Naslov
Liquid–liquid equilibrium for the systems hydrocarbon – thiophene – 1-hexyl-3, 5-dimethylpyridinium bis(trifluoromethylsulfonyl)imide

Autori
Sander, Aleksandra ; Rogošić, Marko ; Ferčec, Borna

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings: Natural resources, green technology & sustainable development / Radojčić-Redovniković, Ivana ; Jakovljević, Tamara ; Vuković, Mladen ; Erdec Hendrih, Dina - Zagreb : Prehrambeno-biotehnološki fakultet Sveučilišta u Zagrebu, 2014, 97-101

ISBN
978-953-6893-04-1

Skup
Natural resources, green technology & sustainable development

Mjesto i datum
Zagreb, Hrvatska, 26.11.2014. - 28.11.2014

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
desulfurization; liquid-liquid equilibria; [C6mmpy][Tf2N]

Sažetak
Liquid-liquid equilibrium for four ternary systems involving one hydrocarbon (n-hexane, n-heptane, i-ocatne or toluene), thiophene and an ionic liquid (1-hexyl-3, 5-dimethylpyridinium bis(trifluoromethylsulfonyl)imide) was experimentally determined at atmospheric pressure and 25 °C. Equilibrium data are presented with binodal curves as well as with tie lines. Physical properties (density, viscosity and surface tension) of ionic liquid were measured at room conditions. The suitability of ionic liquid for extractive desulfurization was evaluated in terms of solute distribution ratio and selectivity. Extraction experiments with three-component and seven-component (n-hexane, n-heptane, i-octane, toluene, thiophene, pyridine and IL) systems have been performed. Based on the obtained results it can be concluded that 1-hexyl-3, 5-dimethylpyridinium bis(trifluoromethylsulfonyl)imide is a good selective solvent for desulfurization of model fuels. The solute distribution ratio and selectivity decreases with increasing solute mass fraction in the hydrocarbon-rich phase. The equilibrium data in three-component systems were well described with NRTL and UNIQUAC models. Extraction efficiency is higher in the three-component systems because in the seven-component system a larger number of components participates in the mass transfer between the model solution and ionic liquid.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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