217259464 spreadsheet to design separators

SEPARATOR SIZING SPREADSHEET

MAIN MENU

SPREADSHEET INFORMATION

VERTICAL SEPARATOR ( 2 PHASE )

HORIZONTAL SEPARATOR ( 2 PHASE )

HORIZONTAL SEPARATOR ( 3 PHASE WITH BOOT)

HORIZONTAL SEPARATOR ( 3 PHASE, NO BOOT,

WEIRPLATE PARTITION )


DRAW OFF PIPE FOR CONDENSATE )

INSTRUCTIONS

SEPARATOR SIZING SPREADSHEET REV: A

DATE: FEBRUARY 1999

FILE SEPARP1.XLS

MAIN MENU

SPREADSHEET INFORMATION

HORIZONTAL SEPARATOR ( 2 PHASE )


WEIRPLATE PARTITION )

SEPARATOR SIZING SPREADSHEET REV: A

DATE: February 1999

I.PURPOSE

The aim of the separator sizing spreadsheet is to assistthe designer in saving valuable time resources by providing a user-friendly spreadsheet in Excel to calculate sizingparameters for both horizontal and vertical separators.

II.DESIGN BASES

A. Gas residence times are calculated using the normal liquid levelas the basis. In the case of the horizontal separatorwith weirplate partition, the basis used is the height ofthe weir for the gas volume. Dished end volumes havebeen neglected for the gas residence time calculations.

B. K-values to be used as input data for the spreadsheets

The K factors must be converted to m/s to be placed intothe spreadsheet. The purpose of the K-factor is fordesigns which include woven wire demisters. Demisters(mist extractors) can significantly reduce the requireddiameter of vertical separators.

C. Dished-end volume calculations have been included forboth vertical and horizontal separators. For thevertical separator, an option is provided for choosingbetween semi-ellipsoidal and semi-hemispherical ends,however, for all horizontal separators, the ends havebeen assumed to be semi-ellipsoidal.(Reference: GPSA Handbook section 6 Fig 6.21-6.22)

D. Other standards used in calculations includeAPI RP 521 Section 5.4.2 and calculations for thestandpipe were from EXXON Criteria in Design Practice 5B(September 1978).

III.METHOD

The following procedure is a step-by step outline for thedesigner.

A. Step One: Choose the type of separator required.The separators available in this spreadsheet include:

-Horizontal, 3 Phase, with boot-Horizontal, 3 Phase, no boot, weirplatepartition.-Horizontal, 3 Phase, no boot, standpipefor condensate.-Horizontal, 2 Phase-Vertical, 2 Phase

Page 1 of 3

are found in the GPSA Handbook(10thedition), figure 7.9 on page 7-7.

INSTRUCTION NOTES

SEPARATOR SIZING SPREADSHEET - INSTRUCTION NOTES

Vertical separators are usually selected when the gas-liquid ratio is high or total gas volumes are low.Horizontal separators are most efficient where largevolumes of total fluids and large amounts of dissolvedgas are present with the liquid. For more information onseparators please refer to GPSA Handbook, Section 7.

B. Step Two: After the separator type is chosen, begininputting data into the cells of the spreadsheet whichhave blue italicised text. Do not write in cells whichcontain red or black text! Input data is summarised inthe top left hand side of the spreadsheet. Feedflowrates, properties and nozzle velocity specificationsare entered in this section. Data on vessellength, diameter and liquid levels are entered on thevessel sketch. Unknown values need to be assumed,otherwise errors will occur in the results.

C. Step Three: When all blue cells are filled - including thedimensions on the sketch, the spreadsheet will calculateall relevant values. The intermediate calculations canbe found below the sketch. Final output results arelisted on the sketch and in the top section of thespreadsheet. All formulae are in red text.

D. Step Four: Before final outputs can be used, warningsmust be considered. Warnings appear in bold green text,and will appear as "OK" when there is no warning present.If a warning does exist, try to change the relevantparameters to remove or reduce the warnings. Thesegenerally relate to liquid levels in the separator and gasresidence times.

E. Step Five: Check your units!!! The units defined on thespreadsheets can be found in the nomenclature section.The notes section may also assist with understandingwhich units to use. You can change the values in theblue cells as many times as you like.

F. Step Six: When you have your final output, SAVE yourfile by choosing the "SAVE AS" option under the "FILE"menu in Excel . Make sure that you use a different filename to the original master copy. (this will safeguardagainst deletion of the master copy)

G. Step Seven: Your work is now ready to PRINT. You mayfind that Excel does not have enough memory to displaythe spreadsheet fully. The print range has been setup for A4 landscape paper and will print only the first 2-3 pages of the spreadsheet (the rest of the spreadsheet consists ofintermediate calculations). If you find that the spreadsheetwill not fit on the paper, choose "PAGE SETUP" from the"FILE" menu in Excel and reduce the size of the sheet.

Page 2 of 3

SEPARATOR SIZING SPREADSHEET - INSTRUCTION NOTES

Another option available is to choose A3 sized paper(page setup menu) to print out your spreadsheet. It isnot recommended that the print area be altered as thishas been preset. However, if the print area needs to bealtered, please use the following procedure.

