Enhanced Separation Performance of Stabilized Olefin Transport Membranes with High-Molecular-Weight Poly(ethylene oxide)

Il Seok Chae; Sang Wook Kang

Macromolecular Research, Vol.27, No.5, 511-514, May, 2019

DOI10.1007/s13233-019-7066-8 Export Citation

Enhanced Separation Performance of Stabilized Olefin Transport Membranes with High-Molecular-Weight Poly(ethylene oxide)

Il Seok Chae, and Sang Wook Kang^{1, †}

Department of Energy Engineering, Hanyang University, Seoul 04763, Korea
¹Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Korea

E-mail:

We found that membranes consisting of poly(ethylene oxide) (PEO), AgBF4, and Al(NO3)3 exhibit relatively high permeance, i.e., 20 gel permeation unit (GPU) with a mixed-gas selectivity of 10 for propylene/propane separation. To enhance separation, high-molecular-weight PEO was utilized as polymer matrix. As a result, when 9.0×105 g/mol PEO was utilized, the PEO/AgBF4/Al(NO3)3 electrolyte membranes showed permeance of 32 GPU with a selectivity of 11, as well as demonstrating long-term stability. It was found that longer polymer chains could enable extensive segmental motions that enhance olefin diffusion, thereby improving gas performance. Furthermore, the more viscous aqueous solution of high-molecular-weight PEO enabled the formation of a thinner layer, thus improving the mix-gas permeance of the membrane, using the same conditions as low-molecular-weight PEOs. The coordination interactions of metal ions and ether moieties in the same electrolyte membrane were investigated by FT-IR and X-ray photoelectron spectroscopy.

Keywords:facilitated transport;membrane;PEO;molecular weight;olefin

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[2] Ren T, Patel M, Blok K, Energy, 31(4), 425 (2006)

[3] Ruthve DM, Reyes SC, Microporous Mesoporous Mater., 104, 59 (2007)

[4] Krokidas P, Castier M, Economou IG, J. Phys. Chem. C, 121, 17999 (2017)

[5] Verploegh RJ, Nair S, Sholl DS, J. Am. Chem. Soc., 137(50), 15760 (2015)

[6] Lee MJ, Hamid MRA, Lee J, Kim JS, Lee YM, Jeong HK, J. Membr. Sci., 559, 28 (2018)

[7] Herm ZR, Bloch ED, Long JR, Chem. Mater., 26, 323 (2014)

[8] Yu J, Wang CQ, Xiang L, Xu YZ, Pan YC, Chem. Eng. Sci., 179, 1 (2018)

[9] Gucuyener C, van den Bergh J, Gascon J, Kapteijn F, J. Am. Chem. Soc., 132(50), 17704 (2010)

[10] Li B, Wang H, Chen B, Chem. Asian J., 9, 1474 (2014)

[11] Li B, Wen HM, Zhou W, Chen B, J. Phys. Chem. Lett., 5, 3468 (2014)

[12] Lee JH, Kwon HT, Bae S, Kim J, Kim JH, Sep. Purif. Technol., 207, 427 (2018)

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[17] Azhin M, Kaghazchi T, Rahmani M, J. Ind. Eng. Chem., 14(5), 622 (2008)

[18] Hong SU, Jin JH, Won J, Kang YS, Adv. Mater., 12(13), 968 (2000)

[19] Staudt-Bickel C, Koros WJ, J. Membr. Sci., 170(2), 205 (2000)

[20] Giannakopoulos IG, Nikolakis V, Ind. Eng. Chem. Res., 44, 226 (2004)

[21] Chng ML, Xiao Y, Chung TS, Toriida M, Tamai S, Carbon, 47, 1857 (2009)

[22] Li FY, Li Y, Chung TS, Kawi S, J. Membr. Sci., 356(1-2), 14 (2010)

[23] Qiao ZH, Wang Z, Zhang CX, Yuan SJ, Zhu YQ, Wang JX, Wang SC, AIChE J., 59(1), 215 (2013)

[24] Pinnau I, Toy LG, J. Membr. Sci., 184(1), 39 (2001)

[25] Pinnau I, Toy LG, Casillas C, US Patent 5,670,051 (23 Sep. 1997).

[26] Ryu JH, Lee H, Kim YJ, Kang YS, Kim HS, Chem. Eur. J., 7, 1525 (2001)

[27] Kang SW, Kim JH, Won J, Kang YS, J. Membr. Sci., 445, 156 (2013)

[28] Song D, Kang YS, Kang SW, J. Membr. Sci., 474, 273 (2015)

[29] Li Y, Hu Y, RSC Adv., 4, 51022 (2014)

[30] Nakajima K, Nagaoka S, Kawakami H, Polym. Adv. Technol., 14, 433 (2003)

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