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Reverse‐Selective Microporous Membrane for Gas Separation |
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| Authors: | Ken‐ichi Sawamura Dr Teruaki Izumi Kiyotoshi Kawasaki Shintaro Daikohara Tetsu Ohsuna Prof Mitsuko Takada Dr Yasushi Sekine Prof Eiichi Kikuchi Prof Masahiko Matsukata Prof |
| Institution: | 1. Department of Applied Chemistry, Waseda University, 3‐4‐1 Okubo, Shinjuku‐ku, Tokyo 169‐8555 (Japan), Fax: (+81)?3‐5286‐3850;2. Kagami Memorial Research Institute for Materials Science and Technology, Waseda University, 2‐8‐26 Nishiwaseda, Shinjuku‐ku, Tokyo 169‐0051 (Japan);3. Advanced Research Institute for Science and Engineering, Waseda University, 3‐4‐1 Okubo, Shinjuku‐ku, Tokyo 169‐8555 (Japan) |
| Abstract: | 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.  |
| Keywords: | gas separation membranes microporous materials transmission electron microscopy zeolites |