Journal ArticleDOI
One possible formulation of the thermodynamics of sorption equilibrium
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TLDR
In this paper, the Clausius-Clapeyron and Kirchhoff formulas are replaced with the variables in the thermodynamic functions for a cylinder filled with gas and closed with a piston, within which the sorbent is included.Abstract:
1.
To obtain the basic functions of the thermodynamics of Sorption equilibrium there is no need to separate the entire sorbate into gas and sorption phases.
2.
The thermodynamics of sorption equilibrium can be represented as the result of replacement of the variables in the thermodynamic functions for a cylinder filled with gas and closed with a piston, within which the sorbent is included.
3.
The method of replacement of variables makes the relationship of functions of the type of Clausius-Clapeyron and Kirchhoff formulas, used in the thermodynamics of sorption, to the axioms of thermodynamics more graphic, and also permits a refinement of the thermodynamic meaning of these functions.read more
Citations
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Journal ArticleDOI
Adsorption accumulation of natural gas based on microporous carbon adsorbents of different origin
I. E. Men’shchikov,A. A. Fomkin,A. Yu. Tsivadze,A. V. Shkolin,E. M. Strizhenov,E. V. Khozina +5 more
TL;DR: In this paper, the effectiveness of adsorption accumulation was analyzed in terms of structural and energy characteristics, packing density and thermodynamic parameters of methane adaption, and the effects of increased packing density, proper shape of adsorbent material on the adsoption accumulation efficiency were considered.
Journal ArticleDOI
Thermodynamics of Adsorbed Methane Storage Systems Based on Peat-Derived Activated Carbons.
TL;DR: The higher micropore volume and structural heterogeneity of the more activated AC-6 compared to AC-4 determine its superior methane adsorption performance.
Journal ArticleDOI
Adsorption-Based Hydrogen Storage in Activated Carbons and Model Carbon Structures
A. A. Fomkin,Anatoly Pribylov,I. E. Men’shchikov,A. V. Shkolin,O. E. Aksyutin,A. G. Ishkov,Konstantin V. Romanov,E. V. Khozina +7 more
TL;DR: In this paper, the experimental data on hydrogen adsorption on five nanoporous activated carbons (ACs) of various origins measured over the temperature range of 303-363 K and pressures up to 20 MPa were compared with the predictions of hydrogen density in the slit-like pores of model carbon structures calculated by the Dubinin theory of volume filling of micropores.
Journal ArticleDOI
Methane adsorption on microporous carbon adsorbent with wide pore size distribution
A. A. Fomkin,I. E. Men’shchikov,A. A. Pribylov,V. V. Gur’yanov,A. V. Shkolin,D. S. Zaitsev,A. V. Tvardovskii +6 more
TL;DR: In this paper, a microporous carbon adsorbent with a bimodal pore size distribution is studied at temperatures of 303-333 K at pressures up to 30 MPa.
Journal ArticleDOI
Thermodynamic Behaviors of Adsorbed Methane Storage Systems Based on Nanoporous Carbon Adsorbents Prepared from Coconut Shells.
I. E. Men’shchikov,A. V. Shkolin,A. V. Shkolin,Evgeny M. Strizhenov,Evgeny M. Strizhenov,E. V. Khozina,S. S. Chugaev,S. S. Chugaev,Andrey A. Shiryaev,A. A. Fomkin,A. A. Zherdev +10 more
TL;DR: Both the experiments and mathematical modeling showed that the thermal regulation of the ANG storage tank ensured the higher rates of charge/discharge processes compared to the thermal insulation.
References
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Journal ArticleDOI
Thermodynamics of Adsorption
TL;DR: In this paper, the thermodynamics of the adsorption of gases on solids is developed in terms of a two-component system, and the ideal process: i(gas) → i(adsorbed) is introduced and discussed; thermodynamic functions appropriate to the process are defined.