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Table 4 Example of calculation of overhead product and reflux compositions

From: Refinery Gas Treating Processes

Comp

Mol/h

K at 100 °F

x = y/k

H2S

212.5

14.75

14.40678

H2O

x

0.041

x/0.041

C5’s

1.8

0.67

2.686567

 

214.3

 

17.09335

 

214.3 + x

 

17.09 + x/0.41

 

197.21

 

x/0.041 + x

  

x = 8.43

 
  

Mol/h

lb/h

H2S

0.065

=29.5

1,003

H2O

0.923

=419.6

7,553

HC

0.012

=5.5

396

  

=454.6

8,952