COMPUTER-SIMULATION FOR THE PERVAPORATION PROCESS OF WATER ETHANOL MIXTURE THROUGH INTERPENETRATING POLYMER NETWORK (IPN) MEMBRANES

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In this study, the pervaporation behavior of EtOH-water mixture through interpenetrating polymer network (IPN) membranes was predicted. The pervaporation characteristics of single component membranes were modelled according to the "six coefficients model" proposed by Brun et al. [J. Membrane Sci., 23 (1985) 257]. In the case of the IPN membrane, two models were proposed according to the phase structure of the IPN. For a uniphase membrane with no phase separation, the compositional averages of the single component membrane coefficients were used. In the case of the phase separated IPN, two cases exist. The first is the island and sea model: one phase is continuous and the other is discrete. The second is the cocontinuous model, in which two continuous phases exist. For these cases the permeation rate and separation factor of the IPN membrane were calculated using the experimental sorption data and pure component values for each IPN composition. Comparison with the experimental data indicates that these models could be used to predict the performances of IPN membranes depending on the morphology of the IPN.
Publisher
ELSEVIER SCIENCE BV
Issue Date
1992-06
Language
ENG
Article Type
Article
Keywords

LIQUID TRANSPORT

Citation

JOURNAL OF MEMBRANE SCIENCE, v.70, no.2-3, pp.193 - 205

ISSN
0376-7388
DOI
10.1016/0376-7388(92)80105-S
URI
http://hdl.handle.net/10203/2290
Appears in Collection
CBE-Journal Papers(저널논문)
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