Improved empirical correlation for petroleum fraction composition quantitative prediction

The prediction of the composition of petroleum fractions and pure hydrocarbon mixtures is a sensitive operation. Up till now, the already developed correlations in the literature are based on experimental data of crude oils. In this work, a new method is proposed for correlations elaboration based on the use of pure hydrocarbons specific data. This technique enables the characterization of the composition (wt%), in paraffins, naphthenes and aromatics, of pure hydrocarbon mixtures and petroleum fractions issued from different crude oils, according to their physical properties that are easily accessible such as normal boiling point (Tb), density (d), refractive index (n) and carbon to hydrogen weight ratio (CH).