Primjena nanosuspenzija u postupku ekstrakcije

master's thesis

• Title (english): Application of nanosuspensions in the extraction process
• Author: Maja Kovačić
• Mentor: Jasna Prlić Kardum (mentor)
• Committee member: Jasna Prlić Kardum (predsjednik povjerenstva)
• Committee member: Aleksandra Sander (član povjerenstva)
• Committee member: Igor Dejanović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2017-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering; Mechanical, Thermal and Separation Processes

Abstract

U ovom radu istražena je mogućnost primjene ekološki prihvatljivih otapala, ionskih kapljevina, niskotemperaturnih eutektičkih otapala i nanosuspenzija u procesu izdvajanja tiofena, piridina i toluena kapljevinskom ekstrakcijom iz modelne otopine koja predstavlja FCC benzin. U tu svrhu odabrane su ionske kapljevine [CH][CIT]-30 i [CH][MA]-30, eutektička otapala CH:EG i CH:MA:30 te nanosuspenzije ([CH][CIT]-30 + Al2O3), ([CH][MA]-30 + Al2O3), (CH:EG + Al2O3) i (CH:MA:30 + Al2O3). Provedena je karakterizacija ispitivanih sustava koja je uključivala određivanje gustoće i viskoznosti modelne otopine, odabranih ionskih kapljevina i eutektičkih otapala te raspodjelu veličina čestica i stabilnost nanosuspenzija. Određena je ravnoteža kapljevina–kapljevina u sustavima s tiofenom, piridinom i toluenom kao ključnom komponentom, n-heksanom, n-heptanom i isooktanom kao primarnim otapalom i CH:MA:30 kao sekundarnim otapalom. Istraženi su optimalni uvjeti provedbe ekstrakcije koji su uključivali odabir pogodnog otapala i solvent odnosa, određivanje vremena uspostavljanja ravnoteže, utjecaj vrste miješala i utjecaj nanočestica na djelotvornost ekstrakcije.

Abstract (english)

This paper explores the application of environmentaly friendly solvents - ionic liquids, deep eutectic solvents and nanosuspensions in tiophene, pyridine and tholuene liquid-liquid extraction process from the model solution which represents FCC gasoline. Ionic liquids [CH][CIT]-30, [CH][MA]-30, deep eutectic solvents CH:EG, CH:MA:30, and nanosuspensions [CH][CIT]-30 + Al2O3), [CH][MA]-30 + Al2O3, CH:EG + Al2O3 and CH:MA:30 + Al2O3 have been selected for this purpose. The model solution and selected solvents are characterized by determining of density and viscosity. Stability and particle size distribution of nanosupensions are determined. Liquid-liquid phase equililbria are experimentally determined in which the tiophene, pyridine and tholuene takes place as the key component, n-hexane, n-heptane and isooctane is the primary solvent and CH:MA:30 is the secundary solvent. Optimal conditions of liquid-liquid extraction process are explored which includes selecting a suitable solvent and solvent-to-feed ratio, determining the time to reach equilibrium, influence of the type of mixer, and the infuence of nanoparticles on the extraction efficiency.

• Keywords: desulfurizacija; denitrogenacija; ekstrakcija kapljevina-kapljevina; niskotemperaturna eutektička otapala; ionske kapljevine; nanosuspenzije; FCC benzin
• Keywords (english): desulfurization; denitrogenation; liquid-liquid extraction; deep eutectic solvents; ionic liquids; nanosuspensions; FCC gasoline
• Language: croatian
• URN:NBN: urn:nbn:hr:149:041366
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-04-28 11:54:02