Elementary Principles 453 - 10.6 n - C 4 H 10 i - C 4 H 10...

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10- 5 10.6 ni n B i B −→ = CH CH 41 0 0 bg (mol n-B) n 1 mixer (mol n-B) n 2 (mol i-B) n 3 reactor (mol n-B) n 4 (mol i-B) n 5 still (mol) n 6 (mol n-B/mol) x 6 (1 – )(mol i-B/mol) x 6 (mol) n r (mol n-B/mol) x r (1 – )(mol i-B/mol) x r a. Mixer: 5 2 123 variables material balances 3 degrees of freedom nnnnx rr ,,,, Reactor: 4 2 1 3 2335 variables material balances reaction degrees of freedom nnnn ,,, + Still: 6 2 4566 variables material balances 4 degrees of freedom nnnxnx ,,,,, Process: 10 6 Local degrees of freedom ties 4 overall degrees of freedom b . nn 1 100 =− mol C H 0 , xn 6 0115 = . mol C H mol 0 , r = 085 . mol C H mol 0 Overall C balance: 100 4 0115 4 0885 4 100 66 b g b g bg b g =+ = . . mol C mol overhead
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