راضیه رضوی پاریزی

Viscosity is an essential factor to characterize phase behavior of hydrocarbons. As appropriate correlations for supercritical hydrocarbons in industrial operations are not available, in the present work, two generalized correlations are proposed to estimate the viscosity of commonly used hydrocarbons (i.e. methane, ethane, propane, ibutane, n-butane, n-pentane, n-hexane, and n-heptane). Subsequently, the cubic correlation is suggested and verified by experimental data. This correlation has a few numbers of adjusting parameters, low average absolute error (in 5.41%–6.72% range) while can cover wide ranges of pressure and temperature. Consequently, results confirm great satisfactory performance and accuracy of the developedmodels to estimated supercritical fluid viscosity by applying the novel strategy.