Two-Phase Fluid Simulation Using a Diffuse Interface Model with Peng--Robinson Equation of State

a sequential formulation for compositional reservoirs simulation using peng robinson equation of state

Stability and Convergence Analysis of Second-order Schemes for a Diffuse Interface Model with Peng-robinson Equation of State

Qiujin Peng Institute for Mathematical Sciences, Renmin University of China, Beijing 100872, China Email: [email protected] Zhonghua Qiao Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Email: [email protected] Shuyu Sun Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, ...

Modification of the Peng-Robinson Equation of State (Generalization)

A modification of Peng-Robinson equation is described wherein in the parameter b is expressed as a linear function of temperature. The modified equation is then applied to a series of light hydrocarbons and refrigerants, and predicted values for vapor pressure, saturated vapor volume, saturated liquid volume and the heat of evaporation are compared with the corresponding experimental data. ...

Surface Tension Prediction of n-Alkanes by a Modified Peng-Robinson Equation of State Using the Density Functional Theory

Through this study, the ability of a modified Peng-Robinson (MPR) equation of state in predicting the surface tension of n-alkanes based on the density functional theory approach was investigated and compared with other studies. The interfacial layer thickness and the density profile were calculated simultaneously at different temperatures from triple point to near critical point using the modi...

High Pressure Phase Equilibrium of (Solvent + Salt + CO2) Systems by the Extended Peng-Robinson Equation of State

An extended Peng-Robinson equation of state (EPR-EOS) is used to model the vapor-liquid equilibrium (VLE) in systems containing (water + NaCl + CO2), (water + methanol + NaCl + CO2), (water + Na2SO4 + CO2) and (water + NH4Cl + CO2). The binary and ternary interaction parameters between salt and solvent are adjusted...