Elementary Principles 191 - 6.36 b. 300 lbm/h wet product...

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6- 25 6.36 b. Strategy: Overall balance ±± mn 12 & ; Relative saturation y 1; , Gas and liquid equilibrium y 3 Balance over the condenser nn 13 Toluene Balance: Dry Solids Balance: lb / h lb - mole / h m 300 0167 0 0196 9213 300 0833 0 9804 255 0488 1 1 2 ×= × + × × U V W = = R S T . ± . ± . . ± . ± ± . m m n 70% relative saturation of dryer outlet gas : 78 1346.773 (6.95805 ) *O O 65.56 219.693 (150 F=65.56 C)=10 172.47 mmHg CH p + = yP p 1 070 150 = .( F) y p P 1 070 172 47 12 760 01324 == × = . (. ) ( . ) . . * lb - mole T(v) / lb - mole Saturation at condenser outlet: 1346.773 (6.95805 ) O 65.56 219.693 * 3 (90 F=32.22 C)=10 40.90 mmHg 40.90 0.0538 mol T(v)/mol 760 p p y P + = === Condenser Toluene Balance: Condenser N Balance: lb - mole / h lb - mole / h 2 ± .. ± . ± (.) ± ± . ± . n n 1 3 01324 0 488 0 0538 1 01324 1 0 0538 5875 5387 + × ×− = ×−
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