Modified SPHCT equation of state for improved predictions of equilibrium and volumetric properties of pure fluidsSPHCT EOSEquilibriumVolumetric propertiesThe modified SPHCT equation of state is compared with the orginal version and with the Peng-Robinson (PR) equation using experimental data for a ...
Until recently, we have presented volumetric properties of pure ionic liquids and their mixtures with an alcohol (methanol or ethanol) over a wide range of temperature and pressure [14], [15], [16], [17]. Our research is mainly focused on ionic liquids based on alkyl-substituted imidazolium...
A review is made of the development of the principle of corresponding states and the utility of the molecular shape factor method for the description of properties of pure fluids and fluid mixtures. From consideration of angle averaging ... RA Mentzer,RA Greenkorn,KC Chao - 《Separation Science...
for calculating the compressibility factor of pure components has been extended to lower temperatures in the region where Tr is from 0.5 to 0.80 and Pr is from 0 to 9. The compressibility-factor is expressed linearly in the acentric factor Z = Z(0) + Z(1) with values of Z(0) and Z...
fluidsgasesmixingnumericalsvolumeA method is presented, based on an extended theorem of corresponding states, to estimate the volumetric properties of pure, nonpolar, or slightly polar fluids with an accuracy of approximates 2% or better. (W.L.H.)doi:10.1002/aic.690040421...
PC-SAFT EoS was successfully used to adjust the vapor pressure and liquid density of pure fluids, and was used predictively to correctly obtain the density of the mixture. Laplace's rule was used to predict the refractive index of mixtures....
A sapphire tube cell is also used to determine the pure component vapour pressures. Using the experimental density values and critical divergence theory concerning density difference between the liquid and vapour phases on the coexistence curve, the critical properties and the phase diagram can be ...
Densities of pure kerogen isolates were determined using density gradient centrifugation. Best estimates were derived for the composition of petroleum as a function of maturity. The PVTX properties of the petroleum were derived using PVTSim v.10. Combining the kerogen density data with the petroleum...
The volumetric gas-liquid mass transfer coefficient, kLa, is impacted by the fluid properties as well as the velocities in the reactor. Hence, appropriate changes in the reactor geometry can be made in order to adapt the velocities in the reactor and attain very high values of the kLa, ...
Pure compoundMixtureCubic equations of state are commonly used by the petroleum industry for predicting the phase behavior and the volumetric properties of hydrocarbon fluids. However, the volumetric estimates are not as accurate as vapor鈥搇iquid equilibrium ones. The present work aims at improving ...