"TOOLS""OPTIONS""GENERAL""MICROSOFT EXCEL 4 MENUS""OK"(HIGHLIGHT THE AREA THAT YOU WISH TO PRINT)"OPTIONS""SET PRINT AREA"

IV. ADDITIONAL NOTES

A. THE CALCULATION TITLE BLOCK

There is a title block at the bottom of each pageof the spreadsheet. Spaces have beenprovided for entering the calculation title, projectnumber and calculation number. These spaces are accessedby moving the mouse pointer into the particular box andclicking once with the left hand mouse button. At thispoint, an object box will appear. Simply click insidethe box once using the left hand mouse button and enterthe data in the normal way. When you have finishedtyping the information, move the mouse pointer to anotherpart of the spreadsheet and click once with the left handmouse button.

NOTE: While space has been provided on the title blockfor entering the originators and checkers initials andrelevant dates, these spaces cannot be accessed by theuser. This is because signatures are required to behand written by the originator and checker.

B. MAIN MENUThe main menu on the separator sizing spreadsheetallows the user to access any of the sheets in theworkbook through the use of a macro button. Once thedesigner is in a particular worksheet, they can return tothe menu by clicking the "MENU" macro button inthe individual worksheet.

Page 3 of 3


SEPARATORS

• HORIZONTAL SEPARATOR (3 phase with boot)

• HORIZONTAL SEPARATOR (3 phase, no boot, weirplate partition)

• HORIZONTAL SEPARATOR (3 phase, no boot, standpipe for condensate.)

• HORIZONTAL SEPARATOR (2 phase)

• VERTICAL SEPARATOR (2 phase)

SPREADSHEET APPLICATION

Sizing of oil/gas/water separators for the hydrocarbon production industry.

BASIS

GPSA Handbook, Volume 1, Section 7. And also Section 6 Fig 6-21,6-22API RP 521, Section 5.4.2 - Sizing a Knockout Drum

REVISION HISTORY

Revision P1 issued in February 1996 - file SEPARP1.XLSWith help from Don Borchert, Rod Harper, Nerrida Scott and Mark Sloma

INSTRUCTIONS FOR USE

Spreadsheet Conventions & Format

Input Data to be entered by the user is shown on the screen in blue italicised type. When printed the input appears in italics only.

Input data is summarised at the top left hand side of the spreadsheet. Feed flowrates, properties and nozzle velocity specifications are entered in this section. Information on vessel length, diameter and liquid levels is entered on the vessel sketchdescribed below.

Output Cells containing formulae are shown in red text.Cells containing formulae have been protected.

Final output data refers specifically to gas, oil and water residence times and oil and water droplet settling times. This data is summarised at the top centre of the spreadsheet.Data on calculated nozzle sizes and other vessel specific dimensions are shown on the vessel sketch.

Warnings Warning messages will appear to the right of the output data summary to indicate when results fall outside the design criteria described in the KRJB procedure. Where resultssatisfy the design requirements the message 'OK' will appear in the WARNINGS section.

Warning messages may also appear on the vessel sketch, however in this case therewill be no message if the input/output data meets the design requirements.

Messages are shown on the screen in bold green type. When printed, the messages appear in bold type and will be enclosed in double asterisks.

Date and time printed: 22-Apr-23 1:57 AM Page 1 of 2

Kvaerner RJ Brown Pte Ltd

SEPARATOR SIZING SPREADSHEET - INFORMATION

Sketch The vessel sketch appears immediately below the input section. Some input and finaloutput data is shown on this sketch as noted above. Intermediate calculation results such as volumes and flowrates are also shown on the sketch.

Calculations This section follows the sketch and includes all the equations and intermediate calculations of the spreadsheet.

Defaults These include specified residence and settling times.Defaults are the minimum design requirements that are required for comparison against calculations.

maximum nozzle velocities and liquid levels may be found in the KRJB procedure.

Notes This section includes some important equations and general assumptions used in thespreadsheet.

Nomenclature Nomenclature used in the spreadsheets including units used, is detailed below the notes section.

Calculation Title Block

There is a title block at the bottom of each page of the spreadsheet.Spaces are provided for entering the calculation title, project number and calculation number. These spaces are accessed by moving the mouse pointer into the particular box and clicking once with the left hand mouse button. At this point an object box will appear. Simply click inside the box once using the left hand mouse button and enter the data in thenormal manner. When you have finished typing the information, move the mouse pointer to another part of the spreadsheet and click once with the left hand mouse button.

initials and relevant dates, these spaces cannot be accessed by the user. This is becausesignatures are required to be hand written by the originator and checker.

Printing

The print range is pre-set and covers all of the sections described above. Printing is carried outby selecting the 'Print' command from the normal EXCEL pull down menu and selecting 'OK'.

