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Received June 11, 2015
Accepted July 30, 2015
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CO2/CH4 separation with poly(4-methyl-1-pentyne) (TPX) based mixed matrix membrane filled with Al2O3 nanoparticles
Department of Chemical Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Iran 1Petroleum Group, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran 2Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran
asaeedi@modares.ac.ir
Korean Journal of Chemical Engineering, February 2016, 33(2), 657-665(9), 10.1007/s11814-015-0168-x
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Abstract
The effect of alumina (Al2O3) nano-particles on gas separation properties of poly(4-methyl-1-pentyne) known as TPX was evaluated. Mixed matrix membranes (MMMs) were prepared with various weight percent (5, 10, 15, 20 and 30) of alumina nano-particles through solution casting along with solvent evaporation method. TPX and consequent MMMs were characterized using FT-IR, SEM and TGA methods. The MMMs permselectivities were determined through pure CO2 and CH4 permeation measurement and CO2/CH4 selectivity calculation. SEM images demonstrated the proper dispersion of alumina nano-particles in TPX matrix. Results from gas permeation showed that the permeability of both CO2 and CH4 as well as CO2/CH4 selectivities were increased with increasing alumina content. Significant increase of CO2 permeability (from 157.43 Barrer at 8 bar and no loading of Al2O3 to 527.78 Barrer at 8 bar and 30 wt% loading of Al2O3) and conspicuous enhancement of selectivity, from 7.73 to 12.51, were obtained in TPX MMMs.
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References
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Santoshf DW, Jyoti PJ, Polym. Int., 53, 101 (2004)
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Samuel EJ, Mohanb S, Spectroc. Acta, 60, 19 (2004)
Zhou H, Chen Y, Fan HJ, Shi HH, Luo ZY, Shi B, J. Membr. Sci., 318(1-2), 71 (2008)
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Cohen MH, Turnbull D, J. Chem. Phys., 31, 1164 (1959)
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Kilic A, Atalay-Oral C, Sirkecioglu A, Tantekin-Ersolmaz SB, Ahunbay MG, J. Membr. Sci., 489, 81 (2015)
Robeson LM, J. Membr. Sci., 320(1-2), 390 (2008)
De Sitter K, Winberg P, D'Haen J, Dotremont C, Leysen R, Martens JA, Mullens S, Maurer FHJ, Vankelecom IFJ, J. Membr. Sci., 278(1-2), 83 (2006)
