Phase Equilibria of Polydisperse Square-Well Chain Fluid Confined in Random Porous Media: TPT of Wertheim and Scaled Particle Theory

2018 ◽  
Vol 122 (21) ◽  
pp. 5458-5465 ◽  
Author(s):  
Taras V. Hvozd ◽  
Yurij V. Kalyuzhnyi ◽  
Peter T. Cummings
Keyword(s):  
Porous Media ◽  
Phase Equilibria ◽  
Scaled Particle Theory ◽  
Particle Theory ◽  
Square Well ◽  
Random Porous Media

Fluids in random porous media: Scaled particle theory

2012 ◽  
Vol 85 (1) ◽  
pp. 115-133 ◽  
Author(s):  
Myroslav Holovko ◽  
Taras Patsahan ◽  
Wei Dong
Keyword(s):  
Porous Media ◽  
Thermodynamic Properties ◽  
Hard Sphere ◽  
Chemical Potential ◽  
Critical Density ◽  
Critical Parameters ◽  
Scaled Particle Theory ◽  
Particle Theory ◽  
Confined Fluid ◽  
Random Porous Media

The scaled particle theory (SPT) is applied to describe thermodynamic properties of a hard sphere (HS) fluid in random porous media. To this purpose, we extended the SPT2 approach, which has been developed previously. The analytical expressions for the chemical potential of an HS fluid in HS and overlapping hard sphere (OPH) matrices, sponge matrix, and hard convex body (HCB) matrix are obtained and analyzed. A series of new approximations for SPT2 are proposed. The grand canonical Monte Carlo (GGMC) simulations are performed to verify an accuracy of the SPT2 approach combined with the new approximations. A possibility of mapping between thermodynamic properties of an HS fluid in random porous media of different types is discussed. It is shown that thermodynamic properties of a fluid in the different matrices tend to be equal if the probe particle porosities and the specific surface pore areas of considered matrices are identical. The obtained results for an HS fluid in random porous media as reference systems are used to extend the van der Waals equation of state to the case of a simple fluid in random porous media. It is observed that a decrease of matrix porosity leads to lowering of the critical temperature and the critical density of a confined fluid, while an increase of a size of matrix particles causes an increase of these critical parameters.

Scaled Particle Theory for Multicomponent Hard Sphere Fluids Confined in Random Porous Media

2016 ◽  
Vol 120 (24) ◽  
pp. 5491-5504 ◽  
Author(s):  
W. Chen ◽  
S. L. Zhao ◽  
M. Holovko ◽  
X. S. Chen ◽  
W. Dong
Keyword(s):  
Porous Media ◽  
Hard Sphere ◽  
Scaled Particle Theory ◽  
Particle Theory ◽  
Random Porous Media

Hard convex body fluids in random porous media: Scaled particle theory

2014 ◽  
Vol 189 ◽  
pp. 30-38 ◽  
Author(s):  
Myroslav Holovko ◽  
Volodymyr Shmotolokha ◽  
Taras Patsahan
Keyword(s):  
Porous Media ◽  
Convex Body ◽  
Body Fluids ◽  
Scaled Particle Theory ◽  
Particle Theory ◽  
Random Porous Media

Fluids in porous media. III. Scaled particle theory

2011 ◽  
Vol 134 (7) ◽  
pp. 074503 ◽  
Author(s):  
T. Patsahan ◽  
M. Holovko ◽  
W. Dong
Keyword(s):  
Porous Media ◽  
Scaled Particle Theory ◽  
Particle Theory
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