Date and time printed: 22-Apr-23 1:57 AM Page 2 of 2

Kvaerner RJ Brown Pte Ltd

Other recommended values for variables or constants such as K, droplet size, rV2 ,

Note: While space has been provided on the title block for entering the originators and checkers

HORIZONTAL SEPARATOR (3 phase with boot)

INPUT OUTPUT

Feed GAS OIL WATER RESIDENCE TIMES Specified Actual

Flow (t/d) 2950.0 500.0 50.0 Shell (mins) (mins) ** WARNINGS **

11.1 829.2 972.0 Gas residence time (seconds) 17.7

Viscosity (cP) 0.02 7.00 0.49 HLL-HLSD 3.0 5.6 OK

Oil in Gas 100 NLL-HLL 3.0 5.0 OK

Oil in Water 1000 NLL-LLL 3.0 4.4 OK

Water in Oil 500 LLL-LLSD 3.0 5.4 OK

LLSD to Outlet 3.0 3.0 ** Warning ! Residence time insufficient **

1500 Oil Residence Time at NLL 12.8

3750

Max vel. in Oil out nozzle (m/s) 1.0 RESIDENCE TIMES Specified Actual

Max vel. in water out nozzle (m/s) 1.0 Boot (mins) (mins) ** WARNINGS **K Value (m/sec) 0.06 HIL-HILSD 3.0 5.5 OK

13.1 NIL-HIL 3.0 3.3 OK

NIL-LIL 3.0 3.3 OK

LIL-LILSD 3.0 3.3 OK

LILSD to bottom 3.0 4.8 OK

Water residence time at NIL 11.4 SETTLING VELOCITY CRITERION

Maximum allowable Gas Velocity (m/s) 0.52 m/s

Gas Velocity (m/s) - calculated 0.51 m/s OK

Oil Droplet Velocity (m/s) - Gravity Settling Method Water velocity in Boot 0.00 m/sec

Oil from Gas 0.145 m/s

Water from Oil 0.003 m/s

Oil from Water 0.038 m/s OK

Droplet fall time (Oil in gas) 16.5 secs OK

NOTE: Gas Velocity Criteria are based on HLSD

DATE AND TIME PRINTED: 22-Apr-23 1:57 AM PAGE 1 OF 3

Density (kg/m3)

Droplet Size (m)

Droplet Size (m)

Droplet Size (m)

r.v2 max for inlet nozzle (kg/m.s2)

r.v2 max for gas outlet nozzle (kg/m.s2)

Mixture density (kg/m3)

TITLE

CALCULATION SHEET

PROJ.

BY DATE CHECKED DATE SK.CALC.NO



SKETCH

Min. Gas Out. nozzle ID462 mm Gas = 2950.00 t/d

Length T/T= 9000 mm 11073.57

Inlet GAS Height

Minimum Inlet nozzle ID I. D. = HLSD 600 mm 54.56 (Gas)606 mm 3000 mm HLL 500 mm 2.34 (HLL-HLSD)

NLL 400 mm 2.08 (NLL-HLL)

LLL 300 mm 1.86 (NLL-LLL)

LLSD 150 mm 2.27 (LLL-LLSD)

OIL 1.24 (LLSD-Boot)

Interface Height Min Oil Outlet nozz ID: 94 mm

1000 ID

HILSD 750 mm 0.196 (HIL-HILSD) Oil = 500.00 t/d

HIL 500 mm 0.118 (NIL-HIL) 25.12

1000 mm NIL 350 mm 0.118 (NIL-LIL)

LIL 200 mm 0.118 (LIL-LILSD)

LILSD 100 mm 0.170 (LILSD-Btm)

WATER

Min. Water out nozzle ID: 50 mm 50.00 t/d

Water = 2.14

NOMENCLATURE

LLL Low Liquid Level HIL High Interface Level

LIL Low Interface Level HLSD High Level Shut Down Gas viscosity Cp

LLSD Low Level Shut Down HILSD High Interface Level Shut Down Settling Velocity m/s

LILSD Low Interface Level Shut Down Btm Bottom Maximum vapour velocity m/s

NLL Normal Liquid Level X-Area Cross sectional area K Design vapour velocity factor m/s

NIL Normal Interface Level Proportionality constant, dimensionless.

HLL High Liquid Level


Am3/h

Vol. (m3)

Vol.(m3)

m3/h

m3/h

Dp Droplet (particle diameter) m

m

Vt

VMAX

rl Liquid density kg/m3 KCR

rv Vapour density kg/m3

Boot Height (mm)

TITLE

CALCULATION SHEETPROJ.




CALCULATIONS

SETTLING VELOCITIES Oil in Gas (Gravity Settling Laws method)Oil From Gas ("K" Value method) Particle size calc for determination of appropriate lawK Value (m/s) 0.06

0.52 m/s Settling Velocity 0.15 m/sGas Horiz. Velocity 0.51 m/s Settling Law Used Intermediate Law

*note 2 Law Used: Kcr Vt Dp maxActual Gas Velocity OK (m/s)

Stoke's Law 0.03 0.28 47 Intermediate Law 0.33 0.15 621 Newton's Law 18.13 0.47 33733

Oil in Water (Gravity Settling Laws method) Water in Oil (Gravity Settling Laws method)Particle size calc for determination of appropriate law Particle size calc for determination of appropriate law

