Reverse-Selective Microporous Membrane for Gas Separation (pages 1070–1077)
Ken-ichi Sawamura, Teruaki Izumi, Kiyotoshi Kawasaki, Shintaro Daikohara, Tetsu Ohsuna, Mitsuko Takada, Yasushi Sekine, Eiichi Kikuchi and Masahiko Matsukata
Article first published online: 9 JUN 2009 | DOI: 10.1002/asia.200900048
Sort the bigs from the smalls: Reverse-selective membranes, through which bigger molecules selectively permeate, are attractive for developing chemical processes. A new adsorption-based reverse-selective membrane that utilizes a Na cation occluded in a zeolitic framework is presented. The membrane developed enables the selective permeation and separation of bigger polar molecules, such as methanol and water, from hydrogen above 473 K.