Hydrate Model for CCS Relevant Gases Compatible with Highly Accurate Equations of State I. Parameter Study and Model Fitting

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F15%3A00449190" target="_blank" >RIV/61388998:_____/15:00449190 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Hydrate Model for CCS Relevant Gases Compatible with Highly Accurate Equations of State I. Parameter Study and Model Fitting
Original language description
In this study, a gas hydrate model for pure CO2 hydrates was extended to eight hydrate formers relevant in CCS applications. The new model is compatible with highly accurate equations of state (EoS) for other phases than hydrate given in the form of the Helmholtz energy or the Gibbs energy. A detailed analysis of the main model parameters including the specific hydrate volume, the Langmuir constant, and the EoSs employed for other phases was carried out. A new correlation based on the Murnaghan EoS for solids was developed for the volume of gas hydrates. A comprehensive procedure for fitting the hydrate-model parameters was developed. The chemical potential of water for three-phase equilibria with hydrates and various hydrate composition data can be used in a multi-property fit to determine the model parameters. The uncertainties of the experimental data were thoroughly studied in order to define a dimensionless quality criterion for the multi-property fit.
Czech name
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Czech description
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Project
<a href="/en/project/7F14466" target="_blank" >7F14466: Phase behaviour in CCS systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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