Combined chemical and phase equilibrium for the hydration of ethylene to ethanol calculated by means of the Peng–Robinson–Stryjek–Vera equation of state and the Wong–Sandler mixing rules

2011 ◽  
Vol 307 (1) ◽  
pp. 45-57 ◽  
Author(s):  
Mario Llano-Restrepo ◽  
Y. Mauricio Muñoz-Muñoz
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Mixing Rules

scholarly journals Pore-Scale Simulation of Confined Phase Behavior with Pore Size Distribution and Its Effects on Shale Oil Production

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1315
Author(s):  
Jingwei Huang ◽  
Hongsheng Wang
Keyword(s):  
Phase Equilibrium ◽  
Equation Of State ◽  
Pore Size Distribution ◽  
Phase Behavior ◽  
Pore Size ◽  
Size Distribution ◽  
Critical Role ◽  
Shale Oil ◽  
Pore Scale ◽  
Modified Equation

Confined phase behavior plays a critical role in predicting production from shale reservoirs. In this work, a pseudo-potential lattice Boltzmann method is applied to directly model the phase equilibrium of fluids in nanopores. First, vapor-liquid equilibrium is simulated by capturing the sudden jump on simulated adsorption isotherms in a capillary tube. In addition, effect of pore size distribution on phase equilibrium is evaluated by using a bundle of capillary tubes of various sizes. Simulated coexistence curves indicate that an effective pore size can be used to account for the effects of pore size distribution on confined phase behavior. With simulated coexistence curves from pore-scale simulation, a modified equation of state is built and applied to model the thermodynamic phase diagram of shale oil. Shifted critical properties and suppressed bubble points are observed when effects of confinement is considered. The compositional simulation shows that both predicted oil and gas production will be higher if the modified equation of state is implemented. Results are compared with those using methods of capillary pressure and critical shift.

Equation-of-State mixing rules for multicomponent mixtures: the problem of invariance

1991 ◽  
Vol 67 ◽  
pp. 31-44 ◽  
Author(s):  
Paul M. Mathias ◽  
Herbert C. Klotz ◽  
John M. Prausnitz
Keyword(s):  
Equation Of State ◽  
Mixing Rules ◽  
Multicomponent Mixtures ◽  
State Mixing

Applicability of cubic equation of state mixing rules on correlation of excess molar volume of Non-Electrolyte binary mixtures

2004 ◽  
Vol 42 (2) ◽  
pp. 147-158 ◽  
Author(s):  
Mirjana Lj. Kijevčanin ◽  
Bojan D. Djordjević ◽  
Slobodan P. Šerbanović ◽  
Ivona R. Grgurić ◽  
Aleksandar Ž Tasić
Keyword(s):  
Equation Of State ◽  
Molar Volume ◽  
Binary Mixtures ◽  
Excess Molar Volume ◽  
Mixing Rules ◽  
Cubic Equation Of State ◽  
Cubic Equation ◽  
State Mixing
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