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In relation to this article, we declare that there is no conflict of interest.
Publication history
Received December 2, 2010
Accepted June 8, 2011
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Pervaporation properties of polyvinyl alcohol/ceramic composite membrane for separation of ethyl acetate/ethanol/water ternary mixtures

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, 5 Xinmofan Road, Nanjing 210009, P. R. China
wqjin@njut.edu.cn
Korean Journal of Chemical Engineering, February 2012, 29(2), 228-234(7), 10.1007/s11814-011-0154-x
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Abstract

In further purification of ethyl acetate (EAC) process, azeotropic distillation or extractive distillation is usually applied. High energy consumption limits the economic profit of the process. In this study, pervaporation separation of EAC/ethanol (EA)/water ternary mixtures using the ceramic-supported polyvinyl alcohol (PVA) composite membrane was investigated to substitute the azeotropic distillation or extractive distillation. Swelling experiments were performed to evaluate the sorption characteristic of the membrane. Flory-Huggins theory was applied to study the interaction between the membrane and the penetrant. The UNIFAC model was adopted to investigate the variation of the penetrant activity in the membrane. The effects of operation temperature, feed water content and feed flow rate on the PV performance of the membrane were systematically investigated. The composite membrane exhibited high PV performance with the total flux of 2.1 kg·m^(-2)·h^(-1) and 94.9 wt% permeate concentration of water (operation condition: feed composition 82.6 wt% EAC, 8.4 wt% EA, 9 wt% water, feed temperature 60℃ , feed flow rate 252 mL·min^(-1)). The PV performance of the membrane varied slightly over a continuous PV experiment period of 110 h. Our results demonstrated that the PVA/ceramic membrane was a potential candidate for the purification of EAC/EA/water ternary mixtures.

References

Dutia P, Chemical Weekly-Bombay-., 49, 176 (2004)
Szanyi A, Mizsey P, Fonyo Z, Ind. Eng. Chem. Res., 43(26), 8269 (2004)
Feng XS, Huang RY, Ind. Eng. Chem. Res., 36(4), 1048 (1997)
Chapman PD, Tan XY, Livingston AG, Li K, Oliveira T, J. Membr. Sci., 268(1), 13 (2006)
Sommer S, Melin T, Chem. Eng. Process., 44(10), 1138 (2005)
Devi DA, Smitha B, Sridhar S, Jawalkar SS, Aminabhavi TM, J. Chem. Technol. Biotechnol., 82(11), 993 (2007)
Chang KS, Huang YH, Lee KR, Tung KL, J. Membr. Sci., 354, 93 (2010)
Mao ZM, Cao YM, Jie XM, Kang GD, Zhou MQ, Yuan Q, Sep. Purif. Technol., 72(1), 28 (2010)
Jiang LY, Chung TS, Rajagopalan R, AIChE J., 53(7), 1745 (2007)
Chang JH, Yoo JK, Ahn SH, Lee KH, Ko SM, Korean J. Chem. Eng., 15(1), 28 (1998)
Choi HS, Hong SD, Hwang GJ, Park CS, Bae KK, Onuki KR, Korean J. Chem. Eng., 23(2), 288 (2006)
Nguyen HH, Jang NJ, Choi SH, Korean J. Chem. Eng., 26(1), 1 (2009)
Salt Y, Hasanoglu A, Salt I, Keleser S, Ozkan S, Dincer S, Vacuum., 79, 215 (2005)
Shaban HI, J. Appl. Polym. Sci., 70(12), 2361 (1998)
Yuan HK, Xu ZL, Shi JH, Ma XH, J. Appl. Polym. Sci., 109(6), 4025 (2008)
Devi DA, Raju KVSN, Aminabhavi TM, J. Appl. Polym. Sci., 103(5), 3405 (2007)
Zhu YX, Xia SS, Liu GP, Jin WQ, J. Membr. Sci., 349, 341 (2010)
Zhang XH, Liu QL, Xiong Y, Zhu AM, Chen Y, Zhang QG, J. Membr. Sci., 327(1-2), 274 (2009)
Xia SS, Dong XL, Zhu YX, Wei W, Xiangli FJ, Jin WQ, Sep. Purif. Technol., 77(1), 53 (2011)
Wijmans JG, Baker RW, J. Membr. Sci., 107(1-2), 1 (1995)
Oishi T, Prausnitz JM, Ind. Eng. Chem. Process Des. Dev., 17, 333 (1978)
Fredenslund A, Gmehling J, Rasmussen P, Vapour-Liquid Equilibria Using UNIFAC, Elsevier Science Publishers B V, Amsterdam (1977)
Xiangli FJ, Chen YW, Jin WQ, Xu NP, Ind. Eng. Chem. Res., 46(7), 2224 (2007)
Mulder MHV, Smolders CA, J. Membr. Sci., 17, 289 (1984)
Chang KS, Hsiung CC, Lin CC, Tung KL, J. Phys. Chem. B, 113(30), 10159 (2009)

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