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Crude Oil Assay Model with separate fractions i.e. Whole crude, Gasoil, LPG, VGO, Naphtha, Kerosene, and Vacuum Residue etc.

CRUDE OIL ASSAY MODEL WITH INDIVIDUAL FRACTIONS
Whole Crude
Parameters Test Methods
Density@15°C, Kg/L
API Gravity @ 60°F, °API
Acid Number,Total,
mg KOH/g
Bromine No on 360°C
Fraction, g Br2/100g
Existant H2S, mg/kg
Mercury, μg/kg
Pour Point, °C
RVP @ 100°F, psi
Salt Content, ptb
Sulphur, mass%
Viscosity, Kinematic@ 50°C,cSt
ASTM D 1298
Conversion
ASTM D 664

ASTM D 1159

UOP 163
AAS Cold Vapor
ASTM D 97
ASTM D 323
ASTM D 32
ASTM D 4294
ASTM D 445
NAPHTHA FRACTION
Parameters Test Methods
Yield by mass
Yield by volume
API Gravity @ 60°F, °API
Density @ 15°C, Kg/L
Mercaptan Sulphur, mg/kg
Sulphur, mass%
Mercury, μg/kg
ASTM D 2892

Conversion
ASTM D 1298
ASTM D 3227
ASTM D 4294
AAS Cold Vapor
VACUUM RESIDUE FRACTION
Parameters Test Methods
Yield by mass
Yield by volume
API Gravity @ 60°F, °API
Density @ 15°C, Kg/L
Asphaltenes, mass%
Micro Carbon Residue,
mass%
Sulphur, mass%
Viscosity, Kinematic
@ 100°C, cSt
ASTM D 2892

Conversion
ASTM D 1298
IP 143
ASTM D 4530

ASTM D 4294
ASTM D 445
GASOIL FRACTION
Parameters Test Methods
Yield by mas
Yield by volume
API Gravity @ 60°F,
°API
Density @ 15°C, Kg/L
Cetane Index
Sulphur, mass%
Total Nitrogen, mg/kg
ASTM D 2892
ASTM D 2892
Conversion

ASTM D 1298
ASTM D 976
ASTM D 4294
ASTM D 4629
LPG FRACTION
Parameters Test Methods
Yield by mas
Yield by volume
Mercaptan Sulphur,
mg/kg
Free H2S, mg/kg
ASTM D 2892
ASTM D 2892
In-House

VGO FRACTION
Parameters Test Methods
Yield by mass
Yield by volume
API Gravity @ 60°F, °API
Density @ 15°C, Kg/L
Acid Number, Total,
mg KOH/g
Micro Carbon Residue,
mass%
Nickel, mg/kg
Vanadium, mg/kg
Sulphur, mass%
Total Nitrogen, mg/kg
UOP K Value
ASTM D 2892

Conversion
ASTM D 1298
ASTM D 974

ASTM D 4530

AAS

ASTM D 4294
ASTM D 4629
Calculation
KEROSENE FRACTION
Parameters Test Methods
Yield by mass
Yield by volume
API Gravity @ 60°F, °API
Density @ 15°C, Kg/L
Colour, Saybolt (Initial)
(After 24 hrs)
Mercaptan Sulphur, mg/kg
Smoke Point, mm
Sulphur, mass%
ASTM D 2892

Conversion
ASTM D 1298
ASTM D 156

ASTM D 3227
ASTM D 1322
ASTM D 4294
Crude Oil Test Format
Parameters Test Method Whole Sample LPG NAPHTHA KEROSENE GAS OIL VGO VR
Upto C5 C5-140°C 140-245°C 245-355°C 355-545°C 545°C +
Yield by mass D2892/D5236
Yield by Volume D2892/D5236
API Gravity @60°F, °API Conversion
Density @ 15°C, Kg/L D1298/D4052
Acid Number, Total,
mg KOH/g
IP 143
Bromine No on 360°C Fraction,
g Br2/100g
D 1159
Carbon Residue(MCRT),
mass%
D 4530
Cetane Index D 976
Colour, Saybolt (Initial)/
After 24 hrs
D 156
Existant H2S, mg/kg UOP 163
Mercaptan Sulphur, mg/kg D 3227 /
In-House
Pour Point, °C D 97
RVP @ 100°F, psi D 323
Salt Content, ptb D 3230
Sulphur, mass% D 4294
Smoke Point, mm D 1322
Viscosity,Kinematic@50°C, cSt D 445
Viscosity,Kinematic@100°C, cSt D 445
Vanadium, mg/kg AAS
Nickel, mg/kg AAS
Mercury, μg/kg AAS Cold Vapor
Free H2S, mg/kg In-House
Total Nitrogen, mg/kg D 4629
UOP K Calculation

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