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Design of Gas Oil Separation Plant

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Karim Bassily

on 8 December 2013

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Transcript of Design of Gas Oil Separation Plant

Design of Gas Oil Separation Plant
Omar Al-Sweasy
Karim Bassily
Mohamed Elhaj
111732
112049
111031
Introduction
Group of hydrocarbons from C1 to C7, to be separated.
Three separators are used
For the first separator, P1 = 500 Psi
For the third separator, P3 = 14.7 Psi
Unknown pressure of the second separator (P2)
Compositions and molar flow rate of the first separator are given.
Aims
The Excel program is used to reach the minimum composition of C5+ in the vapour outlet of the separators by optimising the pressure of the second separator.
The HYSYS program is used to simulate the process and to reach the minimum compositions of C5+ in the vapour outlet of the separators by optimising the pressure of the second separator.

Calculate diameter, and seam to seam length for one separator.
Equations used in Excel
Equations used in Excel, cont’d
Equilibrium equation:
Y=KX
Converting from standard conditions to normal conditions:
Overall material balance:
F=L+V
Component material balance:
Compositions out of the separator:
Initial guess for the second pressure:
Where,
Open Excel file
HYSYS Simulation
HYSYS Simulation, Cont'd
Stream summary table:
Design of the separator
Separators used are vertical separators.
To get the compressibility factor (Z):
Calculations done on the first separator.
Design of the separator, cont’d
Design of the separator, cont’d
Design of the separator, cont’d
Equations used in case of gas constraint
Assume Cd = 0.34
Design of the separator, cont’d
Equations used in case of liquid constraint:
Design of the separator, cont’d
Results
D = 60 inch = 1.524 m
Lss = 10.91 ft = 3.33 m
Questions?
Thank you