Distilasi
6
Komponen feed komponen destilat komponen propane 100 100% 0% i-butane 300 100% 0% n-butane 300 95% 5% i-pentane 100 1% 99% n-pentane 100 0% 100% total 900 tekanan 138 psia temperatur boiling point Komponen mol feed xi 75 152 ki xiki ki xiki propane 100 0.111111 1 0.111111111 2.29 0.254444 i-butane 300 0.333333 0.44 0.146666667 1.15 0.506 n-butane 300 0.333333 0.29 0.096666667 0.82 0.2378 i-pentane 100 0.111111 0.12 0.013333333 0.4 0.048 n-pentane 100 0.111111 0.092 0.010222222 0.32 0.02944 total 900 1 0.378 4.98 1.075684 Menghitung Dew Point Komponen mol feed D XD 152 1 ki XD/ki ki propane 100 100 0.145773 2.29 0.0636561549136 2.15 i-butane 300 300 0.437318 1.15 0.3802763341361 1.09 n-butane 300 285 0.415452 0.82 0.5066486524924 0.78 i-pentane 100 1 0.001458 0.4 0.0036443148688 0.38 n-pentane 100 0 0 0.32 0 0.3 total 900 686 1 0.9542254564109 4.7 Menghitung bubble Point Komponen mol feed B XB 152 1 ki xbki ki propane 100 0 0 2.29 0 2.9 i-butane 300 0 0 1.15 0 1.49 n-butane 300 15 0.070093 0.82 0.057476635514 1.1 i-pentane 100 99 0.462617 0.4 0.185046728972 0.53 n-pentane 100 100 0.46729 0.32 0.1495327102804 0.47 900 214 1 0.3920560747664 75 °F
description
perpindahan massa
Transcript of Distilasi
Komponen feed komponen destilat komponen bottompropane 100 100% 0%i-butane 300 100% 0%n-butane 300 95% 5%i-pentane 100 1% 99%n-pentane 100 0% 100%total 900
tekanan 138 psiatemperatur
boiling point
Komponen mol feed xi75 152
ki xiki ki xikipropane 100 0.111111 1 0.111111111 2.29 0.254444i-butane 300 0.333333 0.44 0.146666667 1.15 0.506n-butane 300 0.333333 0.29 0.096666667 0.82 0.2378i-pentane 100 0.111111 0.12 0.013333333 0.4 0.048n-pentane 100 0.111111 0.092 0.010222222 0.32 0.02944total 900 1 0.378 4.98 1.075684
Menghitung Dew Point
Komponen mol feed D XD152 146
ki XD/ki ki XD/kipropane 100 100 0.145773 2.29 0.0636561549136 2.15 0.067801207i-butane 300 300 0.437318 1.15 0.3802763341361 1.09 0.401208976n-butane 300 285 0.415452 0.82 0.5066486524924 0.78 0.532630635i-pentane 100 1 0.001458 0.4 0.0036443148688 0.38 0.003836121n-pentane 100 0 0 0.32 0 0.3 0total 900 686 1 0.9542254564109 4.7 1.005476939
Menghitung bubble Point
Komponen mol feed B XB152 180
ki xbki ki xbkipropane 100 0 0 2.29 0 2.9 0i-butane 300 0 0 1.15 0 1.49 0n-butane 300 15 0.070093 0.82 0.057476635514 1.1 0.077102804i-pentane 100 99 0.462617 0.4 0.185046728972 0.53 0.245186916n-pentane 100 100 0.46729 0.32 0.1495327102804 0.47 0.219626168
900 214 1 0.3920560747664 0.541915888
75 °F
jumlah stage
Komponen k a
a rata rataatas tengah bawah atas tengah bawahpropane 2.15 2.29 4.2 5.657894737 5.725 4.2 5.143118707i-butane 1.09 1.15 2.4 2.868421053 2.875 2.4 2.70497962n-butane 0.78 0.82 1.8 2.052631579 2.05 1.8 1.963868741i-pentane 0.38 0.4 1 1 1 1 1n-pentane 0.3 0.32 0.9 0.789473684 0.8 0.9 0.828368136
Nm 5.57909 xLK,D 0.4154518950437xHK,D 0.0014577259475xLK,B 0.0700934579439xHK,B 0.4626168224299
5. Cek komposisi di Bottom dan distillate
Komponen mol feed D Asumsi B Asumsi a rata rata αiNM(nHD/nHW)D B
Calc Calcpropane 100 100 0 5.143118707 93.834399469962 98.94553 1.054469692i-butane 300 300 0 2.70497962 2.6028362967586 216.7323 83.26773n-butane 300 285 15 1.963868741 0.4361799816345 91.11253 208.887468i-pentane 100 1 99 1 0.010101010101 1 99n-pentane 100 0 100 0.828368136 0.0035328538313 0.352042 99.64795833
6. Refluks Minimum (Rm)
Komponen xi mol feed
D B
xd xb
θCalc Calc a rata rata
propane 0.111111 100 98.94553 1.054469692 0.2424289576973 0.002144 5.143118707i-butane 0.333333 300 216.7323 83.26773 0.5310212411964 0.169292 2.70497962n-butane 0.333333 300 91.11253 208.887468 0.2232371294563 0.424691 1.963868741i-pentane 0.111111 100 1 99 0.0024501254068 0.201278 1n-pentane 0.111111 100 0.352042 99.64795833 0.0008625462433 0.202595 0.828368136
408.1424 491.8576261 1 1 11.6403352
Rm+1 4.458133Rm 3.458133
jumlah stage
Rm 3.458133R 34.58133
Ѱ 0.874706Nm 5.57909
N-Nm/N+1 0.055725N 5.967343
8. Letak feed plate
Xf,HK 0.111111Xf,LK 0.333333XB,LK 0.070093XD,HK 0.001458B 491.8576D 408.1424
Log Nr/ Ns 0.611389Nr/Ns 4.086857
N=Nr+Ns
Nr 4.794252 letak feed plate
Ns 1.17309
240ki Xbki
4.2 02.4 01.8 0.126168
1 0.4626170.9 0.420561
1.009346
4.4581328542
0.8342619517-0.5143075093-0.2624513218-0.0321303767-0.02535726451.5479492E-05
αiXi,f/(αi-θ)
