Base Oil Division
Base Oil Division
Production Flow Chart
• Feedstock is separated into distillates and vacuum gas oils
• Vacuum gas oil is sent through the hydro-cracker for conversion
• To saturate the molecules and remove impurities such as nitrogen, sulfur, oxygen and heavy metals, Hydrogen is introduced.
• Under extreme temperature and pressure in the presence of a catalyst, hydro-cracking converts aromatics molecules into saturated Paraffin.
• This process yields stock with lighter in color since the absence of contaminants.
• Long waxy paraffin molecules are restructured into shorter ones , so-Paraffin that resist gelling and improve low temperature pump-ability.
• Hydrogen is introduced again to clean up the remaining and impurities thus enhancing the oxidation and thermal stability of the final product.
VIRGIN BAES OIL PRODUCT SPECIFICATIONS
Test Units Methods 150 SN 500 SN
Density @ 15 °C ASTM-D 4052
Colour - Max ASTM-D 1500 1 2
Flash Point COC - Min°C ASTM-D 92 210 227
Flash Point PMCC - Min°C ASTM-D 93 200+ 210+
Furfural Content - Max PPMM- 1414 5 5
Pour Poin t - Max°C ASTM-D 97 -12 -6
Viscosity @ 40 °C Cst ASTM-D 445 28/31 91/101
Viscosity @ 100 °C Cst ASTM-D 445 - -
Viscosity Index - Min ASTM-D 2270 95 95
Carbon Residue - MaxWT % ASTM-D 189 - 0.1
Sulfer Content - Max WT% ASTM-D 4294 0.6 1
Neutralization No - MaxMG KOH/GM ASTM-D 664 0.05 0.05
Copper Strip Corrosion - Max100 °C/3 Hrs ASTM-D 130 1A 1A
Ash- Max WT % ASTM-D 482 0.01 0.01
Appearence - Visual C&B C&B
SPECIFICATION- RE-REFINED ( Recycled ) BASE OIL
S.NO PARAMETERS SN-150-UF SN-300-UF Test Method
1 Appearance Light Viscous Medium Viscous Visual
2 Colour 5.5 -6.0 5.5 - 6.0 cc ASTM -D 1500
3 Density at 15 deg C 0.86 - 0.88 0.87 -0.89 ASTM -D 1298
4 Viscosity at 40 deg C, Cst 28 - 32 46-50 ASTM -D 445
5 Flash point, Deg C, Min 139 201 ASTM -D 92
6 Total Acid Number, mg KOH/g < 0.05 < 0.05 ASTM -D 664
7 Crackle Test/Moisture Negative Negative
8 Pour Point. Deg C max -6 -6 ASTM -D 97
9 Copper Strip Corrossion, max 1 1 ASTM -D 130
10 Conradson Carbon Residue, % w/w <0.5 <0.5 ASTM -D 189
11 Ash Content,% w/w 0.01 0.01 ASTM -D 482
12 Sulphur Content, % w/w < 1.5 <1.5 ASTM -D 4927
Comparison of Virgin and Re-Refined (Recycled) Base Oil
BASE OIL SN500 Virgin Recycled Standard
Viscosity Index 90 100 ASTM D 2270
Flash Point deg C 230 min 215 ASTM D 92
Pour Ponit deg C -6 -3 ASTM D 97
Kinematic Viscosity @ 40 deg C CST 100 100 ASTM D445
Kinematic Viscosity @ 100 deg C CST 11 10.5 ASTM D445
Density at 15 deg C KG/L 0.885 0.88 ASTM D 4052
Color 2.5 max 4 to 6 ASTM D 1500c