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dc.contributor.advisorDarwish, Naif
dc.contributor.authorMohammed, Faisal Waleed
dc.date.accessioned2018-05-27T07:32:20Z
dc.date.available2018-05-27T07:32:20Z
dc.date.issued2018-04
dc.identifier.other35.232-2018.07
dc.identifier.urihttp://hdl.handle.net/11073/9327
dc.descriptionA Master of Science thesis in Chemical Engineering by Faisal Waleed Mohammed entitled, “Effects of Selected Ionic Liquids on the Vapor-Liquid-Equilibria of Water-2-Propanol System”, submitted in April 2018. Thesis advisor is Dr. Naif Darwish. Soft and hard copy available.en_US
dc.description.abstractSeparation processes involving vapor and liquid phases represent a typical unit operation in most chemical industries, including distillation and absorption. A large fraction of the capital and operating costs is usually devoted to such operations. Owing to the unlikelihood of the complete separation of azeotropic mixtures by distillation, separation processes involving such mixtures remain one of the most pressing challenges in the chemical industry. Using inorganic salts is a common technique in handling azeotropic systems. However, issues such as corrosion and fouling render this technique ineffective. Recently, ionic liquids were introduced as azeotrope-breakers. In this work, the effect of two ionic liquids, i.e., 1-Butyl-1-methylpyrrolidinium chloride [BMPy][Cl], and 1-Butyl-1-methylpyrrolidinium trifluoromethanesulfonate [BMPy][OTf] on the vapor liquid equilibrium (VLE) of the (azeotropic) water + 2-propanol system is investigated. For this purpose, the corresponding binary VLE for water or 2-propanol with each of the two ionic liquids were experimentally measured and reported at 100, 75, and 50 kPa. Based on the observed boiling point elevation, it has been found that [BMPy][Cl] has a higher interaction with both solvents than [BMPy][OTf]. Furthermore, it has been found that [BMPy][Cl] has a higher interaction with water than with 2-propanol, while [BMPy][OTf] interacts with both solvents in a similar manner. The boiling point elevation was found to be independent of the pressure. Most importantly, [BMPy][Cl], at a mole fraction of 0.31in the liquid phase, was capable of completely eliminating the azeotrope of water + 2-propanol system. In contrast, [BMPy][OTf] shifted the azeotrope towards the alcohol-rich region, yet it was not able to completely remove the azeotrope of this system at the studied concentrations. Data were modelled with the non-random, two-liquid (NRTL) model, which could describe the experimental data, with a root mean square deviation (RMSD) less than 0.015 for the solvents’ activity coefficients in the binary systems. For the ternary systems, the RMSD for temperature was found to be less than 2 ºC. Thus, it is concluded that chloride based ionic liquids resemble good entrainers for the extractive distillation of the studied azeotrope.en_US
dc.description.sponsorshipCollege of Engineeringen_US
dc.description.sponsorshipDepartment of Chemical Engineeringen_US
dc.language.isoen_USen_US
dc.relation.ispartofseriesAmerican University of Sharjah Student Worken_US
dc.relation.ispartofseriesMaster of Science in Chemical Engineering (MSChE)en_US
dc.subjectVapour-liquid equilibriumen_US
dc.subject2-Propanolen_US
dc.subjectPyrrolidinium-based ionic liquidsen_US
dc.subjectNRTL modelen_US
dc.subjectNon-random, two-liquid (NRTL)en_US
dc.subjectAzeotropic mixturesen_US
dc.subject.lcshVapor-liquid equilibriumen_US
dc.subject.lcshIonic solutionsen_US
dc.subject.lcshAzeotropesen_US
dc.titleEffects of Selected Ionic Liquids on the Vapor-Liquid-Equilibria of Water-2-Propanol Systemen_US
dc.typeThesisen_US


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