Дисертації з теми "Equilibre Vapeur-Liquide"
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Ammar, Mohamed Naceur. "Modélisation d'opérations unitaires et méthodes numériques de calcul d'équilibre liquide-vapeur." ENMP, 1986. http://www.theses.fr/1986ENMP0002.
SOLASTIOUK, GALIVEL FRANCINE. "Equilibres liquide-vapeur des systemes propane-methanol et propane-methanol-dioxyde de carbone : mesures et representations." Paris, ENMP, 1988. http://www.theses.fr/1988ENMP0103.
Mokraoui, Salim. "Mesures et modélisation des solubilités mutuelles dans les systèmes aqueux hydrocarbures - alcanolamines." Phd thesis, École Nationale Supérieure des Mines de Paris, 2006. http://pastel.archives-ouvertes.fr/pastel-00002487.
Coquelet, Christophe. "Etude des fluides frigorigéniques : mesures et modélisations." Paris, ENMP, 2003. https://pastel.archives-ouvertes.fr/pastel-00000991.
Sadli, Mohammad. "Equilibre liquide-vapeur du potassium dans un four caloduc contrôle en pression : vers une référence secondaire de température entre 600 et 840c." Paris, CNAM, 1997. http://www.theses.fr/1997CNAM0301.
Riva, Mauro. "Procédés de purification du biométhane : étude thermodynamique des équilibres solide-liquide-vapeur de mélanges riches méthane." Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEM098.
In the field of non-fossil energy sources and exploitation of wasted energies, this PhD project aims to improve the availability of the alternative and renewable resource that is the upgraded biogas, also calledbiomethane. A particular type of biogas is here studied: landfill gas, produced in landfills from the anaerobic digestion of wastes. Depending on the final use, landfill gas need to be treated in order to remove impurities and increase the methane content (upgrading). Carbon dioxide (CO2 ), nitrogen (N2 ) and oxygen (O2 ) need thus to be separated from methane. Because upgrading process is fundamental for further applications of the landfill gas, suitable separationtechniques have to be studied. The objective of the thesis is the study and simulation of an optimized cryogenic technology applied to a landfill upgrading process. The base of the study is the knowledge of the thermodynamic behavior of mixtures constituted of methane and minor compositions of N2 , O2 andCO2 . At this purpose, thermodynamic model will be developed for determining the phase diagrams of methane with the other gases present in the landfill gas. Moreover, in order to validate and calibrate the thermodynamic models, phase equilibrium data involving a CO2 solid phase are needed: an extended bibliographic research on existing data is performed and original measurements are provided where data from literature are missing
Campestrini, Marco. "Étude thermodynamique des équilibres solide-liquide-vapeur : application à la cryogénie et aux unités de séparation de l’air." Thesis, Paris, ENMP, 2014. http://www.theses.fr/2014ENMP0035/document.
In the framework of the cryogenic air separation, impurities such as CO2 and N2O may solidify at the reboiler-condenser placed between the two distillation columns.The formed solid could provide an additional strength to the heat and material transfers, and increase the pressure drops in the distillation columns.Furthermore, the presence of a solid phase can promote the accumulation of light hydrocarbons which may form flammable mixtures with liquid oxygen.Therefore, the presence of solid phases must be controlled see avoided within the cryogenic air distillation process.The main issue of this thesis is to develop a suitable model for representing solid phases and their equilibrium with the liquid and vapor phases at the operating conditions of the process, and to obtain full phase diagrams which would improve the knowledge of phase equilibria and the control of the risks associated to the presence of solid phases
Messabeb, Hamdi. "Caractérisation thermodynamique des équilibres liquide-vapeur des systèmes CO2 – eaux salées dans des conditions de hautes températures et hautes pressions." Thesis, Pau, 2017. http://www.theses.fr/2017PAUU3013/document.
