enters at 27 ºC, and the volumetric flow rate is 2 dm 3 /s and C AO = 0.1 kmol/m 3 .
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Department of Chemical Engineering Fall, 2011 University of California, Santa Barbara 2 (a) Calculate the PFR and CSTR volumes necessary to achieve 85% conversion. What are
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112811-hw8-f011 - Department of Chemical Engineering...

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