Hydro Cracking base oil
| Base Oil Group | Sulfur content, % | Content of saturated hydrocarbons, % | Viscosity index |
|---|---|---|---|
| Group II | ≤ 0,03 | ≥ 90 | 80-120 |
Oils II group. Hydro Cracking base oil.
The base oils of group 2 are made by performing a chemical process called hydrocracking. Their other name is highly purified oils. This is also the purification of petroleum products, but using hydrogen and under high pressure (in fact, the process is multistage and complex). The result is an almost clear liquid, which is the base oil. Its sulfur content is less than 0.03%, and they have antioxidant properties. Due to its purity, the service life of the engine oil obtained on its basis increases significantly, and deposits and carbon deposits in the engine decrease. On the basis of hydrocracking base oil make the so-called "NA-synthetics", which some experts refer to semi-synthetics. The viscosity index in this case is also in the range from 80 to 120. This group is called the English abbreviation HVI (High Viscosity Index), which literally translates as high viscosity index. The oils of the required quality are not obtained by removing undesirable components from the raw materials (as is the case with selective solvent refining, adsorption refining and hydrotreating), but by converting them into hydrocarbons of the required structure due to hydrogenation, cracking, isomerization and hydrogenolysis reactions ), which affects the stability of the resulting oils. Hydrocracking produces high-quality bases for a wide range of commercial lubricating oils: hydraulic, transformer, motor, energy, industrial, and so on. In terms of their physico-chemical properties, GC oils approach synthetic oils (PAO), with a lower production cost.
