Elementary Principles 208 - 6.60 (cont'd) a. Molar flow...

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6- 42 6.60 (cont’d) a. Molar flow rate of feed: n n 195 kmol / h 00 ± (. ) ± 045 095 85 098 = = Total mole balance : n n 110 kmol / h 22 195 850 = + = . ±± Pentane balance: 195 x x 0.0405 mol P / mol 2 .(. ) 045 850 098 110 2 = + = b. Dew point of column overhead vapor effluent : 1a 1a o 1 6.84471 1060.793/( 231.541) 6.88555 1175.817/( 224.687) Eq. 6.4-7, Antoine equation 0.98(760) 0.02(760) 1 37.3 C 10 10 a TT T −+ ⇒+ = = Flow rate of column overhead vapor effluent . Assuming ideal gas behavior, ± V vapor 3 3 kmol 0.08206 m atm (273.2 + 37.3) K h kmol K 1 atm /h = = 170 4330 m Flow rate of liquid distillate product . Table B.1 ρ PH = 0.621 g / mL, = 0.659 g / mL ± .() . . V distillate kmol P h kg P kmol P L 0.621 kg P + kmol H h kmol H L 0.659 kg H L/h = 098 85 7215 002 85 86.17 kg H 99 10 3 c. Reboiler temperature . 2 2 6.88555 1175.817/( 224.867)
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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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