TY - JOUR
T1 - Hydrate-containing phase equilibria for mixed guests of carbon dioxide and nitrogen
AU - Kim, Sun Hyung
AU - Seo, Myoung Do
AU - Kang, Jeong Won
AU - Lee, Chul Soo
N1 - Funding Information:
The authors are grateful to Korea Ocean Research and Development Institute for financial support.
Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/7/25
Y1 - 2011/7/25
N2 - Hydrate-containing phase equilibria for mixtures composed of carbon dioxide, nitrogen and water are of potential importance for the flow assurance in the transportation of captured carbon dioxide. Literature data for such mixture tend to be reported on water free basis. In this study three- and four-phase equilibria were experimentally studied at the pressure ranging from 5 to 20. MPa. Isobaric dissolution temperatures of formed hydrates were measured and reported for accurately determined loading compositions. Complex phase behaviors composed of two-, three- and four- phases were observed and they were analyzed by comparing with calculations using GSMGem program developed by Sloan and Koh [1]. Phase equilibria were found to be sensitive to water contents in water dominating mixtures. CSMGem and HYSYS (version 7.1) from AspenTech calculations were found in general agreements with present and literature data.
AB - Hydrate-containing phase equilibria for mixtures composed of carbon dioxide, nitrogen and water are of potential importance for the flow assurance in the transportation of captured carbon dioxide. Literature data for such mixture tend to be reported on water free basis. In this study three- and four-phase equilibria were experimentally studied at the pressure ranging from 5 to 20. MPa. Isobaric dissolution temperatures of formed hydrates were measured and reported for accurately determined loading compositions. Complex phase behaviors composed of two-, three- and four- phases were observed and they were analyzed by comparing with calculations using GSMGem program developed by Sloan and Koh [1]. Phase equilibria were found to be sensitive to water contents in water dominating mixtures. CSMGem and HYSYS (version 7.1) from AspenTech calculations were found in general agreements with present and literature data.
KW - Four-phase equilibrium
KW - Hydrate-containing equilibrium
KW - Three-phase equilibrium
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U2 - 10.1016/j.fluid.2011.04.011
DO - 10.1016/j.fluid.2011.04.011
M3 - Article
AN - SCOPUS:79957649509
VL - 306
SP - 229
EP - 233
JO - Fluid Phase Equilibria
JF - Fluid Phase Equilibria
SN - 0378-3812
IS - 2
ER -