This work was supported by Total and ‘’Agence National de la recherche’’ as a part of SIGARRR project (Simulation of the impact of annex gases co-injected with CO2 during its geological storage on the Reservoir-Rocks Reactivity. The aim of the thesis was to obtain experimental CO2 solubility data in salty aqueous solutions of sodium chloride and calcium chloride at different molalities (1, 3 and 6 mol/kg) under high temperature (323K < T < 423K) and high pressure (5 MPa < P < 20 MPa).Following a bibliographical study on experimental methods used for the carbon dioxide solubility determination, three characterization methods were tested: Aqueous phase analysis by ion chromatography Solubility estimation from mass balance, amounts of CO2 and liquid initially loaded into the cell and experimental parameters (density of liquid phase, molar volume of gas phase, and total volume of the equilibrium cell…). A liquid sample trapping in sodium hydroxide solution followed by a titrationA sensitivity study was carried out on the Solubility estimation method from mass balance. This study identified the level of accuracy of autoclave volume measurement to obtain reliable and accurate solubility data high-pressure.A sampling protocol was developed to withdraw aqueous samples and trap them into soda solution at high pressure. Two titration procedures were set up; liquid samples of CO2-H2O and CO2-H2O-NaCl systems were analyzed by potentiometric titration and samples of CO2-H2O-CaCl2 system were analyzed by conductimetric titration. 84 solubility data were obtained during this study, which include 45 new experimental data. Experimental measurement were compared to the results of simulation performed with PHREEQC software using a ‘’Pitzer.dat’’ database.The salting out effect observed was evaluated for each system under all temperature and pressure conditions
Bassil, Georgio. "Gazéification de la biomasse : élimination des goudrons par lavage, étude expérimentale et modélisation." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10057/document.
Gasification of biomass is a promising thermochemical renewable energy resource. Among all biomass conversion processes, gasification by heat cogeneration / bio-SNG (Substitute Natural Gas) is the promising one. But still, one of the deadlocks to be raised is the reduction of the high level of tar present in the product gas. The objective of this work is to perform a data base which will be useful at the operation of tar removal from aqueous medium. The present work has mainly focused on the acquisition of bi and triphasic equilibrium data model molecules of tars - water - washing solvent. Such data are indeed essential for the development of the thermodynamic model for the modeling and the optimization of the washing process. Analyses of liquid phases in equilibrium have been performed by GC-FID or GC-MS. In some cases the concentration levels were particularly low (up to 10-10 mole fraction of anthracene in the aqueous phase). Reciprocal concentrations obtained and the partition coefficients which are deduced from the empirical correlation satisfy each of Hands and the Van't Hoff relationship. Liquid-liquid-vapor equilibrium of binary systems (water-extracting solvent) was studied with the static method. The concentrations of the phases in equilibrium were correlated by the NRTL and UNIQUAC models using the commercial software 'Thermodynamic Simulis'. The interaction parameters adjusted allow a good reproduction of experimental data
Kuswandi, M. "Procédés de séparation en milieu dispersé : régénération du triéthylène glycol par extraction de l'eau à l'aide d'un brouillard. Etude sur pilote et simulation. Séparation d'hydrocarbures par membranes liquides émulsionnées." Compiègne, 2000. http://www.theses.fr/2000COMP1275.
Blanchon, Le Bouhelec-Tribouillois Émilie. "Contribution à la thermodynamique de l'absorption des gaz acides H2S et CO2 dans les solvants eau-alcanolamine-méthanol : mesures expérimentales et modélisation." Thesis, Vandoeuvre-les-Nancy, INPL, 2006. http://www.theses.fr/2006INPL046N/document.
This work is related to the development of new processes about gas sweetening with hybrid solvents coupling a chemical one (aqueous solution of diethanolamine) with a physical one (methanol). In the liquid phase, CO2 and H2S react with diethanolamine so that the VLE description of these systems is quite complex and requires experimental data. The first part of this work is dedicated to the experimental determination of acid gases + hybrid solvent solubility data. The experimental apparatus was improved to study H2S solubility and CO2 + H2S mixtures solubility in water-diethanolamine-methanol solvents. In the second part, the simultaneous representation of chemical and phase equilibria was realised. The heterogeneous approach developed here combines the Peng-Robinson equation of state for the vapour phase with the Electrolyte-NRTL model for the liquid phase. Parameters are fitted gradually so that the entire system water-diethanolamine-methanol-CO2-H2S system is extrapolated using Electrolyte-NRTL parameters determined by fitting experimental acid gas partial pressures of lower systems. Methanol effect is also described. An original calculation of heat of absorption was also developed. We extended the use of our approach to study others alkanolamines
Vitu, Stéphane. "Développement d'une méthode de contributions de groupes pour le calcul du coefficient d'interaction binaire de l'équation d'état de Peng-Robinson et mesures d'équilibres liquide-vapeur de systèmes contenant du CO2." Thesis, Vandoeuvre-les-Nancy, INPL, 2007. http://www.theses.fr/2007INPL080N/document.
