@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix vcard: . @prefix xsd: . a dcat:Dataset ; dct:description """ The aim of this Ph.D. thesis is the thermodynamic study of {amine – water} and {CO2 – amine – water} systems. The amines are demixing amines, which have the singularity to exhibit a liquid-liquid phase separation in aqueous solutions as a function of temperature, composition and CO2 loading charge. These compounds can be considerate as new absorbents for CO2 capture. The liquid-liquid phase separations for {amine – water} systems were detected by calorimetry and visual techniques using a microcalorimeter (microDSCIII, Setaram) and an equilibrium cell (SPM20, Thar Technologies). In order to help in the thermodynamic representation of {amine – water} systems, excess molar volumes, excess molar enthalpies and specific heat capacities were measured. The enthalpies of mixing were determined using a flow calorimetric technique. The calorimeter was a BT2.15 from Setaram equipped with a homemade mixing cell. Excess molar volumes were determined from densities measurement performed with a vibrating tube densitometer. The enthalpies of solution of CO2 with absorbent and limits of gas solubility were studied for selected systems of interest for CO2 capture using a flow calorimetric technique. Last part of this work concerns the development of thermodynamic models to correlate the experimental data. The Gibbs energies of studied {amine – water} systems were calculating using both extended UNIQUAC and NRTL models. However, two sets of parameters were necessary to describe on one side the liquid-liquid equilibrium of mixtures and on the other side excess molar enthalpies and specific heat capacities. For {CO2 – amine – water} systems, a gamma-phi model was used. Interactions parameters were adjusted with vapor-liquid data and are able to predict the enthalpy of solution of CO2 in aqueous amine solutions, solubility limits of gas and speciation of the system as a function of loading charge. """ ; dct:identifier "NNT: 2011CLF22206" ; dct:issued "2026-05-15T17:37:09.772486"^^xsd:dateTime ; dct:language "fr" ; dct:modified "2026-05-15T17:37:09.772492"^^xsd:dateTime ; dct:publisher ; dct:title "Thermodynamic study of aqueous solutions of demixing amines for carbon dioxide capture" ; dcat:contactPoint [ a vcard:Organization ; vcard:fn "CCSD" ] ; dcat:distribution ; dcat:keyword "amines-demixantes", "calorimetrie", "calorimetry", "captage-du-co2", "co2-capture", "demixing-amines", "diagramme-de-phases", "enthalpies-de-solution", "enthalpy-of-solution", "infoeu-reposemanticsdoctoralthesis", "modelisation", "physcondcm-genphysics-physicscondensed-matter-cond-matother-cond-matother", "solubilites", "solubility", "thermodynamic", "thermodynamique", "theses" ; dcat:landingPage . a dcat:Distribution ; dct:format "HTML" ; dct:issued "2026-05-15T17:37:09.834002"^^xsd:dateTime ; dct:modified "2026-05-15T17:37:09.743697"^^xsd:dateTime ; dct:title "Thermodynamic study of aqueous solutions of demixing amines for carbon dioxide capture" ; dcat:accessURL . a foaf:Agent ; foaf:name "test_moissonnage_selune" . a foaf:Document .