Journal
FLUID PHASE EQUILIBRIA
Volume 280, Issue 1-2, Pages 61-67Publisher
ELSEVIER
DOI: 10.1016/j.fluid.2009.02.012
Keywords
Hydrogen; Tetrahydrofuran (THF); Clathrate hydrate; Phase equilibrium; Thermodynamic model
Funding
- US Department of Energy [DE-FG02-05ER46242]
- U.S. Department of Energy (DOE) [DE-FG02-05ER46242] Funding Source: U.S. Department of Energy (DOE)
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Tetrahydrofuran (THF) is one of the most widely used analogues for gas hydrates as well as a commonly used additive for reducing the formation pressure of a given hydrate process. Hydrates are also currently being investigated as storage materials for hydrogen as well as materials for hydrogen separations. Here we present a thermodynamic model, based on the CSMGem framework, that accurately captures the phase behavior of various hydrates containing THF and hydrogen. The model uses previously regressed parameters for components other than THF and H-2, and can reproduce hydrate formation conditions for a number of hydrates containing THF and/or hydrogen (simple THF, THF + CH4,THF + N-2, THF + CO2,THF + H-2, CH4 + H-2, C2H6 + H-2 and C3H8 + H-2). The incorporation of THF and H-2 within this model framework will serve as a valuable tool for hydrate scenarios involving either of these components. (C) 2009 Elsevier B.V. All rights reserved.
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