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Title:ULTRAFILTRACIJA OLJNO-VODNE EMULZIJE Z MEMBRANO IZ POLIAKRILONITRILA
Authors:Horvat, Jožica (Author)
Simonič, Marjana (Mentor) More about this mentor... New window
Goršek, Andreja (Co-mentor)
Files:.pdf UNI_Horvat_Jozica_2013.pdf (1,83 MB)
 
Language:Slovenian
Work type:Undergraduate thesis (m5)
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Diplomsko delo temelji na čiščenju oljno-vodnih emulzij z ultrafiltracijsko (UF) napravo in uporabo membrane iz poliakrilonitrila (PAN). Cilj raziskovalnega dela je bil preučiti medsebojni vpliv štirih različnih faktorjev (koncentracije olja v emulziji, pH, tlaka in količine soli NaCl) na treh nivojih. Tako smo določili kombinacijo optimalnih obratovalnih pogojev, s katerimi dosežemo čim večjo gostoto volumskega toka permeata in čim manjšo zamašitev por v membrani. Za načrtovanje poskusov smo uporabili Taguchijevo metodo, s katero zmanjšamo število potrebnih eksperimentov. Uporabili smo tudi analizo variance (ANOVA), s katero smo ocenili delež vpliva procesnih parametrov na vrednost optimizacijskega kriterija, v našem primeru je to bila gostota volumskega toka permeata. Za vsak poskus smo si pripravili modelno oljno-vodno emulzijo, ki se uporablja v kovinsko-predelovalni industriji. S pomočjo vseh meritev in rezultatov analiz smo določili učinkovitost posameznih komponent pri določenih pogojih obratovanja. Rezultati so pokazali, da smo najvišjo gostoto volumskega pretoka dosegli pri pH=9, koncentracijo olja, φ 0,5 (v/v%), tlaku, p = 3 bar in koncentraciji soli, γ 1g/L NaCl. Mašenje smo določili na podlagi izračunov znižanja gostote volumskega toka in indeksa mašenja (MFI). Na mašenje membrane najbolj vpliva koncentracija oljno-vodne emulzije.
Keywords:polimerna membrana, hladilno mazalno sredstvo, ultrafiltracija, Taguchijeva metoda, ANOVA
Year of publishing:2013
Publisher:[J. Horvat]
Source:Maribor
UDC:542.816:665.67(043.2)
COBISS_ID:17460502 Link is opened in a new window
NUK URN:URN:SI:UM:DK:KT19VWQX
Views:1504
Downloads:144
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:ULTRAFILTRATION OF OIL IN WATER EMULSIONS USING PAN MEMBRANE
Abstract:The diploma work is based on the treatment of oil in water emulsions with ultrafiltration (UF) using polyacrylonitrile (PAN) membrane. The aim of the research was to investigate the interaction of four factors (concentration of oil in the emulsion, pH, pressure and amount of salt NaCl) at three levels. Thus we determined the optimal combination of operating conditions to achieve the maximum density of permeate flow rate and minimize the fouling of the membrane. For designing experiments, we used the Taguchi method for minimizing the number of necessary experiments. We also used analysis of variance (ANOVA) to evaluate the influence of process parameters on the value of the optimization criterion, in our case this was the density of permeate flow rate. For each experiment, we have prepared a model oil-in-water emulsion, which is used in the metal processing industry. With all measurement’s and analyse’s results we determined the efficiency of individual components at the specified operating conditions. The results showed that the highest density flow was achieved at pH= 9, the concentration of oil, φ=0.5 (v/v %) at p = 3 bar and mass concentration,  = 1 g/L NaCl. Fouling was defined on the basis of calculations of flux reduction and modified fouling index (MFI). Membrane fouling is the most affected by the concentration of oil in emulsions.
Keywords:polymer membrane, cooling lubricant, ultrafiltration, Taguchi method, ANOVA


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