| Autor: |
Zakirov, T. R., Khramchenkov, M. G., Kolchugin, A. N., Galeev, A. A. |
| Zdroj: |
Lobachevskii Journal of Mathematics; Oct2023, Vol. 44 Issue 10, p4498-4506, 9p |
| Abstrakt: |
This paper presents a study of the dynamic adsorption of gas (methane) with single-phase flows in porous media. The purpose is to determine the effect of grain size distribution on dynamic adsorption at different ratios between inter- and intraparticle diffusion coefficients. The findings of this paper have been obtained using lattice Boltzmann equations and "computational rock physics" technology, which involves numerical simulations on binary images of porous structures. The results showed that grain size distribution and the ratio between inter- and intraparticle diffusion coefficients are factors affecting dynamic adsorption. It has been established that at low ratios between diffusion coefficients, dynamic adsorption is determined by surface adsorption and does not depend on grain size distribution. At high ratios, an increase in the standard deviation contributes to a slowdown in the total dynamic adsorption. In addition, it has been found that an increase in the variety of grain sizes promotes a significant decrease in the prediction reliability of the adsorption dynamics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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