Settling Velocity 0.038 m/s Settling Velocity 0.003 m/sSettling Law Used Intermediate Law Settling Law Used Stoke's LawLaw Used: Kcr Vt Dp max Law Used: Kcr Vt Dp max

(m/s) (m/s)Stoke's Law 0.03 0.158 194 Stoke's Law 0.03 0.003 1134 Intermediate Law 0.33 0.038 2588 Intermediate Law 0.33 0.006 15153 Newton's Law 18.13 0.072 140464 Newton's Law 18.13 0.051 822517

NOTES

1 Equations for Stokes Law, Intermediate Law and Newtons Law are taken from GPSA Handbook, Volume 1, Section 7.

Figure 7.4

2. Maximum allowable vapour velocity is calculated from the equation in GPSA Handbook, Volume 1, Section 7:

3. LLSD height calculation is based on the distance between the bottom of the cylinder and the low level shut down for the oil.

LILSD height calculation is based on the distance from the base of the boot dished end to the low interface level shut down for the water.

4.

5 Calculations for gas residence time and area/volume calculations use the normal liquid level, NLL as the height basis. End volumes is ignored for gas volume calculations.


*Max Allowable Velocity,Vmax

(m)

(m) (m)

Stoke's Law (Kcr = 0.025) Intermediate Law (Kcr = 0.334) Newton's Law (Kcr = 18.13)

Vt = 1488 g Dp2 (rl - rv) Vt = 3.54*g0.71 Dp

1.14 (rl - rv)0.71 Vt = 1.74 * SQRT(g Dp (rl-rv) / rv )

18m rv0.29 * m0.43

VMAX = K [ (rl - rv) / rv ] 0.5

Information for partial volumes and dished ends was from GPSA handbook (10th edition) Section 6, and in particular, fig.6-21.6-22.

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.see note 1

TITLE




HORIZONTAL SEPARATOR (3 phase with weir, no boot)

INPUT OUTPUT

Feed GAS OIL RICH MEG RESIDENCE TIMES Specified Actual

Flow (t/d) 0.240 268.4 2927.6 (mins) (mins) ** WARNINGS **

3.24 836.6 1028.2 Gas 60.0 4500 seconds

Viscosity (cP) 0.01 17.10 0.89

Oil in Gas 150 Right Side of Weir

Oil in Water 150 HLL-HLSD 1.0 4.00 OK

Water in Oil 150 NLL-HLL 1.5 4.29 OK

NLL-LLL 2.0 4.24 OK

7543 LLL-LLSD 1.0 4.21 OK

280 LLSD to Outlet 1.0 4.25 OK

Max vel. in Oil out nozzle (m/s) 1.0 Oil Residence Time at NLL 5.00 12.70 OK

Max vel. in water out nozzle (m/s) 1.0

K Value (m/s) per GPSA fig 7.9 0.12

985.8

RESIDENCE TIMES Specified Actual

(mins) (mins) ** WARNINGS **

Left Side of Weir

SETTLING VELOCITY CRITERION HIL-Weir 1.0 1.1 OK

Maximum Allowable Gas Velocity (m/s) 1.96 m/s OK NIL-HIL 1.0 1.16 OK

Gas Velocity (m/s) - calculated 0.00244 m/s NIL-LIL 2.0 3.60 OK

Oil Droplet Velocity (m/s) - Gravity Settling Method LIL-LILSD 1.0 4.12 OK

Oil from Gas 0.39 m/s LILSD to Outlet 1.5 11.25 OK

Water from Oil 0 m/s Oil Residence Time (NIL to Weir) 19.72 mins

Oil from Water 0.003 m/s Rich MEG Residence Time (Btm to NIL) 18.97 mins

DROPLET FALL TIMES (Left Side of Weir)

Oil in Gas (Top-Liquid) 0.8 secs OK

MEG in Oil (NIL to Weir) 25.5 min ** Warning ! Residence time insufficient! **

Oil in MEG (Btm-NIL) 10.95 min OK

NOTE: Gas Velocity Criteria are based on weir height, Hw.


Density (kg/m3)

Droplet Size (m)

Droplet Size (m)

Droplet Size (m)




TITLE

CALCULATION SHEET

PROJ.

BY DATE CHECKED DATE CALC.NO


RELIANCE'S KGD6 FIELD DEVELOPMENT

LIQUID SEPARATOR

2001 - KGD6 - D1 - PF - B - PRR - 402SV


SKETCH

Gas Outlet nozzle ID Gas = 0.24 t/d

50 mm 3.09 Length T/T = 12000 mm

Inlet Nozzle ID131 mm

Ht.(mm) GAS3.86 (Gas) 1935.00 Interface Weir Height,Hw = 1945 mm Ht(mm)2.10 (HIL-Weir) 1835 HIL I. D. = HLSD 1845

2.29 (NIL-HIL) 1735 NIL 2267 mm OIL HLL 1545 0.89 (HLL-HLSD)7.12 (NIL-LIL) 1435 LIL NLL 1245 0.95 (NLL-HLL)8.15 (LIL-LILSD) 1135 LILSD LLL 945 0.94 (NLL-LLL)22.24 (LILSD-Out) RICH MEG LLSD 645 0.94 (LLL-LLSD)

0.95 (LLSD-Out)OIL

Oil Outlet nozzle ID T/W = 11000 mm 69 mm

(If 2 phase set Hw=0, t/w=t/t)Oil = 268.36 t/d

13.37

Rich MEG outlet Nozzle ID Rich MEG = 2927.60 t/d

205 mm 118.64


Am3/h

Vol. (m3)Vol. (m3)

m3/h

m3/h

TITLE

BY


CALCULATION SHEET

PROJ.

