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Sheet1

BUTANE-PENTANE SPLITTER

Component Feed (f) Tops (d) Bottom (b)Propane, C3 5 5 0I-Butane, iC4 15 15 0N-Butane, nC4 25 24 1I-Pentane, iC5 20 1 19N-Pentane, nC5 35 0 35

100 45 55 kmol

Reflux ration 2.5

Mencari relative volatility rata-rata pada T operasi

T operasi pada condenser adalah suhu dew point = 65 CT operasi pada reboiler adalah suhu bubble point = 120 C

α top α bottom α averageTemperatur C 65 120 92.5C3 5.5 4.5 5.0iC4 2.7 2.5 2.6nC4 (LK) 2.1 2.0 2iC5 (HK) 1.0 1.0 1.0nC5 0.84 0.85 0.845

Perhitungan untuk non-key flow

αi di li=di/(αi-1) vi=li+diC3 5 5.0 1.3 6.3iC4 2.6 15.0 9.4 24.4

Σ 10.6 30.6

αi bi l'i=v'i+binC5 0.845 35.0 25.6 60.6

Σ 25.6 60.6

Perhitungan flow kombinasi

Le 101.875 kmolVe 126.875 kmolV'e 131.8939394 kmolL'e 151.8939394 kmol

slope operasi atasLe/Ve 0.802955665

v'i=αibi/(αLK

-αi)

Sheet1

slope operasi bawahLe'/Ve' 1.15163699

komposisixf 0.555555556xd 0.96xb 0.05

α 2garis kesetimbangan y=αx/(1+(α-1)x)

y=2x/(1+x)

αi fi di/bi di biC3 5 5 40000 5.00 0.00iC4 2.6 15 150 14.90 0.10nC4 (LK) 2 25 21 23.86 1.14iC5 (HK) 1 20 0.053 1.01 18.99nC5 0.845 35 0.011 0.38 34.62

αi fi di biC3 5 5 5.0 0.0iC4 2.6 15 14.9 0.1nC4 (LK) 2 25 23.9 1.1iC5 (HK) 1 20 1.0 19.0nC5 0.845 35 0.4 34.6

100 45.2 54.8

Nm 8.630181253

0 0.2 0.4 0.6 0.8 1 1.20

0.2

0.4

0.6

0.8

1

1.2

y=x

y kes

q line

y op at

y op bawah

Sheet1

θxi,f αi αi.xi,f 1.50 1.20 1.35

C3 0.05 5 0.25 0.07 0.07 0.07iC4 0.15 2.6 0.39 0.35 0.28 0.31nC4 (LK) 0.25 2 0.5 1.00 0.63 0.77iC5 (HK) 0.2 1 0.2 -0.40 -1.00 -0.57nC5 0.35 0.845 0.29575 -0.45 -0.83 -0.58

0.57 -0.86 0.00

Mencari Rmxi,d αi αi.xi,d αi.xi,d/(αi-θ)

C3 0.11 5 0.55 0.15iC4 0.33 2.6 0.86 0.69nC4 (LK) 0.53 2 1.06 1.63iC5 (HK) 0.02 1 0.02 -0.06nC5 0.01 0.845 0.01 -0.01

2.39Rm+1 2.39Rm 1.39Rm/(Rm+1) 0.58R/(R+1) 0.67

Figure 11.11Nm/N 0.56N 15.41103795

Mencari nilai θ

Sheet2

garis kesetimbangan

x y=x y kes y op at y op bawah0 0 0 0.189162562 -0.00758185

0.05 0.05 0.095238095 0.303462069 0.050.1 0.1 0.181818182 0.343609852 0.10758185

0.15 0.15 0.260869565 0.383757635 0.165163699 q line0.2 0.2 0.333333333 0.423905419 0.222745549 x

0.25 0.25 0.4 0.464053202 0.280327398 0.560.3 0.3 0.461538462 0.504200985 0.337909248 0.56

0.35 0.35 0.518518519 0.544348768 0.395491097 0.560.4 0.4 0.571428571 0.584496552 0.453072947 0.56

0.45 0.45 0.620689655 0.624644335 0.5106547960.5 0.5 0.666666667 0.664792118 0.568236646

0.55 0.55 0.709677419 0.704939901 0.6258184950.6 0.6 0.75 0.745087685 0.683400345

0.65 0.65 0.787878788 0.785235468 0.7409821940.7 0.7 0.823529412 0.825383251 0.798564044

0.75 0.75 0.857142857 0.865531034 0.8561458930.8 0.8 0.888888889 0.905678818 0.913727743

0.85 0.85 0.918918919 0.945826601 0.9713095920.9 0.9 0.947368421 0.985974384 1.028891442

0.95 0.95 0.974358974 1.026122167 1.0864732911 1 1 1.066269951 1.144055141

0.5 0.5906403940.55 0.630788177

0.6 0.6709359610.65 0.711083744

0.7 0.7512315270.75 0.79137931

0.8 0.8315270940.85 0.871674877

0.9 0.911822660.96 0.96

Sheet2

y0.56

0.60.6

0.735

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