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Title:Topnost organskih spojin v plinih visoke gostote ter matematično modeliranje podatkov
Authors:ID Čuš, Katja (Author)
ID Škerget, Mojca (Mentor) More about this mentor... New window
ID Knez Marevci, Maša (Comentor)
Files:.pdf MAG_Cus_Katja_2017.pdf (3,02 MB)
MD5: B15F7830C31A7195442C30D24A179A82
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Cilj diplomske naloge je bil določiti topnost organske spojine (metil acetata) v plinih visoke gostote (tj. superkritičnih fluidih: CO2, N2, Ar) s pomočjo statično-analitične metode ter matematično modelirati podatke s pomočjo programa Microsoft Office Excel. Namen modeliranja je bil korelirati že obstoječe podatke in napovedati obnašanje sistema v regijah, kjer eksperimentalni rezultati niso dosegljivi. Vse meritve smo izvajali v visokotlačnem avtoklavu. Rezultati prikazujejo kako lahko majhne spremembe temperature in/ali tlaka povzročijo velike spremembe gostote topila (CO2, N2, Ar) in s tem različne vzajemne topnosti v sistemu snov/superkritični fluid. Eksperimente smo izvajali pri treh različnih temperaturnih pogojih (40 °C, 60 °C in 80 °C) v območju relativno nizkih tlakov (10-170 bar). Ugotovili smo, da se s povečanjem tlaka masni delež zmanjšuje, gostota pa se zmanjšuje s temperaturo in povečuje tlakom.
Keywords:metil acetat, topnost, superkritični fluidi, binarni sistem, matematično modeliranje
Place of publishing:Maribor
Publisher:[K. Čuš]
Year of publishing:2017
PID:20.500.12556/DKUM-64885 New window
UDC:676.014.36:54-139(043.2)
COBISS.SI-ID:20410646 New window
NUK URN:URN:SI:UM:DK:WRKXE0BF
Publication date in DKUM:25.01.2017
Views:2637
Downloads:142
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:Solubility of organic compounds in dense gases and mathematical modeling
Abstract:The aim of the thesis was to determine the solubility of organic compounds (methyl acetate) in dense gases (i.e.: supercritical fluids: CO2, N2, Ar) by static-analytic method and mathematical data modelling by using Microsoft Office Excel. The goal of modeling was to correlate the existing data and to predict the system behaviour in regions where experimental results are not available. For all measurements, a high-pressure autoclave was used. The present thesis reviews how small temperature and/or pressure changes result in large changes of solvent density (CO2, N2, Ar) and thus cause a various mutual solubilities in the substance/supercritical fluid system. Experiments were carried out at three different temperature conditions (40 °C, 60 °C in 80 °C) in the range of relatively low pressure conditions (10-170 bar). We have found out that by increasing the pressure mass fraction starts to decrease. Furthermore, density decreases with temperature and increases with pressure.
Keywords:methyl acetate, solubility, supercritical fluids, binary system, mathematical modeling


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