Optimization of structural and energy characteristics of adsorbents for methane storage
- Authors: Men’shchikov I.E.1, Fomkin A.A.1, Shkolin A.V.1, Yakovlev V.Y.1, Khozina E.V.1
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Affiliations:
- A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Issue: Vol 67, No 10 (2018)
- Pages: 1814-1822
- Section: Article
- URL: https://journals.rcsi.science/1066-5285/article/view/243078
- DOI: https://doi.org/10.1007/s11172-018-2294-1
- ID: 243078
Cite item
Abstract
Using numerical and analytical methods, a model for microporous carbon adsorbents with slit-shaped pores of different widths was developed. Such pores are formed during activation procedure by the removal of the hexagonal carbon layers burnt out in a graphite-like crystallites. Dubinin’s theory of volume filling of micropores was used to calculate methane adsorption equilibria on these model adsorbents. Isobaric dependences of methane adsorption on pore width, specific micropore volumes, and the specific surface were plotted in the range of pressures from 1 to 10 MPa. It was found that the isobaric adsorption curves had a maximum the position of which depends on both the structural-energy characteristics of the adsorbent and thermodynamic conditions chosen to operate the adsorption system. As pressure increased, the maximum of adsorption shifts to the porous systems with wider pores and larger micropore volume.
About the authors
I. E. Men’shchikov
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Author for correspondence.
Email: i.menschikov@mail.ru
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119071
A. A. Fomkin
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: i.menschikov@mail.ru
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119071
A. V. Shkolin
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: i.menschikov@mail.ru
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119071
V. Yu. Yakovlev
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: i.menschikov@mail.ru
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119071
E. V. Khozina
A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: i.menschikov@mail.ru
Russian Federation, Build. 4, 31 Leninsky prosp., Moscow, 119071