Ultrafiltracija oljno-vodne emulzije z membrano iz poliakrilonitrila

diplomsko delo univerzitetnega študijskega programa

Jožica Horvat (Author), Marjana Simonič (Mentor), Andreja Goršek (Co-mentor)

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;ultrafitracija;Taguchijeva metoda;ANOVA;

Data

Language:	Slovenian
Year of publishing:	2013
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[J. Horvat]
UDC:	542.816:665.67(043.2)
COBISS:	17460502
Views:	1939
Downloads:	164
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	ULTRAFILTRATION OF OIL IN WATER EMULSIONS USING PAN MEMBRANE
Secondary 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.
Secondary keywords:	polymer membrane;cooling lubricant;ultrafitration;Taguchi method;ANOVA;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	XI, 71 str.
ID:	8725685