A microfluidic approach for investigating multicomponent system thermodynamics at high pressures and temperatures
DA SILVA PINHO, Bruno
IFP Energies nouvelles [IFPEN]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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IFP Energies nouvelles [IFPEN]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
DA SILVA PINHO, Bruno
IFP Energies nouvelles [IFPEN]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Réduire
IFP Energies nouvelles [IFPEN]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Langue
en
Article de revue
Ce document a été publié dans
Lab on a Chip. 2014-10-07, vol. 14, n° 19, p. 3843-3849
Royal Society of Chemistry
Résumé en anglais
In this work, we present a novel microfluidic-based approach for investigating the thermodynamics of multicomponent systems at high pressures and temperatures, such as determining miscibility diagrams and critical coordinates ...Lire la suite >
In this work, we present a novel microfluidic-based approach for investigating the thermodynamics of multicomponent systems at high pressures and temperatures, such as determining miscibility diagrams and critical coordinates of complex mixtures. The developed method is primarily based on (i) bubble and dew point detection through optical characterization and (ii) the use of a so-called dynamic stop-flow measurement mode for fast screening of the diagram parameters, mainly P, T and composition. Our strategy was validated through the studies of model binary CO2-alkane mixtures. The obtained results were then compared to PREOS-calculated and literature data. We later applied this strategy for determining ternary and quaternary mixtures critical coordinates. This approach has equal accuracy compared to conventional high-pressure optical cell methods but allows for a much faster phase diagram determination, taking advantage of improved heat and mass transfers on the microscale and of the dynamic stop-flow approach.< Réduire
Project ANR
Micro-laboratoires géologiques sur puce pour l'étude des processus clés du transport réactif multiphasique appliqués au stockage géologique du CO2. - ANR-12-SEED-0001
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