Thermodynamic consistency assessment of gas hydrates dissociation conditions in porous media
Year: 2023
Type: article
Abstract: The basis of gas hydrates exploitation is to faze the equilibrium status of gas hydrate and liberate the trapped gas. Therefore, the gas hydrates thermodynamic equilibria in the porous media takes a leading role in the case of hydrate-bearing sediments (HBS) as a great energy resource. Abundant experimental investigations and theoretical studies have been performed to measure or calculate the dissociation conditions of gas hydrates in porous media. From the experimental point of view, several scientific groups performed diverse experimental techniques and procedures. Accordingly, some types of experimental errors may be generated through experimental measurements. Consequently, the utilization of consistent data is necessary for the development of thermodynamic models and the identification of the physicochemical properties of gas hydrates in porous media. This work aimed at proposing a meticulous method to specify the thermodynamic consistency of gas hydrates dissociation conditions in porous media. Fundamental thermodynamic equations are put to service to determine the consistency criteria including the heat of hydrate dissociation and the water activity in the aqueous/liquid phase. The quantitative consistency test outputs are illustrated for each thermodynamic consistency test. It is concluded that 9.33% (43 out of 461), 1.74% (8 out of 461), 1.52% (7 out of 461), and 39.48% (182 out of 461) of the experimental data fail in the first, second, third, and fourth thermodynamic consistency tests, respectively.
Source: Fluid Phase Equilibria
Authors: Ebrahim Moradi, Jafar Javanmardi, Ali Rasoolzadeh, Amir H. Mohammadi
Language: English
Subfield: Environmental Chemistry
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,760
Funder: Shiraz University of Technology
OpenAlex ID: W4386573480