Szczegóły publikacji
Opis bibliograficzny
Kinetics of gaseous sorbate accumulation and emission processes from a porous medium - is the diffusion coefficient a materials constant? / Katarzyna Kozieł, Aleksandra Gajda, Marta Skiba, Magdalena HABRAT, Mateusz ZARĘBA, Petr Hlaváček, Juliusz Topolnicki, Norbert SKOCZYLAS // Archives of Mining Sciences = Archiwum Górnictwa ; ISSN 0860-7001 . — 2026 — vol. 71 no. 2, s. 245–267. — Bibliogr. s. 265–267, Abstr.
Autorzy (8)
- Kozieł Katarzyna A.
- Gajda Aleksandra
- Skiba Marta
- AGHHabrat Magdalena
- AGHZaręba Mateusz
- Hlaváček Petr
- Topolnicki Juliusz
- AGHSkoczylas Norbert
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 170228 |
|---|---|
| Data dodania do BaDAP | 2026-10-13 |
| Tekst źródłowy | URL |
| DOI | 10.24425/ams.2026.158816 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Archives of Mining Sciences = Archiwum Górnictwa |
Abstract
the kinetics of sorption and diffusion processes in porous materials significantly influence applications such as greenhouse gas capture, toxic gas removal, and geological storage. this study investigates whether the diffusion coefficient, a critical parameter in describing these processes, can be treated as a material constant. Experimental analyses were conducted using hard coal samples subjected to methane sorption under controlled conditions. numerical and analytical models were developed, incorporating linear and langmuir sorption isotherms, to simulate the diffusion and sorption processes. results indicate that as-suming a linear isotherm allows for satisfactory modelling in low-density sorbate regions but introduces artefacts at higher densities, where the langmuir isotherm provides superior accuracy. the numerical model, validated against analytical solutions, demonstrates high precision in extracting diffusion coef-ficients and isotherm parameters, highlighting the interdependence of sorption kinetics and equilibrium conditions. these findings emphasise the need for advanced modelling techniques to accurately characterise diffusion in complex porous systems and establish the diffusion coefficient as a robust material property.
