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Original title:
Phase equilibria of carbon dioxide and methane gas-hydrates predicted with the modified analytical S-L-V equation of state
Authors: Vinš, Václav ; Jäger, A. ; Hrubý, Jan ; Span, R.
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2011, Jičín (CZ), 2011-11-22 / 2011-11-25
Year: 2011
Language: eng
Abstract: Gas-hydrates (clathrates) are non-stoichiometric crystallized solutions of gas molecules in the metastable water lattice. Two or more components are associated without ordinary chemical union but through complete enclosure of gas molecules in a framework of water molecules linked together by hydrogen bonds. The clathrates are important in the following applications: the pipeline blockage in natural gas industry, potential energy source in the form of natural hydrates present in ocean bottom, and the CO2 separation and storage. In this study, we have modified an analytical solid-liquid-vapor equation of state (EoS) [A. Yokozeki, Fluid Phase Equil. 222–223 (2004)] to improve its ability for modeling the phase equilibria of clathrates. The EoS can predict the formation conditions for CO2- and CH4-hydrates. It will be used as an initial estimate for a more complicated hydrate model based on the fundamental EoSs for fluid phases.
Keywords: aqueous solutions; equation of state; gas-hydrate
Project no.: CEZ:AV0Z20760514 (CEP), GAP101/11/1593 (CEP), GPP101/11/P046 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: International Conference Experimental Fluid Mechanics 2011, ISBN 978-80-7372-784-0
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0006705
Permalink: http://www.nusl.cz/ntk/nusl-80947
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Authors: Vinš, Václav ; Jäger, A. ; Hrubý, Jan ; Span, R.
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2011, Jičín (CZ), 2011-11-22 / 2011-11-25
Year: 2011
Language: eng
Abstract: Gas-hydrates (clathrates) are non-stoichiometric crystallized solutions of gas molecules in the metastable water lattice. Two or more components are associated without ordinary chemical union but through complete enclosure of gas molecules in a framework of water molecules linked together by hydrogen bonds. The clathrates are important in the following applications: the pipeline blockage in natural gas industry, potential energy source in the form of natural hydrates present in ocean bottom, and the CO2 separation and storage. In this study, we have modified an analytical solid-liquid-vapor equation of state (EoS) [A. Yokozeki, Fluid Phase Equil. 222–223 (2004)] to improve its ability for modeling the phase equilibria of clathrates. The EoS can predict the formation conditions for CO2- and CH4-hydrates. It will be used as an initial estimate for a more complicated hydrate model based on the fundamental EoSs for fluid phases.
Keywords: aqueous solutions; equation of state; gas-hydrate
Project no.: CEZ:AV0Z20760514 (CEP), GAP101/11/1593 (CEP), GPP101/11/P046 (CEP)
Funding provider: GA ČR, GA ČR
Host item entry: International Conference Experimental Fluid Mechanics 2011, ISBN 978-80-7372-784-0
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0006705
Permalink: http://www.nusl.cz/ntk/nusl-80947
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Record created 2012-01-11, last modified 2024-01-26