Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Entrainer"”.
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Structural and Functional Effects in Solutions With Pure and Entrainer-Doped Supercritical Solvents
The structural dependence of the solubility of nonvolatile compounds in compressed supercritical fluids has been investigated. Within pure, nonpolar supercritical solvents the predominant factor determining solubility is the volatility of the solute at the solution temperature. Of secondary …
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Intermolecular interactions in supercritical fluid solutions from fluorescence spectroscopy
… synergistic effects of mixed solutes, and entrainer effects, may be explained by a region around the solute that has a higher density than the bulk. We present a new technique to investigae SCF's using fluorescence spectroscopy to probe the local interactions. In contrast to thermodynamic …
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Analyse de la gestion de différents types de déchets d'une raffinerie de pétrole
… en deux aires d'asséchement pourrait entrainer une diminution d'environ 25 à 30% de ce type de résidus. L‘analyse de différents autres problèmes, tel celui qui se pose à l'unité de recyclage des huiles et celui posé par le déversement de boue épaissie aux sites de biodégradation, a …
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Feasibility Analysis of Estrification Systems with Entrainers
… system. To overcome the restraints, external entrainers are utilized to take advantage of liquid-liquid split of the lowest boiling azeotrope between the entrainer and water, which is one of the desired products in esterification production systems. Dichloromethane and trichloromethane are the …
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Analysis of heteroazenotropic systems
… mixtures by introducing a heterogeneous entrainer that causes liquid-liquid phase separation. Although the design and simulation of heteroazeotropic systems is far more complicated than its homogeneous counterpart, heteroazeotropic distillation is often preferred due to the ease of …
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Fonction des sphincters supérieur et inférieur de l’œsophage avec ou sans support respiratoire en période néonatale
… au niveau des voies aériennes supérieures peut entrainer des passages d’air dans l’œsophage, puis causer des distensions gastriques qui peuvent être responsables de reflux gastro-œsophagiens (RGO) néfastes. Le rôle du sphincter supérieur de l’œsophage (SSO) est important pour protéger le pharynx …
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RECOVERY AND SEPARATION PROCESSES IN THE RECYCLING CHAIN OF POLYAMIDE PLASTIC MATERIALS TO OBTAINECO-SUSTAINABLE RAW MATERIALS
… For solvent B, azeotropic distillation using an entrainer was developed to improve separation and reduce losses. Process simulations using AVEVA Pro/II helped design the distillation systems and confirm the experimental results, especially in terms of tray number, reflux ratio, and entrainer …
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Supercritical extraction of coal
… solvent was carbon dioxide. Effects of liquid entrainers (pre-mixed with the coal), and heat-pretreatment of the coal (at 400°C for 1 hour) were also studied. The major difference between the high and low temperature extractions was that coal reactions occurred at high temperatures …
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Analyse multicritère de la durabilité de la production et mise en marché du gin par les microdistilleries québécoises
… que la consommation de cette boisson peut entrainer des conséquences sanitaires et sociales, un engagement responsable de la part des producteurs est indispensable.