Toward a possibility to exchange CO2 and CH4 in sI clathrate hydrates

The Journal of Physical Chemistry. B
K S GlavatskiyS Kjelstrup

Abstract

We study the thermodynamic conditions for exchange of CH(4) with CO(2) in sI clathrate hydrates using Grand Canonical Monte Carlo simulations. From the variations in the Helmholtz energy, we suggest a thermodynamic path for exchange of CH(4) by CO(2). The results can be understood from single-component occupancy isotherms. Simulations of pure component systems show that all methane sites are essentially equivalent, whereas carbon dioxide distinguishes between two types of sites, large or small. Mixture of CO(2) and CH(4) in the clathrate can be regarded as ideal, as long as only the large sites are occupied. A strong preference in selectivity is demonstrated for methane when the smaller sites become filled. The Helmholtz energies of the hydrate with a CO(2)-CH(4) gas mixture for temperatures between 278 and 328 K and pressures between 10(4) and 10(9) Pa indicate that there exists a region of stability of a mixed hydrate referred to single-component hydrates.

References

Jul 23, 2004·The Journal of Chemical Physics·Steven W Rick
Apr 20, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·Manohar Murthi, Randall Q Snurr
May 29, 2007·The Journal of Physical Chemistry. B·S J Wierzchowski, P A Monson
Jul 7, 2007·Physical Chemistry Chemical Physics : PCCP·G TegzeB Kvamme
Aug 4, 2007·The Journal of Chemical Physics·Keisuke KatsumasaHideki Tanaka
Dec 5, 2008·Journal of the American Chemical Society·Baron PetersBernhardt L Trout
Jul 1, 2008·Journal of Chemical Theory and Computation·T J H VlugtS Calero

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Citations

Oct 16, 2012·The Journal of Organic Chemistry·Bun ChanLeo Radom
Oct 19, 2012·The Journal of Physical Chemistry. a·He RenXiumei Pan
Jul 5, 2013·The Journal of Physical Chemistry. a·Wassja A KoppKai Leonhard
Aug 11, 2016·Physical Chemistry Chemical Physics : PCCP·Vasileios K MichalisIoannis G Economou
Apr 11, 2018·Chemical Communications : Chem Comm·Claire PetuyaArnaud Desmedt
Nov 2, 2018·Physical Chemistry Chemical Physics : PCCP·Nikolaos I PapadimitriouAthanassios K Stubos
Jan 6, 2022·The Journal of Physical Chemistry. B·Dilare Kainai, Dongsheng Bai

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