Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules

This paper report analyses of thermodynamic stability of structure-H clathrate hydrates formed with methane and large guest molecules in terms of their gas phase molecular sizes and molar masses for the selection of a large guest molecule providing better hydrate stability. We investigated the corre...

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Main Authors: Ryo Ohmura, Amadeu K. Sum, Saman Alavi, Tatsuhiko Taguchi, Kyoichi Tezuka
Format: Article
Language:English
Published: MDPI AG 2012-02-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/5/2/459/
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author Ryo Ohmura
Amadeu K. Sum
Saman Alavi
Tatsuhiko Taguchi
Kyoichi Tezuka
author_facet Ryo Ohmura
Amadeu K. Sum
Saman Alavi
Tatsuhiko Taguchi
Kyoichi Tezuka
author_sort Ryo Ohmura
collection DOAJ
description This paper report analyses of thermodynamic stability of structure-H clathrate hydrates formed with methane and large guest molecules in terms of their gas phase molecular sizes and molar masses for the selection of a large guest molecule providing better hydrate stability. We investigated the correlation among the gas phase molecular sizes, the molar masses of large molecule guest substances, and the equilibrium pressures. The results suggest that there exists a molecular-size value for the best stability. Also, at a given molecule size, better stability may be available when the large molecule guest substance has a larger molar mass.
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spelling doaj.art-6d4261b455ee48e5b0116042fb0448d22022-12-22T03:59:14ZengMDPI AGEnergies1996-10732012-02-015245946510.3390/en5020459Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest MoleculesRyo OhmuraAmadeu K. SumSaman AlaviTatsuhiko TaguchiKyoichi TezukaThis paper report analyses of thermodynamic stability of structure-H clathrate hydrates formed with methane and large guest molecules in terms of their gas phase molecular sizes and molar masses for the selection of a large guest molecule providing better hydrate stability. We investigated the correlation among the gas phase molecular sizes, the molar masses of large molecule guest substances, and the equilibrium pressures. The results suggest that there exists a molecular-size value for the best stability. Also, at a given molecule size, better stability may be available when the large molecule guest substance has a larger molar mass.http://www.mdpi.com/1996-1073/5/2/459/clathrate hydratestructure Hphase equilibriamolecular properties
spellingShingle Ryo Ohmura
Amadeu K. Sum
Saman Alavi
Tatsuhiko Taguchi
Kyoichi Tezuka
Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules
Energies
clathrate hydrate
structure H
phase equilibria
molecular properties
title Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules
title_full Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules
title_fullStr Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules
title_full_unstemmed Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules
title_short Thermodynamic Stability of Structure H Hydrates Based on the Molecular Properties of Large Guest Molecules
title_sort thermodynamic stability of structure h hydrates based on the molecular properties of large guest molecules
topic clathrate hydrate
structure H
phase equilibria
molecular properties
url http://www.mdpi.com/1996-1073/5/2/459/
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AT samanalavi thermodynamicstabilityofstructurehhydratesbasedonthemolecularpropertiesoflargeguestmolecules
AT tatsuhikotaguchi thermodynamicstabilityofstructurehhydratesbasedonthemolecularpropertiesoflargeguestmolecules
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