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Academic literature on the topic 'Distillation Hydrodynamique Colonnes à garnissage'
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Dissertations / Theses on the topic "Distillation Hydrodynamique Colonnes à garnissage"
Shehadeh, Gabriel. "Les garnissages métalliques de texture ordonnée en distillation : Etude de l'hydrodynamique et de la capacité de séparation : Influence de la pression." Lyon, INSA, 1992. http://www.theses.fr/1992ISAL0067.
Full textDistillation is the most frequent process for separating the compnents from liquid mixture. For about twenty years, the products of high molecular weight and high addèd value have been obtained by distillation under high vacuum conditions. These packings have the form of cylindrical plugs occupying the whole cross section area of an industrial column. Since 1985 they have replaced the plates in very high pressure columns. Two pilot plants have been for characterizing the most important structured packings with respect to the hydrodynamic (pressure drop, hold-up, operating region as a function of the pressure, flooding point) and the capability of separation (HETP). One column can be operated at low pressures (P 1000 Pa) and the ether one at high. Pressures (between 10 exp5 and 12. 10exp5Pa). Correlations are proposed for predicting the values of the hydrodynamic and separation parameters which. Are necessary of any chemical engineering consultant group for the design of distillation columns and all other mass transfer equipments
Albet, Joël. "Simulation rigoureuse de colonnes de distillation discontinue à séquences opératoires multiples." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT008G.
Full textMilot, Jean-François. "Analyse du fonctionnement hydrodynamique d'une colonne pulsée à disques et couronnes." Toulouse, INPT, 1990. http://www.theses.fr/1990INPT033G.
Full textMoustiri, Salima. "Hydrodynamique des colonnes à bulles fonctionnant à co-courant de gaz et de liquide : Effet hydrodynamique généré par la présence d'un garnissage spécifique." Toulouse, INSA, 2000. http://www.theses.fr/2000ISAT0049.
Full textThe purpose of this work is to study the effect of a specific stainless steel packing on the hydrodynamic of bubble columns operating with co-current up-flow of gas and liquid. In a first part, the hydrodynamic parameters, as gas hold-up, flow regime, bubble diameter, slip velocity and the liquid axial mixing coefficient, have been determined without the packing, and this for two different columns diameters (15 and 20 cm) and two types of gas sparger (membrane and perforate plate). A dimensionless approach has been established to describe liquid axial mixing. It's application on literature data gave satisfactory result. In the second part, the experimental measurements have been done on the same bubble columns with the packing. The obtained results show that this type of packing has a considerable effect on the hydrodynamic, it affects radial gas hold-up and bubbles size distribution, so flow regime. Liquid axial mixing has also been greatly affected by the presence of this packing, tending toward the plug flow
Assaoui, Mohammed. "Influence de la pression sur le comportement des garnissages en distillation." Lyon 1, 1996. http://www.theses.fr/1996LYO10166.
Full textSalimi, Fariba. "Approche comparative de la simulation dynamique des colonnes de distillation à plateaux et à garnissage." Châtenay-Malabry, Ecole centrale de Paris, 1996. http://www.theses.fr/1996ECAP0474.
Full textBourouis, Mahmoud. "Etude de l'hydrodynamique du film liquide, isotherme, ruisselant à l'intérieur de colonnes tubulaires à paroi ondulée : approches théorique et expérimentale." Toulouse, INPT, 1992. http://www.theses.fr/1992INPT014G.
Full textBracou, Hervé. "Etude hydrodynamique d'une colonne d'extraction. Influence de la mouillabilité." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT009G.
Full textMohammedi, Kamal. "Contribution à l’étude des garnissages en vrac en distillation sous pression réduite. Mesure d'aires interfaciales." Lyon, INSA, 1992. http://www.theses.fr/1992ISAL0046.
Full textThis work is dealing with hydrodynamics and mass transfer in counter-current random packed columns under reduced pressure. It consists of two parts. The first part is about distillation under reduced pressure. This process is advantageous when heat sensitive and corrosive materials or used solvents are: concerned. In distillation particularly under reduced pressure, many is done but too much is still unknown or unpublished. Hydrodynamics and mass transfer parameters (pressure drop, hold-up residence time distribution , flooding , HETP) are obtained from Raschig rings and Berl saddles packed column. In the second part, highlighting the importance of gas-liquid interfacial area for data interpretation, we measured this parameter by performing and absorption with fast second order irreversible reaction (sulfite-oxygen-cobalt system) under reduced pressure
Benadda, Belkacem. "Contribution à l'étude du transfert de matière dans une colonne à garnissage : influence de la pression." Lyon 1, 1994. http://www.theses.fr/1994LYO10145.
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