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Thermodynamic stability of structure H hydrates based on the molecular properties of large guest molecules

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.3390/en5020459
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Affiliation
  1. National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
FormatText, Article
SubjectClathrate hydrate; Equilibrium pressure; Gasphase; Guest molecules; Hydrate stabilities; Large molecule guest substance; Molecular properties; Molecular size; Molecule sizes; Structure H-hydrate; Gas hydrates; Gases; Hydration; Methane; Phase equilibria; Thermodynamic stability; Molecules
Abstract
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. © 2012 by the authors; licensee MDPI, Basel, Switzerland.
Publication date
In
  • Energies 5, no. 2 (2012): 459–465.
LanguageEnglish
Peer reviewedYes
NPARC number21269189
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Record identifierd4718ac2-37b3-4241-8318-9eb15cc82688
Record created2013-12-12
Record modified2020-04-21
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