Lube Oils (Mineral and Synthetic)

3

Lube Oils Additives The additives are chemicals used to give the base stocks desirable characteristics which they lack or to enhance and improve existing properties. To modify viscosity to desired value To prevent the wearing of engines To aid in breaking the oil slick into smaller droplets.  To inhibit the oxidation of the lube oil To prevent foam formation. To prevent the corrosion of engines. To reduce surface tension. 4

Lube Oils Properties 5

Other Important Properties Lube Oils Properties: Other Important Properties Usually the dispersant and detergent additives are formulated to include alkaline materials which serve to neutralize the acid contaminants.

Mineral Lube Oil Processing 7

sent directly to the solvent extraction units PROPANE DEASPHALTING The lighter distillate feed stocks for producing lubricating oil base stocks can be sent directly to the solvent extraction units Atmospheric and vacuum bottom products require deasphalting to remove the asphaltenes and resins before undergoing solvent extraction. Propane usually is used as the solvent in deasphalting Propane has unusual solvent properties in that from 40 to 60°C paraffins are very soluble in propane. 8

Finishing 11

Lube Oils Blending

Synthetic Oil

14

15

in presence of hydrogen.

Lube Oils: Final Remarks

End of Lube Oils