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GROUP TASK KFHC

Nama Kelompok : 1. Ayu Lestari

. Lestari Sri Ra!ayu

". #e$%a Na$%a Ra&ak 

Kelas : Tek$ik Permi$yaka$ Re'uler A (1)

*uestio$ :

1. For the gas composition given in the following text, determine appare$t mole+ular,ei'!t- spe+ii+ 'ra/ity- pseu%o0+riti+al pressure- pseu%o +riti+al temperatureof gas. 

Component Mole Fraction

C10,77

5

C20,08

3

C30,02

1

i-C40,00

6

n-C40,00

2

i-C50,00

3

n-C50,00

8

C60,00

1

C7

0,00

1

N20,05

0

CO20,03

0

H2S0,02

0

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A$s,er :

Component yi mi !imi "ci yi"ci #ci yi#ci

C1   0,775 18,04 12,431 673 521,575 344 266,6

C2   0,083 30,07 2,49581 709 58,874 350 29,05

C3   0,021 44,10 0,9261 618 12,978 666 13,986

i-C4   0,006 58,12 0,34872 530 3,18 733 4,398

n-C4   0,002 58,12 0,11624 551 1,102 766 1,532

i-C5   0,003 72,15 0,21645 482 1,446 830 2,49

n-C5   0,008 72,15 0,5772 485 3,88 847 6,776

C6   0,001 86,18 0,086618 434 0,434 915 0,915

C7   0,001 114,23 0,11423 361 0,361 1024 1,024

N2   0,050 28,02 1,401 227 11,35 492 24,6

CO2   0,030 44,01 1,3208 1073 32,19 548 16,44

H2S   0,020 33,08 0,6616 672 13,44 1306 26,12

Per!itu$'a$:

A.Mwa = ∑yi.Mwi

= (-223"

B.Yg = Mwa/!,"#

= (-41)"5)

$.%pc = ∑yi.%ci

= (-43"

&.'pc = ∑yi . 'ci

= "2"-2"1

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. After yo( determine %pc and 'pc, determine Pseu%o0Re%u+e Pressure and Pseu%o0 

Re%u+e Temperature. After that find the 'as +ompressi6ility Fa+tor (sing Sta$%i$'

Kart& Correlatio$ and 7e''s 7rill Correlatio$. )standing *art+ chart is attached

8iketa!ui :

• % = -%sia

• ' = 0-F = 1#-2n

• Yi34 5 Yi$6 = ) , 5 ,- = ,

• Yi3s = ) ,

7awa89

A. 0,-"   (Tpr−0,92)0,5−0,36Tpr−0,10

= 0,-"

1,75286−0,92¿¿¿

= ,-#0:

B.  0,62−0,23×1,75286¿ 4,92085+(   0,006

1,75286−0,8−0,037)4,92085+ 0,32×4,920852

106,77575032

= 0,"10!#-

$.   0,132−0,32log (Tpr )

=   0,132−0,32log (1,75286 )

= ,:#

&.   10f 

¿100,0121262

¿1,0283151

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;. = " < )'pr 0

= " ) 0,#!1 < 0 = -445453"

F. ,-01 < ,:" 'pr 5 ,0!:  pr  = ,-01 ,:" )0,#!1 5 ,0!: ,

= ,001