On effective radii of dodecahedral cages in semiclathrate hydrates for van der Waals and Platteeuw model

Muromachi, Sanehiro; Takeya, Satoshi; Yuhara, Daisuke; Yasuoka, Kenji

doi:10.1016/j.fluid.2020.112846

Cited by 6 publications

(2 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The average values of filling degree with Ar, Kr, and Xe of two different regular D r cavities are 0.993, 0.991, and 0.977; for a distorted D d1 cavity these values are 0.229, 0.109, and 0.071, respectively. The filling degree of these D cavities with gases were discussed based on the van der Waals and Platteeuw model, and distinction in their gas selectivity was explained from a theoretical viewpoint …”

Section: Double Ionic Clathrate Hydrates Of Tiaa Tba and Tbp Salts Wi...mentioning

confidence: 99%

“…The filling degree of these D cavities with gases were discussed based on the van der Waals and Platteeuw model, and distinction in their gas selectivity was explained from a theoretical viewpoint. 128 The liquidus curves of the phase diagrams of the binary systems water−tetraalkylammonium salts constructed in the composition−temperature coordinate system are dome shaped with the maximum, corresponding to the hydrate composition. Thus, the greatest increase in the decomposition temperature of the double hydrate compared to the pure gas hydrate, "hydrate stabilization", is achieved at concentrations of aqueous solutions of tetraalkylammonium/phosphonium salts corresponding to the composition of the ICH.…”

Section: Double Ionic Clathrate Hydrates Of Tiaa Tba and Tbp Salts Wi...mentioning

confidence: 99%

See 1 more Smart Citation

Ionic Clathrate Hydrates of Tetraalkylammonium/phosphonium Salts: Structures, Properties, Some Applications, and Perspectives

2022

View full text Add to dashboard Cite

Ionic clathrate hydrates (ICHs) belong to one of the groups of a wide class of clathrate hydrates. In the crystal structures of ICHs, cation–anion pairs of guest molecules, typically tetraalkylammonium/phosphonium salts, are included into the host framework of hydrogen-bonded water molecules. Because of their suitable phase change temperature and latent heat, ICHs are considered as promising phase change materials for application in cold energy storage and transportation. The presence of vacant cavities in ICHs structures, which can incorporate small gas molecules such as, for example, H2, CH4, CO2, N2, H2S, determines the possibility of their use for the separation and storage of gases. The formation of these double ICHs occurs under much milder pressure and temperature conditions compared to the pure gas hydrates of the same gases. Studying of the structural characteristics and thermophysical properties of ICHs and double ICHs with gases is the necessary basis for their effective applications in different practical ends. This work reviews information related to the new details and features of the structures of ICHs and double ICHs with gases revealed over the last decade or a little more as well as some thermophysical data such as hydrate numbers, temperatures and enthalpies of dissociation. This review focuses only on ICHs of tetrabutyl-, tetraisoamylammonium (TBA, TiAA), and tetrabutylphosphonium (TBP) salts, which are the most common representatives of this class of compounds. One of the sections is devoted to ICHs of TBA and TiAA with polymeric anions such as cross-linked polyacrylates. The purpose of the present paper is to review the studies that have been relatively little addressed in previous works.

show abstract

Section: Double Ionic Clathrate Hydrates Of Tiaa Tba and Tbp Salts Wi...mentioning

confidence: 99%

Section: Double Ionic Clathrate Hydrates Of Tiaa Tba and Tbp Salts Wi...mentioning

confidence: 99%

Ionic Clathrate Hydrates of Tetraalkylammonium/phosphonium Salts: Structures, Properties, Some Applications, and Perspectives

2022

View full text Add to dashboard Cite

show abstract

Thermodynamic effects of the interaction of multiple solutes and dodecahedral-cage deformation on the semi-clathrate hydrate formation with CH4-CO2

Liu

Zhang

Liu

et al. 2023

Chemical Engineering Science

View full text Add to dashboard Cite

CO2 capture properties of semiclathrate hydrates formed with tetra-n-butylammonium and tetra-n-butylphosphonium salts from H2 + CO2 mixed gas

Muromachi

2021

Energy

View full text Add to dashboard Cite

On effective radii of dodecahedral cages in semiclathrate hydrates for van der Waals and Platteeuw model

Cited by 6 publications

References 67 publications

Ionic Clathrate Hydrates of Tetraalkylammonium/phosphonium Salts: Structures, Properties, Some Applications, and Perspectives

Ionic Clathrate Hydrates of Tetraalkylammonium/phosphonium Salts: Structures, Properties, Some Applications, and Perspectives

Thermodynamic effects of the interaction of multiple solutes and dodecahedral-cage deformation on the semi-clathrate hydrate formation with CH4-CO2

CO2 capture properties of semiclathrate hydrates formed with tetra-n-butylammonium and tetra-n-butylphosphonium salts from H2 + CO2 mixed gas

Contact Info

Product

Resources

About