A group contribution method allowing the estimation of the temperature dependent binary interaction parameter (kij) for the Peng Robinson equation of state is proposed. Doing so, a new predictive thermodynamic model is born. Twelve groups are defined and it is now possible to estimate the kij for any mixture containing alkanes, aromatics, naphthenes and CO2, whatever the temperature. The model, called PPR78 (Predictive 1978, Peng Robinson equation of state), gives a good description of the phase diagrams and critical locus of binary systems. This predictive model can be successfully employed for the simulation of many mixtures such as natural gases and petroleum fluids. Using a high pressure visual cell, vapor liquid equilibria measurements were made for two binary systems: CO2 methylcyclopentane and CO2 isopropylcyclohexane. For these two systems, no literature data were available. Finally, we measured bubble and dew points on a five component hydrocarbon mixture in the presence of CO2
Silva, Vargas Karen Zulay. "Mise à l'échelle de la synthèse d'alcool allylique à partir de Glycérol." Thesis, Centrale Lille Institut, 2020. http://www.theses.fr/2020CLIL0024.
Allyl Alcohol is an interesting platform molecule due to its broad range of applications. The Deoxydehydration (DODH) of glycerol seems currently the most competitive method to synthesize allyl alcohol from renewable sources. However, so far, this reaction has been only marginally investigated. The aim of this thesis was to develop an integrated production process of allyl alcohol via DODH of glycerol using a secondary alcohol as solvent-reductant. The catalyst development was carried out using ceria-supported rhenium oxide catalyst. Mesoporous ceria materials were synthetized via a nanocasting process using SiO2 and activated carbon as hard templates, giving excellent yields of up to 86%, using a 2-Hexanol or MIBC as a hydrogen donor and solvent. With respect to the process development, isobaric vapor liquid equilibrium data were determined for main binary systems in order to model the distillation column. The experimental VLE data was successfully fitted using NRTL, UNIQUAC and Wilson thermodynamic model. Finally, the integrated process modelling was carried out based on the experimental results and proposing different scenarios depending on the used solvent. All the proposed strategies allowed to obtain an allyl alcohol purity of 99.99%. In any scenario, the MIBC process proved to be a feasible strategy from a technical point of view, which could potentially be used as starting point for the development of a large scale DODH process
Galivel-Solastiouk, Francine. "Equilibres liquide-vapeur des systèmes propane-méthanol et propane-méthanol-dioxyde de carbone mesures et représentations /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37613758j.
Rossilhol, Nathalie. "Equilibres de phases à basse température de mélanges d'hydrocarbures légers, de méthanol et d'eau : mesures et modélisation." Lyon 1, 1995. http://www.theses.fr/1995LYO10328.
Bellajrou, Raddoine. "Equilibres liquide-vapeur, application au système ternaire NH3-CH3NH2-H2O : tensions de vapeur et cinétiques de décomposition de N2H4, (CH3)2NNH2 et UH25." Lyon 1, 1992. http://www.theses.fr/1992LYO10030.
LERMITE, CHRISTOPHE. "Fonctions d'exces et contributions de groupes appliquees au calcul des equilibres liquide-vapeur de systemes polaires ou non polaires sous haute pression." Paris 6, 1989. http://www.theses.fr/1989PA066617.
DELHOMMELLE, JEROME. "Etablissement de potentiels d'interaction pour la simulation moleculaire. Application a la prediction des equilibres liquide-vapeur de melanges binaires alcane-molecule multipolaire." Paris 11, 2000. http://www.theses.fr/2000PA112024.
Trinh, Thi Kim Hoang. "Prediction of Phase Equilibria Associated with Hydrotreating Process of Biomass by GC-PPC-SAFT Equation of State." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCD074/document.
