Ravnoteža kapljevina-krutina u otopinama dugolančanih alkana

undergraduate thesis

• Title (english): Solid-liquid equilibria in solutions of long-chain alkanes
• Author: Lorena Mateša
• Mentor: Marko Rogošić (mentor)
• Committee member: Marko Rogošić (predsjednik povjerenstva)
• Committee member: Krunoslav Žižek (član povjerenstva)
• Committee member: Aleksandra Sander (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2019-09-09, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

U radu je istraživana ravnoteža kapljevina-krutina binarnih sustava pri tlaku 1 bar. Eksperimentalni podaci topljivosti za sustave benzen – n-tetradekan, benzen – n-heksadekan, cikloheksan – n-tetradekan, cikloheksan – n-heksadekan, n-tetradekan – n-heksadekan i ntetradekan – n-pentadekan te smjese osam alkana (n-oktadekan, n-eikozan, n-dokozan, ntetrakozan, n-pentakozan, n-heksakozan, n-heptakozan, n-oktakozan) s metil-1,1-dimetiletileterom (MTBE, metil-terc-butil-eter) preuzeti su iz znanstvenih radova i uspoređeni s topljivošću izračunatom pomoću jednadžbe topljivosti i modela koeficijenta aktivnosti. Modeli prema kojima se računala topljivost jesu tro- i četveroparametarski Redlich-Kister model, Wilsonov model, model NRTL te modeli UNIQUAC i UNIFAC. Dobiveni rezultati su tablično prikazani parametri modela za svaki pojedini sustav te grafički prikaz eksperimentalno određene temperature taljenja (kristalizacije) i one određene prema modelima u ovisnosti o sastavu smjese. Raspravljena je primjenjivost pojedinih modela za istraživane sustave.

Abstract (english)

In this paper, solid-liquid equilibria in binary systems at pressure of 1 bar were examined. Experimental solubility data for mixtures: benzene – n-tetradecane, benzene – n-hexadecane, cyclohexane – n-tetradecane, cyclohexane – n-hexadecane, n-tetradecane – n-hexadecane and n-tetradecane – n-pentadecane and mixtures of eight alkanes
(n-octadecane, n-eicosan, ndocosan, n-tetracosan, n-pentacosan, n-hexacosan, n-heptacosan, n-octacosan) with methyl 1,1-dimethylethyl ether (MTBE, methyl tert-butyl ether) were taken from the literature and compared with the solubility calculated using the solubility equation and activity coefficient models. Models used to calculate solubility are three parametric and four parametric Redlich-Kister model, Wilson model, NRTL model and UNIQUAC and UNIFAC models. The results are the parameters of the investigated models presented in a tabular form as well as diagrams involving graphical comparison of experimentally obtained melting (crystallization) temperature for each system and those calculated from activity coefficient models.

• Keywords: fazna ravnoteža kapljevina-krutina; topljivost; fazni dijagram; modeli: troparametarski i četveroparametarski Redlich-Kisterov model; Wilsonov model; NRTL; UNIQUAC; UNIFAC
• Keywords (english): solid-liquid phase equilibria; solubility; phase diagram; models: three parametric and four parametric Redlich-Kister; Wilson; NRTL; UNIQUAC; UNIFAC
• Language: croatian
• URN:NBN: urn:nbn:hr:149:284387
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-05-26 08:22:54