Base Oil

Base oils are used to manufacture products including lubricating greases, motor oil and metal processing fluids. Different products require different compositions and properties in the oil. One of the most important factors is the liquid’s viscosity at various temperatures. Whether or not a crude oil is suitable to be made into a base oil is determined by the concentration of base oil molecules as well as how easily these can be extracted.Base oil is produced by means of refining crude oil. This means that crude oil is heated in order that various distillates can be separated from one another. During the heating process, light and heavy hydrocarbons are separated – the light ones can be refined to make petrol and other fuels, while the heavier ones are suitable for bitumen and base oils.There are large numbers of crude oils all around the world that are used to produce base oils. The most common one is a type of paraffinic crude oil, although there are also naphthenic crude oils that create products with better solubility and very good properties at low temperatures. By using hydrogenation technology, in which sulfur and aromatics are removed using hydrogen under high pressure, you can obtain extremely pure base oils, which are suitable when quality requirements are particularly stringent.Chemical substances – additives – are added to the base oil in order to meet the quality requirements for the end products in terms of, for example, friction and cleaning properties. Certain types of motor oils contain more than twenty percent additives.

SN 500
ويژگيواحدروش آزموننتيجه
ظاهر-Visualروشن و شفاف
رنگ- ASTM D-1500حداكثر 2
گرانروي كينماتيك در C° 100mm2/s (cSt) ASTM D-445حداقل 10.8
شاخص گرانروي(VI)- ASTM D-2270حداقل 87
نقطه اشتعال°C ASTM D-92حداقل 235
نقطه ریزش°CASTM D-97حداكثر 3-
درصد تبخير مواد فرار در 250 oCwt %ASTM-D-5800حداكثر 5
High VI SN500
ويژگيواحدروش آزموننتيجه
ظاهر-Visualروشن و شفاف
رنگ- ASTM D-1500حداكثر 1
گرانروي كينماتيك در C° 100mm2/s (cSt) ASTM D-44510.5-11.9
شاخص گرانروي(VI)- ASTM D-2270حداقل 90
نقطه اشتعال°C ASTM D-92حداقل 245
نقطه ریزش°CASTM D-97حداكثر6 -
High VI SN600
ويژگيواحدروش آزموننتيجه
ظاهر-Visualروشن و شفاف
رنگ- ASTM D-1500حداكثر 1.5
گرانروي كينماتيك در C° 100mm2/s (cSt) ASTM D-445حداقل 12
شاخص گرانروي(VI)- ASTM D-2270حداقل 90
نقطه اشتعال°C ASTM D-92حداقل 246
نقطه ریزش°CASTM D-97حداكثر 6-
درصد تبخير مواد فرار در 250 oCwt %ASTM-D-5800حداكثر 3
ویژگیواحدروش آزموننتیجه
گرانروی کینماتیک در C° 100 (Typical)mm2/s (cSt) ASTM D-4454.36
گرانروی کینماتیک در C° 40 (Typical)mm2/s (cSt) ASTM D-44520.3
شاخص گرانروی(VI)، (Typical)- ASTM D-2270124.9
دانسیته در C° 15.6 (Typical)Kg/m3ASTM D-4052836.4
نقطه اشتعال (حداقل)°C ASTM D-92210
نقطه ریزش (حداکثر)°CASTM D-979-
TAN (Typical)mg KOH/grASTM D-6640.03
میزان گوگرد (Typical)ppmASTM D-3227200
Noack (Typical)W%ASTM D-580015.4
درصد ترکیبات اشباع (Typical)W%SARA analysis98
درصد ترکیبات آروماتیک (Typical)W%SARA analysis2
درصد آب (حداکثر)W%ASTM D-13640.02
میزان فوم (Typical)-ASTM D-8920/100   0/10   0/110
جداپذیری آب (Typical)secIP1957
جداپذیری آب (Typical)minASTM D-14012
باقیمانده کربن (CCR)، )حداکثر)W%ASTM D-1890.05
رنگ (Typical)-ASTM D-15000.1
CCS @ -15oC (Typical)mPa.sASTM D-5293996
CCS @ -25oC (Typical)mPa.sASTM D-52931620
CCS @ -35oC (Typical)mPa.sASTM D-52938412

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