Critical temperature shift modeling of confined fluids using pore-size-dependent energy parameter of potential function.

ABSTRACT: The behavior and critical properties of fluids confined in nanoscale porous media differ from those of bulk fluids. This is well known as critical shift phenomenon or pore proximity effect among researchers. Fundamentals of critical shift modeling commenced with developing equations of state (EOS) based on the Lennard-Jones (L-J) potential function. Although these methods have provided somewhat passable predictions of pore critical properties, none represented a breakthrough in basic modeling. In this study, a cubic EOS is derived in the presence of adsorption for Kihara fluids, whose attractive term is a function of temperature. Accordingly, the critical temperature shift is modeled, and a new adjustment method is established in which, despite previous works, the bulk critical conditions

SUBMITTER: Humand M 

PROVIDER: S-EPMC10039086 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature