Published: Jan. 1, 2024
Language: Английский
Published: Jan. 1, 2024
Language: Английский
Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120160 - 120160
Published: Feb. 1, 2025
Language: Английский
Citations
2Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156784 - 156784
Published: Oct. 1, 2024
Language: Английский
Citations
7Gas Science and Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 205579 - 205579
Published: Feb. 1, 2025
Language: Английский
Citations
0Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: March 2, 2025
Accurately assessing the adsorption and diffusion behaviors of H2, CH4, their mixtures are essential for estimating underground hydrogen storage (UHS). This understanding is critical safe efficient H2 in depleted shale gas reservoirs. Although kerogen has been extensively studied, adsorption-induced swelling remains unexplored UHS. In this study, we investigate mechanisms using Lagrangian Eulerian approaches analyze through molecular simulations. Our results reveal that presence cushion gases like which exhibit stronger than neglecting deformation can lead to an underestimation capacity by approximately 40%. Furthermore, increasing pressure makes behavior deviate from consistent trend observed with either or contracting depending on pore size. Simulations also predict self-diffusion coefficient porous 1 order magnitude higher CH4. These findings highlight importance incorporating flexibility into modeling UHS involving multiple species improve accuracy safety operations
Language: Английский
Citations
0Fuel, Journal Year: 2025, Volume and Issue: 392, P. 134965 - 134965
Published: March 5, 2025
Language: Английский
Citations
0Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 103502 - 103502
Published: April 1, 2025
Language: Английский
Citations
0Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: April 22, 2025
Adsorption-induced deformation has long been underappreciated in gas transport studies of microporous coal, yet it strongly influences pore configurations and diffusive pathways. Here, a hybrid grand canonical Monte Carlo (GCMC)/molecular dynamics (MD) approach equilibrium MD (EMD) simulations are employed to investigate how matrix flexibility reshapes structures and, turn, impacts CH4 CO2 self-diffusion connected networks under various loadings. The results show that coal enhances adsorption, with exhibiting greater uptake volumetric strain than CH4. A universal linear relationship emerges among loading, free volume ratio, coefficients for both rigid flexible matrices. In matrices, this linearity features gentler slope, indicating reduced diffusion sensitivity diminishing By comparing geometrical effective tortuosity, is revealed adsorbing induces significant swelling complex local rearrangements at elevated loadings, pushing tortuosity far beyond rigid-matrix levels, whereas CH4─with weaker adsorption─drives smaller, more uniform structural adjustments only mildly increase tortuosity. These differences directly reflect changes path complexity, which turn governs behavior. Collectively, the findings clarify dynamic coupling between deformation, self-diffusivity offering critical guidance enhanced recovery sequestration strategies rely on accurate modeling deformable media.
Language: Английский
Citations
0Energy, Journal Year: 2024, Volume and Issue: unknown, P. 134235 - 134235
Published: Dec. 1, 2024
Language: Английский
Citations
3Published: Jan. 1, 2024
Language: Английский
Citations
0