DATE CHECKED DATE CALC.NO

LIQUID SEPARATOR


2001 - KGD6 - D1 - PF - B - PRR - 402SV


CALCULATIONS

SETTLING VELOCITIES Oil in Gas (Gravity Settling Laws method)

Oil From Gas ("K" Value method) Particle size calc for determination of appropriate lawK Value, m/s 0.12 Max allowable velocity,Vmax 1.96 m/s Settling Velocity 0.39 m/sGas Horiz. Velocity 0.00244 m/s Settling Law Used Intermediate Law

Law Used: Kcr Vt Dp max

Actual Gas Velocity OK (m/s)Stoke's Law 0.03 0.90 55

Intermediate Law 0.33 0.39 740 Newton's Law 18.13 1.07 40150

Oil in Water (Gravity Settling Laws method) Water in Oil (Gravity Settling Laws method)Particle size calc for determination of appropriate law Particle size calc for determination of appropriate law

Settling Velocity 0.003 m/s Settling Velocity 0.000 m/sSettling Law Used Stoke's Law Settling Law Used Stoke's LawLaw Used: Kcr Vt Dp max Law Used: Kcr Vt Dp max

(m/s) (m/s)Stoke's Law 0.03 0.003 259 Stoke's Law 0.03 0.000 1860 Intermediate Law 0.33 0.004 3463 Intermediate Law 0.33 0.001 24846 Newton's Law 18.13 0.03 188003 Newton's Law 18.13 0.032 1348657

NOTE: Equations for Stokes Law, Intermediate Law and Newtons Law are taken from GPSA Handbook, Volume 1, Section 7, Figure 7.4

NOMENCLATURE

LLL Low Liquid Level X-Area Cross sectional areaLIL Low Interface LevelLLSD Low Level Shut Down LILSD Low Interface Level Shut Down NLL Normal Liquid Level Gas viscosity CpNIL Normal Interface Level Settling Velocity m/sHLL High Liquid Level Maximum vapour velocity m/sHIL High Interface Level K Design vapour velocity factor m/sHLSD High Level Shut Down Proportionality constant, dimensionless.HILSD High Interface Level Shut Down Height of Weir, mmBtm Bottom


(m)

(m) (m)

Stoke's Law (Kcr = 0.025) Intermediate Law (Kcr = 0.334) Newton's Law (Kcr = 18.13)Vt = 1488 g Dp2 (rl - rv) Vt = 3.54*g0.71 Dp1.14 (rl - rv)0.71 Vt = 1.74 * SQRT(g Dp (rl-rv) / rv )

18m rv0.29 * m0.43

rl Liquid density kg/m3


Dp Droplet diameter mm Vt

VMAX

KCR

Hw

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.

TITLE





LIQUID SEPARATOR

2001 - KGD6 - D1 - PF - B - PRR - 402SV

HORIZONTAL SEPARATOR (3 phase, no boot, draw off pipe for condensate)

INPUT OUTPUT

Feed GAS OIL WATER RESIDENCE TIMES Specified ActualFlow (t/d) 250.0 1116.2 1000.0 (mins) (mins) ** WARNINGS **

11.1 829.2 972.0 Gas 10.44 secondsViscosity (cP) 0.02 5.00 0.40 HLL-HLSD 1.0 0.95 ** Warning ! Residence time insufficient **

Oil in Gas 150 NLL-HLL 1.0 0.97 ** Warning ! Residence time insufficient **

Oil in Water 1000 NLL-LLL 1.5 1.02 ** Warning ! Residence time insufficient **

Water in Oil 500 LLL-LLSD 1.0 0.86 ** Warning ! Residence time insufficient **

LLSD to Withdrawl pipe height 0.5 0.68 OK

1500 HIL-HILSD 1.0 1.3 OK

3750 NIL-HIL 1.0 1.24 OK

Max vel. in Oil out nozzle (m/s) 1.0 NIL-LIL 2.0 1.68 ** Warning ! Residence time insufficient **

Max vel. in water out nozzle (m/s) 1.0 LIL-LILSD 1.0 1.42 OK

K Value (m/s) 0.06 LILSD to Outlet 1.0 1.09 OK

95.0 NIL-Standpipe 4.1 mins Oil residence time (NLL - NIL) 4.34 mins

Water residence time (NIL-Bottom) 4.2 mins

SETTLING VELOCITY CRITERION DROPLET FALL TIMES K Factor Gas Velocity (m/s) 0.52 m/s OK Oil in Gas Top-Liquid 3.0 seconds OK

Gas Velocity (m/s) - calculated 0.46 m/s Water from Oil NLL-NIL 2.4 mins OK

Oil Droplet Velocity (m/s) - Gravity Settling Method Oil from Water Btm-NIL 0.2 mins OK

Oil from Gas 0.23 m/sWater from Oil 0.004 m/sOil from Water 0.042 m/s

NOTE: Gas Velocity Criteria are based on HLSD Height.

