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Equilibrium Conditions of Methane Hydrate added Help Gases  

Kim, Nam-Jin (Dept. of Nuclear & Energy Engineering, Cheju National University)
Lim, Sang-Hoon (New & Renewable Energy Research Department, Korea Institute of Energy Research)
Chun, Won-Gee (Dept. of Nuclear & Energy Engineering, Cheju National University)
Publication Information
Journal of the Korean Solar Energy Society / v.27, no.4, 2007 , pp. 51-58 More about this Journal
Abstract
Gas hydrate is a special kind of inclusion compound that can be formed by capturing gas molecules to water lattice in high pressure and low temperature conditions. When referred to standard conditions, $1m^3$ solid hydrates contain up to $172Nm^3$ of methane gas, depending on the pressure and temperature of production. Such large volumes make natural gas hydrates can be used to store and transport natural gas. In this study, three-phase equilibrium conditions for forming methane hydrate were theoretically obtained in aqueous single electrolyte solution containing 3wt% NaCl. The results show that the predictions match the previous experimental values very well, and it was found that NaCl acts as an inhibitor.
Keywords
Methane hydrate; Equilibrium; Fugacity; Chemical potential; Inhibitor;
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