The main objective of this thesis is to develop a predictive tool to compute the vapor-liquid equilibria (VLE) associated with hydrotreating operation from biomass for process simulation. The construction of a reliable database of hydrogen and the other hydrotreating gases solubilities have been done. The model used based on the Group Contribution – Polar Perturbed Chain – Statistical Associating Fluid Theory (GC-PPC-SAFT), which is PC-SAFT combined with the group contribution proposed by Tamouza and a polar term developed by Nguyen Huynh. The systematic tests have been perform for mixtures of alcohols, aldehydes, esters, ethers, ketones,… A new non-additive contribution has also been proposed based on the reflections on the repulsive interactions and the free volume effect. The model development are validated by Monte Carlo simulations. This non-additive term has been integrated in GC-PPC-SAFT Equation of state and tested for systems containing hydrogen. Group contribution method has been extended to its parameter. Average deviations on Henry’s constant are within the experimental uncertainty (~10%). We also have performed the prediction of the other gases i.e. CO, H₂S, NH₃ solubility using GC-PPC-SAFT. A cross associative parameter has been used for systems containing H₂S and NH₃. The results are quite acceptable and within the experimental uncertainty (~20%)
GARCIA-SANCHEZ, FERNANDO. "Correlation et mesures des equilibres liquide-vapeur sous haute pression des systemes methane-dimethylether et metane-diethylether : representation thermodynamique analytique des diagrammes de phases des systemes micellaires." Paris, ENMP, 1989. http://www.theses.fr/1989ENMP0163.
Chapoy, Antonin. "Etude des équilibres des systèmes : Eau-hydrocarbures-gaz acides dans le cadre de la production de gaz." Phd thesis, École Nationale Supérieure des Mines de Paris, 2004. http://pastel.archives-ouvertes.fr/pastel-00001202.
Deterre, Sophie. "Influence des étapes de production du parfum issu des écorces d’orange amère (Citrus aurantium L. ssp amara) sur la qualité aromatique." Thesis, Paris, AgroParisTech, 2012. http://www.theses.fr/2012AGPT0023/document.
The Grand Marnier® liqueur produced by the Société des Produits Marnier-Lapostolle (SPML), is composed of a bitter orange aroma. This aroma, called parfum, is produced from essential oil (EO) of bitter orange peelings that underwent a maceration-distillation process. The aim of this PhD study was to focus on the key odour compounds of the bitter orange peelings, and understand their behaviours throughout the process, in order to find optimisation strategies. The following strategies were applied: (1) identification of odour volatiles compounds in bitter orange EO and parfum; (2) observation and understanding of the steps of the parfum production, from raw material to distillation, and study of their impacts on the quality of the parfum; (3) deep study of the multi-stage batch distillation. Among the 51 and 37 volatile compounds identified, we detected by olfactometry 19 odour compounds in EO and 7 in parfum. From the EO results of the strategy (1), a selection of odour compounds, called markers, was thus carried out applying specific filters. This procedure was validated by a classification sensorial study of bitter orange EO from different geographical origins. Observations and results of strategy (2) demonstrated that distillation has the biggest impact on the quality of the parfum. During distillation, 9 key process parameters, such as the alcoholic strength by volume and reflux rate, were continuously recorded. In parallel, markers compounds were quantified in distillate samples collected at specific control points from head to tail cuts. The behaviour of the key markers together the knowledge of their physical-chemical characteristics made it possible to better understand the current lead of the distillation. Thereby changes of distillation parameters were proposed and pilote trials were carried out in the strategy (3). In view to control and optimise the multi-stage batch distillation process, other works were focused on simulation with the BatchColumn software from ProSim®. This requires to: 1) determine the vapour-liquid equilibrium data of certain markers compounds; 2) build a thermodynamic model simulating real experimental data; 3) integrate the experimental data and the model selected in BatchColumn. With this approach, we easily represented the distillation as it was realised in the industry. Futures studies, including changes of parameters such as still composition, distillation and structure parameters, could be carried out to optimise the process and see the impact on these changes of the quality of the parfum
Youssef, Ziad. "Étude thermodynamique de la formation d'hydrates en absence d'eau liquide : mesures et modélisation." Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00694018.
