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Separator Design 341

Table 6.7.2 Summary of the Calculation for the Geometric-Average Rela-
tive Volatility

Component K Fi GC Fi K Ti «Ti K Bi «Bi («i)avg

4.965 7.958 3.388 8.225 4.409 3.519 6.130
CH 4
C 2H 6(LK) 1.396 2.238 0.9150 2.221 2.058 1.642 2.013

C 3H 6(H) 0.6239 1.0 4.119 1.0 1.253 1.0 1.0
0.5488 0.8796 0.3429 0.8324 1.167 0.9314 0.8802
C 3H 8
i-C^jo 0.2662 0.4267 0.3797 0.1564 0.7515 0.5998 0.4598

0.2213 0.3547 0.1364 0.3311 0.6680 0.5331 0.3971
n-C 4H 10

Table 6.7.3 Final Composition of the Top and Bottom Products for a De-
ethanizer

Component Feed Rela- Fraction Distillate Bottom Distillate Bottoms
Moles tive Recovered Moles Product Mole Mole
Volatil- in Moles Fraction Fraction
ity Distillate XiD xiD
(aOavg
CH 4 0.05 6.130 ~ 1.0 -0.05 ~0 0.1255 -0
C 2 H 6 (LK) 0.35 2.013 0.99 0.3465 3.500xlO~ 3 0.8695 5.819xlO~ 3
C 3H 6(HK) 0.15 1.0 0.01 0.0015 0.1485 0.003764 0.2469

C 3H 8 0.20 0.8802 2.350xlO~ 3 4.700xlO~ 4 0.1995 0.001179 0.3317
i-Butane 0.10 0.4598 1.428X10' 6 1.429xlO~ 7 -0.10 3.583xlO' 7 0.1663

n-Butane 0.15 0.3970 2.682xlO~ 7 4.023xlO~ 8 -0.15 l.OlOxlO' 7 0.2494

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