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undergraduate thesis
Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2)
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. urn:nbn:hr:149:038900
Perinić, Hana
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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Perinić, H. (2022). Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2) (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:038900

Perinić, Hana. "Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2)." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:149:038900

Perinić, Hana. "Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2)." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:149:038900

Perinić, H. (2022). 'Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2)', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:038900

Perinić H. Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2) [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2022 [cited 2024 November 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:038900

H. Perinić, "Eksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2)", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:149:038900

Metadata
TitleEksperimentalno određivanje i modeliranje ravnoteže para-kapljevina u sustavu cikloheksan(1) - izopropanol(2)
Title (english)Experimental determination and modeling of vapor-liquid equilibria in the cyclohexane(1) - isopropanol(2) system
AuthorHana Perinić
MentorMarko Rogošić (mentor)
Committee memberMarko Rogošić (predsjednik povjerenstva)
Committee memberAleksandra Sander (član povjerenstva)
Committee memberKristina Zagajski Kučan (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2022-09-20, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Fazna ravnoteža para–kapljevina u sustavu cikloheksan (1) – izopropanol (2) odredila se pri atmosferskom tlaku primjenom Hunsmannove aparature. Iz dobivenog dijagrama vrenja vidljivo je da je riječ o azeotropnom sustavu s minimumom vrelišta. Za usporedbu eksperimentalnih i literaturnih podataka izabran je skup literaturnih podataka koji pripada trećem razredu termodinamičke konzistentnosti prema Van Nessovu testu. Usporedbom se uočava odstupanje: udio cikloheksana u kapljevitoj fazi pri udjelima cikloheksana manjim od azeotropnog i udio cikloheksana u parnoj fazi pri udjelima cikloheksana većim od azeotropnog veći je kod eksperimentalnih podataka, a azeotropna točka postiže se pri nižim udjelima cikloheksana kod literaturnih podataka. Provedeno je određivanje temperaturno ovisnih parametara modela Wilson, NRTL i UNIQUAC za literaturne podatke, a vrijednost parametra neslučajnosti kod modela NRTL fiksirana je na α12 = 0,3. Najprikladniji model za opis podataka određuje se na temelju funkcije cilja čija je vrijednost najniža za Wilsonov model. Proveden je proračun jednokratnog isparavanja pri konstantnom tlaku i temperaturi kako bi se usporedili eksperimentalni podaci s modelima Wilson, NRTL i UNIQUAC. Parametri modela UNIQUAC zbog osjetljivosti modela nisu primjenjivi za skup eksperimentalnih podataka predstavljen u ovom radu.
Abstract (english)
The vapor-liquid equilibrium in the cyclohexane (1) – isopropanol (2) system was determined at atmospheric pressure using the Hunsmann's apparatus. According to the resulting boiling point diagram, the system is an azeotrope with a minimum boiling point. A set of literature data belonging to the third class of thermodynamic consistency according to the Van Ness test was chosen for a comparison with experimental data. The comparison shows a deviation: the molar fraction of cyclohexane in the liquid phase at cyclohexane contents lower than the azeotropic one and the molar fraction of cyclohexane in the vapor phase cyclohexane contents higher than the azeotropic one are higher for experimental data, whereas the azeotropic point is reached at lower mole fraction of cyclohexane for literature data. The temperature-dependent parameters of the Wilson, NRTL and UNIQUAC models were determined for literature data, and the non-randomness parameter value of the NRTL model was fixed at α12= 0,3. The most suitable model to describe data is determined based on the objective function whose value is the lowest for the Wilson model. An isothermal flash calculation was performed to compare the experimental data with the Wilson, NRTL, and UNIQUAC models. Due to model’s sensitivity, the parameters of the UNIQUAC model are not applicable for the set of experimental data presented in this paper.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:038900
Study programmeTitle: Chemical Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-03-13 07:57:51