Revelli, Anne-Laure. "Etude thermodynamique des liquides ioniques : applications à la protection de l'environnement." Thesis, Vandoeuvre-les-Nancy, INPL, 2010. http://www.theses.fr/2010INPL039N/document.
Nowadays, replacement of conventional organic solvents by a new generation of solvents less toxic, less flammable and less polluting is a major challenge for the chemical industry. Ionic liquids have been widely promoted as interesting substitutes for traditional solvents. The aim of this work is to study the behavior of ionic liquids with organic compounds or gases in order to determine their range of applications in process engineering.First, interactions between organic compounds and ionic liquids are studied using inverse gas chromatography. The activity coefficients at infinite dilution are used to calculate capacity and selectivity of different ionic liquids for different separation problems. A solvation model <> is proposed in order to estimate the gas-to-ionic liquid partition coefficients in alkyl or functionalized ionic liquids. Then, liquid-liquid equilibria measurements of ternary systems were carried out in order to evaluate the efficiency of three ionic liquids for three separation problems frequently encountered in chemical industry (extraction of aromatic compounds, thiophene or linear alcohols). The high values of distribution coefficients and selectivities indicate that the investigated ionic liquids could replace the traditional solvents. Finally, the performance of ionic liquids for greenhouse gases capture was examinated through solubility measurements of carbon dioxide and nitrous oxide in ionic liquids at high pressure. The experimental data is used in order to extend the model PPR78 (Predictive 1978, Peng-Robinson equation of state) to systems containing {CO2+ ionic liquid}
Bonet, i. Ruiz Jordi. "Contribution à l'étude de la transestérification de l'acétate de méthyle par distillation réactive." Doctoral thesis, Toulouse, INPT, 2006. http://ethesis.inp-toulouse.fr/archive/00000432/.
The PVA is non inflammable, non toxic and biodegradable polymer. Its main reaction of synthesis produces a high flow rate of residue. The residue is an azeotropic mixture of methanol and methyl acetate. The methanol is a raw material for the synthesis of PVA and by reaction of the methyl acetate with alcohol it is possible to produce methanol and an other acetate. An original process combining the reaction inside a pressure swing system allows the residue revalorization with only two column. A fast to rigorous methodology is used. We determine experimentally the vapor liquid equilibria, compare the alternatives and verify the results by rigorous simulation with ProSim Plus
Puentes, Mancipe Cristian. "Modélisation des équilibres entre phases et simulation de la distillation des eaux-de-vie en vue d’une meilleure compréhension du comportement des composés volatils d’arôme." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLA041/document.
The quality of spirits is a parameter related to the composition of volatile aroma compounds. This composition results from the combined production process of raw material extraction, subsequent fermentation, distillation and, in many cases, ageing.Distillation is a very old and the most important industrial separation technology. However, in spirits production, this operation relies essentially on empirical knowledge. The aim of this PhD was to contribute to a better understanding of the volatile aroma compounds behaviour in spirits distillation and to provide a scientific basis for the process through computer simulation. The study was focused on Armagnac and Calvados production by continuous multistage distillation.The simulation modules were built using the software ProSimPlus®. The first part of this research was dedicated to the acquisition of vapor-liquid equilibrium data of the volatile aroma compounds in ethanol-water solutions, in order to estimate the binary interaction parameters of the NRTL model.Three complementary approaches of data acquisition were used: literature compilation, experimental measurements and predictions with UNIFAC and COSMO models.According to their relative volatilities with respect to ethanol and water, the volatile aroma compounds can be classified in three groups: light compounds, intermediary compounds and heavy compounds. The second part of this research dealt with the creation and validation of simulation modules, by using reconciled experimental data from the distillation units. The results prove that simulation is a powerful tool in spirits distillation. The simulation data enables a more precise classification of the intermediary compounds in three categories, by considering their composition profiles in the distillation column and their recovery ratios from feed to distillate. Finally, the analysis of some operating parameters, including ethanol concentration in the distillate as well as tails extractions, demonstrates that the distillate composition can be modified by virtue of a selective separation of intermediary and heavy compounds with respect to ethanol