STANDPIPE CALCULATIONS - FROM VESSEL BASE INTERMEDIATE CALCULATIONS

WATER INTERFACE HILSD 700.00

DIST. BETWEEN WATER HILSD AND OIL OUTLET NOZZLE 117 mm 116.89 1.00 40.88 0.6

OIL OUTLET NOZZLE (STANDPIPE) ELEVATION, (Hs) 817 mm

DIST. BETWEEN OIL OUTLET NOZZLE AND OIL LLSD 50.0 mm 47.11 1.00

OIL LEVEL LLSD 867 mm

DATE and TIME PRINTED: 22-Apr-23 1:57 AM PAGE 1 OF 3

Density (kg/m3)

Droplet Size (m)Droplet Size (m)Droplet Size (m)

r.v2 max for inlet nozzle (kg/m.s2)r.v2 max for gas outlet nozzle (kg/m.s2)


TITLE

CALCULATION SHEET

PROJ.




SKETCH

Gas = 250.00 t/dInlet 938.44

Minimum Inlet nozzle ID 304 mm Length T/T= 4800 mm Minimum Gas Out Nozzle ID = 134 mm

Incremental GAS

Ht. (mm) oil HLSD 1250 mm 2.72 (Gas)

oil HLL 1150 mm 0.89 (HLL-HLSD) I. D. = oil NLL 1050 mm 0.91 (NLL-HLL) 1750 mm

oil LLL 950 mm 0.95 (NLL-LLL)

oil LLSD 867 mm 0.80 (LLL-LLSD)

0.48 (LLSD-HILSD)

Height of draw off pipe, Hs = 817 mmInterface

water HILSD 700 mm OILwater HIL 600 mm 0.93 (HIL-HILSD)

water NIL 500 mm 0.89 (NIL-HIL)

water LIL 350 mm 1.20 (NIL-LIL)

water LILSD 200 mm 1.01 (LIL-LILSD) WATER0.78 (LILSD-Outlet)

HEIGHT WARNINGSMinimum Water out nozzle ID = 123 mm

OKOK Water = 1000.00 t/d

Minimum Oil Outlet nozzle ID = 141 mm 42.87OKOK

Oil = 1116.20 t/dOK 56.09OK

NOMENCLATURE

LLL Low Liquid Level HIL High Interface LevelLIL Low Interface Level HLSD High Level Shut Down Gas viscosity Cp LLSD Low Level Shut Down HILSD High Interface Level Shut Down Settling Velocity m/sLILSD Low Interface Level Shut Down Proportionality constant, dimensionless. Maximum vapour velocity m/sNLL Normal Liquid Level Hs Height of Standpipe, mm K Design vapour velocity factor m/s

NIL Normal Interface LevelHLL High Liquid Level


Am3/h

Vol. (m3)

m3/h

m3/h


KCR VMAX



TITLE

CALCULATION SHEET PROJ.




CALCULATIONS Cont'd)

SETTLING VELOCITIES Oil in Gas (Gravity Settling Laws method)Oil From Gas ("K" Value method) Particle size calc for determination of appropriate law

K Value, m/s 0.06

Max allowable velocity,Vmax 0.52 m/s Settling Velocity 0.23 m/s

Gas Horiz. Velocity 0.46 m/s Settling Law Used Intermediate Law


Actual Gas Velocity OK (m/s)

Stoke's Law 0.03 0.62 47

Intermediate Law 0.33 0.23 621

Newton's Law 18.13 0.57 33733 Oil in Water (Gravity Settling Laws method)Particle size calc for determination of appropriate law Water in Oil (Gravity Settling Laws method)

Particle size calc for determination of appropriate law

Settling Velocity 0.042 m/s

Settling Law Used Intermediate Law Settling Velocity 0.004 m/s

Law Used: Kcr Vt Dp max Settling Law Used Stoke's Law

(m/s) Law Used: Kcr Vt Dp max

Stoke's Law 0.03 0.195 168 (m/s)

Intermediate Law 0.33 0.042 2248 Stoke's Law 0.03 0.004 906

Newton's Law 18.13 0.07 122026 Intermediate Law 0.33 0.006 12108

Newton's Law 18.13 0.051 657243

NOTES

1.

Equations for Stokes Law, Intermediate Law and Newtons Law are taken from GPSA Handbook, Volume 1, Section 7.

Figure 7.4

2. Maximum allowable vapour velocity is calculated from the equation in GPSA Handbook, Volume 1, Section 7:

3. Settling times for water and oil are based on the normal interface level (NIL).

4. Information for partial volumes and dished ends was from GPSA handbook Section 6, and in particular, fig. 6-21,6-22.

5. Calculations for gas residence time and area/volume calculations use the NLL height as the height basis. End volumes ignored for gas volume calculations.


