Elementary Principles 44 - 4.5 (cont'd) b. Overall...

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4- 3 4.5 (cont’d) b. Overall objective : To produce C 3 H 6 from C 3 H 8 . Preheater function : Raise temperature of the reactants to raise the reaction rate. Reactor function : Convert C 3 H 8 to C 3 H 6 . Absorption tower function : Separate the C 3 H 8 and C 3 H 6 in the reactor effluent from the other components. Stripping tower function : Recover the C 3 H 8 and C 3 H 6 from the solvent. Distillation column function : Separate the C 3 H 5 from the C 3 H 8 . 4.6 a. 3 independent balances (one for each species) b. 7 unknowns ( ± , ± , ± ,,,, mmmx y y z 1352244 ) – 3 balances – 2 mole fraction summations 2 unknowns must be specified c. yx 22 1 =− A Balance : 5300 1200 070 23 xm kgA h h F H G I K J =+ F H G I K J ± . bg b g Overall Balance : ±± ± mm m 13 5 5300 1200 + F H G I K J + F H G I K J kg h kg h B Balance : 003 5300 1200 060
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This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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