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master's thesis
Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. urn:nbn:hr:149:315230
Krišto, Anđela
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Krišto, A. (2018). Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:315230

Krišto, Anđela. "Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:315230

Krišto, Anđela. "Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:315230

Krišto, A. (2018). 'Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 03 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:315230

Krišto A. Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2018 [cited 2024 November 03] Available at: https://urn.nsk.hr/urn:nbn:hr:149:315230

A. Krišto, "Ravnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:149:315230

Metadata
TitleRavnoteža kapljevina-kapljevina u sustavima s niskotemperaturnim eutektičkim otapalima na osnovi betaina i propilen-glikola
Title (english)Liquid-liquid equilibrium in the systems containing deep eutectic solvents based on betaine and propylene glycol
AuthorAnđela Krišto
MentorMarko Rogošić (mentor)
Committee memberMarko Rogošić (predsjednik povjerenstva)
Committee memberAleksandra Sander (član povjerenstva)
Committee memberJasna Prlić Kardum (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2018-07-11, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Mechanical, Thermal and Separation Processes
Abstract
Zadatak ovog rada je eksperimentalno proučiti ravnotežu u trokomponentnim sustavima kapljevina-kapljevina s niskotemperaturnim eutektičnim otapalima na osnovi betaina i propilen-glikola. Za niskotemperaturna eutektična otapala (engl. deep eutectic solvent, DES) korišteni su molarni omjeri betaina i propilen-glikola 1:4 i 1:5. Pripremljenim eutektičnim otapalima određen je indeks loma, pH-vrijednost, toplinska provodnost, temperaturna difuzivnost, toplinski kapacitet, električna vodljivost, gustoća i viskoznost. Niskotemperaturna eutektična otapala koriste se u ovom slučaju za ekstrakciju dušikovih i sumpornih spojeva iz otopine ugljikovodika koji su glavne komponente različitih tipova benzina. Kroz eksperimente s različitim masenim udjelima komponenata dobivena je ukupna slika ravnoteže 15 trokomponentnih sustava pri 25 °C i atmosferskom tlaku. Utvrđeno je da su istraženi DES-ovi potencijalno prikladniji za denitrifikaciju nego za desulfurizaciju. Ravnoteže su s uspjehom opisane modelima NRTL i UNIQUAC, a nešto bolje slaganje s eksperimentom pokazao je NRTL.
Abstract (english)
The primary goal of this thesis is to examine experimentally and describe the liquid-liquid equilibria in ternary systems containing deep eutectic solvents (DES) based on betaine and propylene-glycol. Molar ratios 1:4 and 1:5 of betaine vs. propylene-glycol were used for deep eutectic solvents. The complete characterization of DESs was performed with respect to refractive index, pH value, thermal conductivity, tenperature diffusivity, heat capacity, electrical conductivity, density and viscosity. Deep eutectic solvents are used in this case for the extraction of nitrogen- and sulfur-based compounds from solutions of hydrocarbons which are main components of various types of gasoline. Through experiments with varying mass fractions of components, an overall image of equilibrium was acquired for 15 ternary systems at 25 °C and atmospheric pressure. The investigated DESs were found potentially more suitable for denitrification than for desulfurization. The equilibria have been modelled successfully by NRTL and UNIQUAC models; a somewhat better description of experimental data was obtained by NRTL.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:315230
Study programmeTitle: Chemical Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2020-06-02 10:34:43