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Fluid Phase Equilibria 211 (2003) 1–10 Formation and dissociation studies for optimizing the uptake of methane by methane hydrates

By Dirk D. Link, Edward P. Ladner, Heather A. Elsen and Charles E. Taylor

Abstract

Characteristics such as temperature and pressure profiles for methane hydrate formation and dissociation in pure water, simulated seawater, and water–surfactant systems have been established. A hysteresis effect has been observed for repeated formation–dissociation cycles of the same methane–water system. In an attempt to maximize the uptake of methane during methane hydrate formation, the addition of sodium dodecyl sulfate provided methane uptake of over 97 % of the theoretical maximum uptake. Additional surfactants were tested for their ability to enhance the uptake of methane for hydrate formation. Successful demonstration of efficient methane storage using hydrate formation enhanced by addition of surfactants could provide a safe, low-cost alternative method for storage of natural gas at remote locations

Topics: Gas hydrates, Surfactant, Experimental method, Solid–fluid equilibria
Year: 2002
OAI identifier: oai:CiteSeerX.psu:10.1.1.151.5406
Provided by: CiteSeerX
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