Viscosity prediction of hydrocarbon mixtures based on the friction theory

The application and capability of the friction theory (f-theory) for viscos ity predictions of hydrocarbon fluids is further illustrated by predicting the viscosity of binary and ternary liquid mixtures composed of n-alkanes r anging from n-pentane to n-decane for wide ranges of temperature and from l ow to high pressures. In the f-theory viscosity predictions the SRK and the PRSV EOS have respectively been used. Further, a comparison with the widel y used LBC viscosity model shows that better results are obtained with the f-theory models. The obtained AAD% is within or close to the experimental u ncertainty, which is satisfactorily for most applications related to the oi l industry.