Data Sheet 3

VERTICAL LP SEPARATOR (2 phase) INPUT

LP SEPARATOR

OUTPUT

Feed Flow (t/d) Density (kg/m3) Viscosity (cP) Droplet Size, (μ) Oil in Gas K Value (m/s) from mist extractor data GPSA fig.7.18 ρ.v2 max for inlet nozzle (kg/m.s2) ρ.v2 max for gas outlet nozzle (kg/m.s2) Max vel. in Oil outlet nozzle (m/s) Mixture density (kg/m3)

GAS MIX. LIQUID 136.5

RESIDENCE TIMES

16.88

930.0

0.0114

1.254

Actual (mins) 0.3 0.6 0.3 0.4 0.6

Specified

443.6

(mins)

HLL-HLSD NLL-HLL NLL-LLL LLL-LLSD LLSD to bottom

200 0.12 3600

0.1 0.3 0.2 0.2 0.3

** WARNINGS ** OK OK OK OK OK

3600

SETTLING VELOCITY CRITERION K Factor Gas Velocity (m/s) Gas Velocity (m/s) - calculated Oil Droplet Velocity (m/s) Gravity Settling Method

3.00

67.75

Choose Dished end shape by clicking on arrow.

semi-ellipsoidal

See note 6

0.90 0.10 0.36

OK OK

CALCULATIONS LIQUID / VAPOUR SEPARATION K Value Method (Note 2)

K Value Max allow. Velocity (Vmax) Gas Velocity Minimum Vessel Diameter

0.12 0.90 0.10 364

m/s m/s m/s mm

Dmax is the upper particle size limit for each of the laws. Kcr is the critical constant for maximum particle size (from GPSA Handbook). Vt is the settling velocity in m/s.

Oil from Gas (Gravity Settling Laws method) Particle / droplet size calc for determination of appropriate law Settling Velocity Settling Law Used Law Used:

0.36 m/s Intermediate law Kcr

Actual Gas Velocity OK Stoke's Law Intermediate Law Newton's Law

Stoke's Law (Kcr = 0.025)

Intermediate Law (Kcr = 0.334)

Newton's Law (Kcr = 18.13)

2 Vt = 1488 g Dp (ρl - ρv)

Vt = 3.54*g0.71 Dp1.14 (ρl - ρv)0.71

Vt = 1.74 * SQRT(g Dp (ρl-ρv) / ρv )

ρv

0.29

18μ

0.03 0.33 18.13

Vt (m/s) 1.75 0.36 0.57

Dp max (μ) 31 414 22465

* μ0.43

TITLE

VERTICAL LP SEPARATOR

SEPARATOR SIZING SPREADSHEET

PROJ. CALCULATION SHEET

BY

DATE

CHECKED

FT

DATE AND TIME PRINTED:

PT. PERTAMINA EP REGION SUMATERA

DATE BP

13-Jun-12

9:45 AM

CALC.NO

PT. GERBANG SARANABAJA

2012 - 05 - SPR - 02

PAGE 2 OF 4

VERTICAL LP SEPARATOR (2 phase) SKETCH Act Gas Outlet Nozz. Size = Min Gas Outlet Nozz. Size =

Calculated Total T/T Height: 3040 mm consider 3048 mm

146 mm Gas = 90 mm

136.46 336.84

t/d 3 Am /h

443.58 19.87

t/d m3/h

300 mm with L/D of approx 2.8

Wire Mesh Demister

152 mm ID=1099mm

750 mm

(Note 4)

438 mm

(Note 5)

650 mm

(Note 2)

GAS

Inlet Min Inlet Nozzle Size = Act Inlet Nozzle Size =

132 mm 194 mm

NOMENCLATURE LLSD LLL NLL HLL HLSD g Dmax ρL ρV Dp

Low Level Shut Down Low Liquid Level Normal Liquid Level High Liquid Level High Level Shut Down Gas constant Upper Particle Size Limit Liquid density (kg/m3) Vapour density (kg/m3) Droplet diameter (μ)

μ Vt VMAX

Gas viscosity Cp Settling Velocity (m/s) Maximum vapour velocity (m/s)

K KCR

Design vapour velocity factor (m/s) Proportionality constant, dimensionless.

HLSD HLL

750 mm 650 mm

NLL

457 mm

Volume increment 0.09 m3 0.18 m3

0.10 m3

OIL LLL LLSD

350 mm 200 mm

0.14 m3 0.36 m3

(Note 3) Volume to LLSD including dished end =

Act Liquid Outlet Nozz. Size = 67 mm

Min Liquid Outlet Nozz. Size =

Oil = 50 mm

TITLE

VERTICAL LP SEPARATOR

SEPARATOR SIZING SPREADSHEET

PROJ. CALCULATION SHEET

BY

DATE

CHECKED

FT

DATE AND TIME PRINTED:

PT. PERTAMINA EP REGION SUMATERA DATE BP

13-Jun-12

9:45 AM

CALC.NO

PT. GERBANG SARANABAJA

2012 - 05 - SPR - 02

PAGE 3 OF 4

VERTICAL LP SEPARATOR (2 phase) CALCULATIONS Cont'd

AREA & VOLUME INFORMATION

Area (m2)

GAS Cross Sectional Area

0.949

STORAGE (Volume from Bottom) Oil HLSD Oil HLL Oil NLL Oil LLL Oil LLSD

0.949 0.949 0.949 0.949 0.949

Cylinder Volume (m3)

Volume + Dished end (m3)

Volume Increment (m3)

0.711 0.617 0.434 0.332 0.190

0.885 0.790 0.607 0.506 0.363

0.095 0.183 0.102 0.142 0.190

Dished End Type

Dished End Volume (m^3) 0.174 0.348

semi-ellipsoidal hemispherical

0.174

NOTES

1. Maximum allowable vapour velocity is calculated from the equation: VMAX

=

K [ (ρL - ρV) / ρV ] 0.5

2. 150 mm minimum. 3. Space for instrument nozzles and/or emergency liquid capacity - minimum 150 mm. 4. 60% of vessel diameter or 750mm whichever is greater. 5. twice inlet nozzle diameter. 3 6 .Semi-ellipsoidal end-volume is calculated using the formula V = (Π x (ID) )/24 which applies to one end only of the separator (ie. the bottom). Hemispherical end-volume for one dished end is calculated using the formula: V = (P x (ID)3 )/12 Information taken from GPSA handbook Sections SI - 6, and in particular, figs. 6.21&6.22

TITLE

VERTICAL LP SEPARATOR

SEPARATOR SIZING SPREADSHEET

PROJ. CALCULATION SHEET

BY

DATE

CHECKED

FT

DATE AND TIME PRINTED:

PT. PERTAMINA EP REGION SUMATERA

DATE BP

13-Jun-12

9:45 AM

CALC.NO

PT. GERBANG SARANABAJA

2012 - 05 - SPR - 02

PAGE 4 OF 4