(m)

(m)

(m)


Vt = 1488 g Dp2 (rl - rv) Vt = 3.54*g0.71 Dp1.14 (rl - rv)0.71 Vt = 1.74 * SQRT(g Dp (rl-rv) / rv )

18m rv0.29 * m0.43

VMAX = K [ (rl - rl) / rl ] 0.5

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.see note 1

TITLE




CALCULATION FOR SUMP TANK T-2Y40

INPUT OUTPUT

Feed GAS Mixed Liquid RESIDENCE TIMES Specified Actual

Flow (t/d) 42.6 0.1 (mins) (mins) ** WARNINGS **

1.10 853 Gas (seconds) 3

Viscosity (cP) 0.01 2.39 HLL-HLSD 1.0 2380.3 OK

Oil in Gas 300 NLL-HLL 1.0 2464.2 OK

6000 NLL-LLL 1.0 5978.0 OK

3750 LLL-LLSD 1.0 3446.1 OK

Max vel. in Oil out nozzle (m/s) 1.00 LLSD to bottom 0.5 10914.7 OK

K Value (m/s) 0.08

1 SETTLING VELOCITY CRITERION (m/s)

Maximum allowable Gas Velocity (m/s) 2.27 OK

Gas Horiz. Velocity (m/s) - calculated 1E+00

NOTE: Gas velocity critera all based on HLSD Oil Droplet Velocity (m/s) 1.16

(Gravity Settling Method)Droplet fall time (seconds) 0.5 OK

CALCULATIONS

SETTLING VELOCITIESOil From Gas ("K" Value method) Oil from Gas (Gravity Settling Laws method)K Value 0.08 m/s Particle size calc for determination of appropriate law

2.27 m/sGas Horiz. Velocity 1.10 m/s Settling Velocity 1.16 m/s

Minimum Vessel Diameter 501 mm Settling Law Used Intermediate Law


(m/s)

Stoke's Law 0.03 3.48 82

Intermediate Law 0.33 1.16 1089

Newton's Law 18.13 2.63 59113

NOTE: Equations for Stoke's Law, Intermediate Law and Newton's Law are taken from GPSA Handbook, Volume 1, Section 7,Figure 7.4. Results of these calculations will not be used for Sump Tank Sizing.

THAI NIPPON STEEL ENGINEERING & CONSTUCTION CO., LTD


Density (kg/m3)

Droplet Size (m)




Max Allowable Velocity,Vmax

Stoke's Law (Kcr = 0.025) Intermediate Law (Kcr = 0.334) Newton's Law (Kcr = 18.13) (m)

Vt = 1488 g Dp2 (rl - rv) Vt = 3.54*g0.71 Dp

1.14 (rl - rv)0.71 Vt = 1.74 * SQRT(g Dp (rl-rv) / rv )

18m rv0.29 * m0.43

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.

TITLE

PROJ.

DOCUMENT NUMBER

BONGKOT 3F

CALCULATION FOR SUMP TANK (T-2Y40)

THAI-3F-GEN-11-07-0002DATERev. BY CHECKAPPR.

10

12

23.08.06

DESCRIPTION

ISSUED FOR COMMENTS

11 29.09.06 APPROVED FOR DESIGN

SUP PJ

APPROVED FOR DESIGN

SUP PJ

16.03.07 AUT SKP


CALCULATION FOR SUMP TANK T-2Y40

SKETCH

42.6 t/d Inlet Minimum Gas = 1612.73

Gas OutletMinimum Inlet nozzle ID Length T/T= 3050 mm Nozzle ID = 99 mm

88 mm

GAS HeightHLSD 650 mm 1.24 (Gas)

I. D. = HLL 600 mm 0.19 (HLL-HLSD)

1130 mm NLL 550 mm 0.20 (NLL-HLL)

LLL 425 mm 0.5 (NLL-LLL)

LLSD 350 mm 0.28 (LLL-LLSD)

0.89 (LLSD-Btm)

LIQUID

Minimum Mixed Liquid = 0.1 t/dMixed Liquid Outlet 0.00

Nozzle ID = 50 mm

NOMENCLATURE

LLL Low Liquid LevelLLSD Low Level Shut Down Gas viscosity CpNLL Normal Liquid Level Settling Velocity m/sHLL High Liquid Level Maximum vapour velocity m/sHLSD High Level Shut Down K Design vapour velocity factor m/s Btm Bottom Proportionality constant, dimensionless.

g Gas constant

Upper Particle Size Limit

THAI NIPPON STEEL ENGINEERING & CONSTUCTION CO., LTD

DATE AND TIME PRINTED: 22-Apr-23 1:57 AM AGE 2 OF 2

Am3/h

Vol. (m3)

Note : Working Condition Volume (LAL-LAH) = 3.8 m3 m3/h


VMAX

KCR


rv Vapour density kg/m3 Dmax

DATERev. BY CHECK APPR.

10 23.08.06

DESCRIPTION

TITLE

PROJ.

