화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.19, No.2, 677-685, March, 2013
DOI10.1016/j.jiec.2012.10.006  Export Citation
Role of critical concentration of PEI in NMP solutions on gas permeation characteristics of PEI gas separation membranes
Ahmad Arabi Shamsabadi, Ali Kargari1, Masoud Bahrami Babaheidari†, Saeed Laki1, and Hadi Ajami
  • Petroleum University of Technology, Ahwaz, Iran
  • 1Membrane Processes Research Laboratory (MPRL), Department of Petrochemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr Campus, Mahshahr, Iran
E-mail:
In preparation of polymeric gas separation membranes by phase inversion method, polymer concentration is one of the most important variables which can change membrane morphology and behavior. In this research, critical concentration of the polyetherimide (PEI) solutions in N-methyl-2-pyrrolidone (NMP) as a solvent was determined by viscometric method. The influence of temperature on critical concentration was studied. Three asymmetric PDMS/PEI membranes with different concentrations of PEI were prepared and characterized for H2/CH4 separation. The results showed that the membranes with higher concentrations than critical concentration were more suitable for gas separation. In addition, the viscosity data were fitted by appropriate equations and the densities were satisfactorily correlated by a simple first-order polynomial with respect to temperature and the PEI mass fraction. The prepared membrane showed the selectivity of 26 for H2/CH4 separation at 1 bar and 25 ℃ for pure gas and 24.8 for mixed gas. The influence of the pressure on the H2 and CH4 permeance and the selectivity for a mixed binary gas showed that the permeance of both gases declined by pressure enhancement and the selectivity increased.
Keywords:Gas separation;Critical concentration;Polyetherimide;NMP;Viscosity;Density
  1. Li Y, Chung TS, J. Membr. Sci., 350(1-2), 226 (2010)
  2. Syrtsova DA, Borisevich OB, Shkrebko OA, Teplyakov VV, Grinshpan DD, Khotimskii V, Roizard D, Sep. Purif. Technol., 57(3), 435 (2007)
  3. Ravanchi MT, Kaghazchi T, Kargari A, Desalination, 235(1-3), 199 (2009)
  4. Baker RW, Ind. Eng. Chem. Res., 41(6), 1393 (2002)
  5. Staudt-Bickel C, Koros WJ, J. Membr. Sci., 155(1), 145 (1999)
  6. Xing R, Winston Ho WS, Journal of the Taiwan Institute of Chemical Engineers., 40, 654 (2009)
  7. Wang DL, Li K, Teo WK, J. Membr. Sci., 138(2), 193 (1998)
  8. Barbari TA, Koros WJ, Paul DR, Journal of Membrane Science., 42, 69 (1989)
  9. Peinemann KV, Method for producing an integral asymmetric membrane and the resultant membrane, U.S. Patent 4,673,418 (1987)
  10. Kneifel K, Peinemann KV, Journal of Membrane Science., 65, 295 (1992)
  11. Kurdi J, Tremblay AY, Polymer, 44(16), 4533 (2003)
  12. Ren JZ, Zhou JQ, Deng MC, Sep. Purif. Technol., 74(1), 119 (2010)
  13. Peng N, Chung TS, Chng ML, Aw WQ, J. Membr. Sci., 360(1-2), 48 (2010)
  14. Simons K, Nijmeijer K, Sala JG, van der Werf H, Benes NE, Dingemans TJ, Wessling M, Polymer, 51(17), 3907 (2010)
  15. Sadrzadeh M, Amirilargani M, Shahidi K, Mohammadi T, J. Membr. Sci., 342(1-2), 236 (2009)
  16. Sadrzadeh M, Shahidi K, Mohammadi T, J. Membr. Sci., 342(1-2), 327 (2009)
  17. Kurdi J, Kumar A, Sep. Purif. Technol., 53(3), 301 (2007)
  18. Zhang LL, He GH, Zhao W, Tan M, Li XC, Sep. Purif. Technol., 73(2), 188 (2010)
  19. Saimani S, Dal-Cin MM, Kumar A, Kingston DM, J. Membr. Sci., 362(1-2), 353 (2010)
  20. Chung TS, Kafchinski ER, J. Appl. Polym. Sci., 65(8), 1555 (1997)
  21. Chung TS, Teoh SK, Hu XD, J. Membr. Sci., 133(2), 161 (1997)
  22. Shil G, Winston Ho WS, Journal of Environmental Engineering and Management., 16, 233 (2006)
  23. Zafarani-Moattar MT, Khoshsisma Z, J. Chem. Thermodyn., 40(11), 1569 (2008)
  24. Thomas S, Pinnau I, Du NY, Guiver MD, J. Membr. Sci., 333(1-2), 125 (2009)
  25. Eliassi A, Modarress H, J. Chem. Eng. Data, 43(5), 719 (1998)
  26. Minim LA, Bonomo RCF, Amaral IV, Reis MFT, Oliveira AAA, Minim VPR, J. Chem. Eng. Data, 55(6), 2328 (2010)
  27. Al-Shammari B, Al-Fariss T, Al-Sewailm F, Elleithy R, Journal of King Saud University - Engineering Science., 23, 9 (2011)
  28. Mohsen-Nia M, Modarress H, Alimohammady F, J. Chem. Eng. Data, 54(4), 1375 (2009)
  29. Ismail AF, Lai PY, Sep. Purif. Technol., 33(2), 127 (2003)
  30. Aroon MA, Ismail AF, Montazer-Rahmati MM, Matsuura T, Sep. Purif. Technol., 72(2), 194 (2010)
  31. Yampolskii Y, Freeman B, Membrane Gas Separation, First edition, A John Wiley & Sons (2010)
  32. Mulder M, Basic Principles of Membrane Technology, 2nd ed., Kluwer Academic Publishers (1996)
  33. Laninovic V, Desalination, 186(1-3), 39 (2005)
  34. Basu S, Cano-Odena A, Vankelecom IFJ, Sep. Purif. Technol., 75(1), 15 (2010)
  35. Liu L, Chakma A, Feng X, Chem. Eng. J., 105(1-2), 43 (2004)