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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2015.25.4.352

Study on the Pervaporation Seperation of Aqueous 1-Butanol Mixture Using Composite PEI/PDMS Membrane  

Cheon, Bong su (Department of Chemical Engineering, Hannam University)
Lee, Choong Sub (Airrane Co. Ltd.)
Ha, Sung Yong (Airrane Co. Ltd.)
Rhim, Ji Won (Department of Chemical Engineering, Hannam University)
Publication Information
Membrane Journal / v.25, no.4, 2015 , pp. 352-357 More about this Journal
Abstract
To determine the pervaporation separation characteristics of 1-butanol/water mixtures, PEI/PDMS hollow fiber membrane module commercialized by Airrane Co. was subjected to both lab and pilot tests. The 1% 1-butanol of 1-butanol/water feed mixture was used. The flux of $133g/m^2hr$ and separation factor of 23.4 at $30^{\circ}C$ were obtained whereas the $505g/m^2hr$ and 5.1 were measured at $50^{\circ}C$. When compared with the performance of the hollow fiber PDMS membrane by Nagasep Co., the higher flux of $10{\sim}20g/m^2hr$ was obtained by the module of Airrane Co. In order to realized the durability of Airrane Co. module, the long-term test of 35 days has been conducted and as a result, the flux $510{\sim}520g/m^2hr$ and separation factor 20~25 were maintained with the initial values.
Keywords
PEI (poly(ether imide)); PDMS (Poly(demethyl siloxane)); Composite membrane; Pilot test; 1-Butanol; Pervaporation;
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