DOCUMENT NUMBER

BONGKOT 3F

CALCULATION FOR SUMP TANK (T-2Y40)

THAI-3F-GEN-11-07-0002

ISSUED FOR COMMENTS


SUP PJ


SUP PJ


SKPAUT

VERTICAL SEPARATOR (2 phase)

INPUT PRODUCTION SEPARATOR OUTPUT

Feed GAS LIQUID RESIDENCE TIMES Specified Actual ** WARNINGS **

Flow (t/d) 11401 17.6 (mins) (mins)

57.02 1051.0 HLL-HLSD 1.0 56.8 OK

Viscosity (cP) 0.01 1.796 NLL-HLL 1.5 56.8 OK

Oil in Gas 300 NLL-LLL 1.5 56.8 OK

0.10 LLL-LLSD 1.0 56.8 OK

5000 LLSD to bottom 1.0 113.5 OK

3750

Max vel. in Oil outlet nozzle (m/s) 1.00 SETTLING VELOCITY CRITERION

57.10 K Factor Gas Velocity (m/s) 0.42 OK

Choose Dished end shape by clicking on arrow. Gas Velocity (m/s) - calculated 0.35

See note 6 Oil Droplet Velocity (m/s) 0.39 OK

Gravity Settling Method

CALCULATIONS

LIQUID / VAPOUR SEPARATIONK Value Method Oil from Gas (Gravity Settling Laws method)(Note 2) Particle / droplet size calc for determination of appropriate lawK Value 0.10 m/sMax allow. Velocity (Vmax) 0.42 m/s Settling Velocity 0.39 m/s

Gas Velocity 0.35 m/s Settling Law Used Newton's LawMinimum Vessel Diameter 2656 mm Law Used: Kcr Vt Dp maxActual Gas Velocity OK (m/s)

Stoke's Law 0.03 3.69 22 Intermediate Law 0.33 0.40 296 Newton's Law 18.13 0.39 16049


Density (kg/m3)

Droplet Size, (m)

K Value (m/s) from mist extractor data GPSA fig.7.9




(m)


Vt = 1488 g Dp2 (rl - rv) Vt = 3.54*g0.71 Dp1.14 (rl - rv)0.71 Vt = 1.74 * SQRT(g Dp (rl-rv) / rv )

18m rv0.29 * m0.43

TITLE

CALCULATION SHEET

PROJ.



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.

PRODUCTION SEPARATOR

SV


2001 - KGD6 - D1 - PF - B - PRR - 402


SKETCH

Min Gas Outlet Gas = 11400.84 t/d

Nozz. Size = 603 mm 8331.02

Calculated Total 300 mm

T/T Height: 4012 mm

consider 4000 mm with L/D of approx 100 mm Wire Mesh Demister

1.4

ID=2900mm

1740 mm (Note 4)

Inlet GAS1122 mm (Note 5)

Min Inlet Nozzle Size = 561 mm150 mm (Note 2)

HLSD 600 mm Volume increment

NOMENCLATURE HLL 500 mm 0.66

LLSD Low Level Shut Down

LLL Low Liquid Level 0.66

NLL Normal Liquid Level NLL 400 mm

HLL High Liquid Level

HLSD High Level Shut Down OIL 0.66

g Gas constant

Dmax Upper Particle Size Limit LLL 300 mm

LLSD 200 mm (Note 3) 0.66

Volume to LLSD including dished end = 4.51

Gas viscosity Cp

Settling Velocity (m/s)

Maximum vapour velocity (m/s)

K Design vapour velocity factor (m/s) Min Liquid Outlet Oil = 17.61 t/d

Proportionality constant, dimensionless. Nozz. Size = 50 mm 0.70


Am3/h

m3

m3

m3

rL Liquid density (kg/m3) m3

rV Vapour density (kg/m3) m3

Dp Droplet diameter (m)m

Vt

VMAX

KCR m3/h

TITLE

CALCULATION SHEET

PROJ.




SV


2001 - KGD6 - D1 - PF - B - PRR - 402


CALCULATIONS Cont'd

AREA & VOLUME INFORMATION Area Cylinder Volume + Volume Volume Dished Increment

GAS Cross Sectional Area 6.605

STORAGE (Volume from Bottom)Oil HLSD 6.605 3.963 7.156 0.661Oil HLL 6.605 3.303 6.495 0.661Oil NLL 6.605 2.642 5.835 0.661 Dished End Type Dished EndOil LLL 6.605 1.982 5.174 0.661 VolumeOil LLSD 6.605 1.321 4.514 1.321 (m^3)

semi-ellipsoidal 3.1933.193 hemispherical 6.385

NOTES

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

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.

6 .

Information taken from GPSA handbook Sections SI - 6, and in particular, figs. 6.21&6.22


(m2) (m3) end (m3) (m3)

VMAX = K [ (rL - rV) / rV ] 0.5

Semi-ellipsoidal end-volume is calculated using the formula V = (P x (ID)3 )/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

TITLE

CALCULATION SHEET

PROJ.



SV



2001 - KGD6 - D1 - PF - B - PRR - 402

217259464 spreadsheet to design separators

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