화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.38, No.1, 104-113, January, 2021
DOI10.1007/s11814-020-0650-y  Export Citation
Effect of halloysite nanotubes incorporation on morphology and CO2/CH4 separation performance of Pebax-based membranes
Seyed Mohammad Ali Ahmadi, Toraj Mohammadi†, and Navid Azizi
  • Center of Excellence for Membrane Science and Technology, School of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran
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Mixed-matrix gas separation membranes were prepared by embedding various content of halloysite nanotubes (HNTs) (0, 0.5, 1, 1.5, and 2 wt%) within poly (ether-block-amide) matrix. XRD, FT-IR, TGA, and SEM analyses were conducted to study crystal structure, chemical bonds changes, thermal resistance, and cross-sectional morphology of the resultant membranes, respectively. Permeability values of pure CH4 and CO2 gases through the synthesized neat and mixed-matrix membranes (MMMs) were experimentally determined at constant temperature (25 °C) and several pressures (4, 6, 8, and 10 bar). The obtained results exhibited improved CO2 permeability of the MMMs comparing with the pristine Pebax membrane. As an example, at a pressure of 4 bar, raising the incorporated HNTs loading from 0 to 2wt% enhanced the permeability of CO2 from 76.50 to 101.23 Barrer.
Keywords:CO2/CH4 Separation;Pebax-1657-based Mixed-matrix Membrane;Halloysite Nanotubes
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