미세 다공성 중공사 PVA복합막을 이용한 에탄올 수용액의 투과증발분리 특성
Pervaporation Separation Characteristics for Water-Ethanol Mixtures Using Porous Hollow Fiber PVA Composite Membranes
(Received October 3, 2013, Revised October 22, 2013, Accepted October 23, 2013)
Abstract
The Poly (vinylidene fluoride) and poly (acrylonitrile) (PAN) hollow fiber composite membranes coated withpoly (vinyl alcohol) (PVA) and poly (acrylic acid) (PAA) as the crosslinkig agent are prepared. The resulting membraneswere characterized for aqueous 90 wt% ethanol solution by pervaporation techniques in terms of the permeability and separationfactor. In general, as both the crsslinking reaction temperature and the crosslinking agent concentration increase, thepermeability decrease while the separation factor tends to increase. And also the permeability increased and the separationfactor decreased as the feed temperature increased. Typically, the permeability 502 g/m2hr at the feed temperature 70°C wasobtained for PVDF hollow fiber membrane prepared with the crosslinking agent PAA 3 wt% at the reaction temperature60°C whereas the separation factor 218 was shown for the membrane reacted with PAA 11 wt% and at 100°C for the feedtemperature 50°C.
poly (vinylidene fluoride),poly (acrylonitrile),poly (vinyl alcohol),poly (acrylic acid),ethanol,pervaporation,Water-Ethanol,hollow fiber
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Reference
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3.C. K. Yeon and K. H. Lee, "Pervaporation separation of water-acetic acid mixture through poly (vinyl alcohol) membranes crosslinked with glutaraldehyde", J. Membr. Sci., 109, 257 (1996).
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6.I. A. Yum, M. H. Yun, and Y. T Lee, "Pervaporation Characteristics of Ion-exchanged NaA Type Zeolite Membranes", Membrane Journal, 19, 189 (2009).
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14.Q. L. Liu, Z. Zhang, and H. F. Chen,"Study on the couplong of esterification with pervaporation", J. Membr. Sci., 182, 173 (2001).
15.Y. S. Zhu and H. F. Chen, "Pervaporation separation and pervaporation-esterification coupling using crosslinked PVA composite catalytic membranes on porous ceramic plate", J. Membr. Sci., 139, 123 (1998).
16.http://www.sulzerchemtech.com/
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18.H. C. Park and R. M. Meertens, "Sorption of alcohol- toluene mixtures in poly (acryic acid) - poly (vinyl alcohol) blend membranes and its role on pervaporation", In. Eng. Chem. Res., 37, 4408 (1998).
2.S. Y. Nam, H. J. Chun, and Y. M. Lee, "Pervaporation separation of water-isopropanol mixture using carboxymethylated poly (vinyl alcohol) composite membranes", J. Appl. Polym. Sci., 72, 241 (1999).
3.C. K. Yeon and K. H. Lee, "Pervaporation separation of water-acetic acid mixture through poly (vinyl alcohol) membranes crosslinked with glutaraldehyde", J. Membr. Sci., 109, 257 (1996).
4.H. Ohya, K. Matsumoto, Y. Negishi, T. Hino, and H. S. Choi, "The separation of water and ethanol by pervaporation with PVA/PAN composite membranes", J. Membr. Sci., 68, 141 (1992).
5.H. C. Park and M. H. V. Mulder, "Pervaporation of alcohol-toluene mixture through polymer blend membranes of poly (acrylic acid) and poly (vinyl alcohol)", J. Membr. Sci., 90, 265 (1994).
6.I. A. Yum, M. H. Yun, and Y. T Lee, "Pervaporation Characteristics of Ion-exchanged NaA Type Zeolite Membranes", Membrane Journal, 19, 189 (2009).
7.S. M. Ahn, B. J. Chang, J. H. Kim, Y. T. Lee, and S. B. Lee, "Pervaporation Separation of fluoroethanol/ Water Mixture through Crosslinked Poly (vinyl alcohol) Composite Membranes", Membrane Journal, 14, 166 (2004).
8.O. Trifunović and G. Trägardh, "The influence ofsupport layer on mass transport of homologous series of alcohols and esters through composite pervaporation membranes", J. Membr. Sci., 259, 122 (2005).
9.H. S. Choi, Y. T. Park, S. T. Nam, J. H. Jeon, and S. K. Lee, "The Preparation of a Polyimide Membrane for the Separation of Water-Acetic Acid Mixture through Pervaporation", Membrane Journal, 9, 215 (1999).
10.M. S. Peresin, Y. Habibi, J. O. Zoppe, J. J. Pawlak, and O. J. Rojas, "Nanofiber Composite of Polyvinyl Alcohol and Cellulose Nanocrystals," Biomacromol.,, 11, 674 (2010).
11.J. J. Scheibel and L. M. Gray, "Polyvinyl Alcohol Co-polymer and Water-soluble Films and Pouches Formed Therefrom," U. S. Patent. No. 7,714,086 B2 (2010).
12.S. K. Nho, K. H. Choi, J. W. Kwak, and W. S. Lyoo, "Preparation and Application of Poly (Vinyl Alcohol) Having Various Molecular Parameters," Polym. Sci. Technol., 15(1), 4 (2004).
13.S. Y. Kim, H. S. Shin, Y. M. Lee, and C. N. Jeong, "Propertise of electroresponsive poly (vinyl alcohol) / poly (acrlic acid) IPN hydrogels under an electric stimulus", J. App. Polym. Sci., 73, 1675 (1999).
14.Q. L. Liu, Z. Zhang, and H. F. Chen,"Study on the couplong of esterification with pervaporation", J. Membr. Sci., 182, 173 (2001).
15.Y. S. Zhu and H. F. Chen, "Pervaporation separation and pervaporation-esterification coupling using crosslinked PVA composite catalytic membranes on porous ceramic plate", J. Membr. Sci., 139, 123 (1998).
16.http://www.sulzerchemtech.com/
17.P. Shweta, "Poly (Vinyl Alcohol) / Cellulose Nanocomposite Barrier Films," Oregon State, US, (2006).
18.H. C. Park and R. M. Meertens, "Sorption of alcohol- toluene mixtures in poly (acryic acid) - poly (vinyl alcohol) blend membranes and its role on pervaporation", In. Eng. Chem. Res., 37, 4408 (1998).