3) heavy policikloparafīnu breaking much lighter saturated hydrocarbons. Such reactions take place

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Miner accordance le ll u manufacture dissociation the base oil treating several dissociation stages in order to improve certain properties. Parafīniskajām base oils treatment results in an increased viscosity index improves oxidation properties, thermal stability dissociation and fluidity at low temperatures.
b) distillation to obtain the required viscosity grade, impurity-ceed supply, including aromatic and polar components, selective treatment, paraffin separation to improve the flow characteristics at low temperatures;
> 0.03
oligomerizācija
Group I base oils or conventional dissociation treating with solvents, are the most common of which are currently produced pasaulē.Tās sulfur containing more than 0.03% by weight of saturated hydrocarbons dissociation and less than 90% by weight. Such oils are not as high a purity as synthetic or hydrocracking dissociation process acquired. Despite the fact that the base oil engine oil specially designed for the production of the scope of application is much wider.
Group II and III base oils are used in the production technology, the oil industry terminology is known as hydrocracking or deep hydrocracking. At the heavier dissociation oil fractions during the second stage is a split in the presence of hydrogen, thus increasing acquired more useful light petroleum products. Here the sulfur content does not exceed 0.03% by weight and the saturated hydrocarbon content is more than 90% by weight. The composition of the oil is cleaner from unwanted impurities of Group I base oil composition.
2) The resulting material is filled with vacuum column, dissociation which separates the required viscosity grade frakcijas.Tieši these fractions dissociation also cleans dissociation individually solventrafinācijas holds. Here the mixed solvent Ex. Furfural, this will remove about 70-85% aromatic hydrocarbons.
3) Next, the oil fractions deparafinizē, it is a process which is carried out by chilling chambers at low temperatures to separate the composition of the paraffins. This improves oil flow characteristics at low temperatures.
4) At the end, depending on the intended use of the scope of the requirements, dewaxed mineral dissociation often further purified to improve oil color, and give increased stability. One of the most widely used such methods of treatment is light hidrofinišs. The temperature and pressure regimes, which occurs following treatment of the hydrogen in the presence of a medium, the resulting product remaining sulfur is stable to the binding of oxygen in the air, oil color becomes bright, clear.
3) heavy policikloparafīnu breaking much lighter saturated hydrocarbons. Such reactions take place to 400 C to about 300 PSI (20 680 kPa) pressure, in the presence dissociation of a catalyst. The resultant hydrocarbon molecules possess high stability, so it is ideal for base oils.
1) The first stage of the composition will remove dissociation any trace amounts of polar compounds and aromatic hydrocarbons converts saturated. After vacuum paraffin oil very low temperature dissociation paraffin separation.
2) Next, saturated hydrocarbon content increases in oil fractions removed by the high pressure hydrotreatment unit. The conclusion of the final stage of the maximum increases the stability of the base oil, cleaning it from the remaining aromatic dissociation and polar molecules (topping balances).
Hidroizomerizācijas process uses special catalysts for selective isomerisation of paraffins. Resulting in a base oil with a higher viscosity index and improved properties compared to previous ones paraffin separation technology. This type of treatment allows you to get the base oil having a viscosity index of 130 for one cycle, but usually in such equipment dissociation producing base oils with high viscosity index of 95 to 105 (group II) or special base fluids with a viscosity index of 115 to 130 (II + and III groups). In addition, such technology has the advantage that it allows us to produce base oils with naturally very low pour point (below -25 C).
Such characteristics assigned dissociation Eļ