Fundamental study on membrane separation using unique separation properties of microporous thin films

我们已经进行了基础研究，以开发无机膜使用结晶微孔材料。本研究的最终目标是通过创造新型膜材料，为未来能源和化工过程的进一步绿色化做出贡献。本研究的目的是详细阐明膜的形成途径和形成机理，提取选择性渗透的影响因素，阐明实现水和有机物混合物膜分离的渗透和分离机理。对于Y型分子筛膜，我们阐明了其成膜机理，并成功地开发了水/异丙醇混合物脱水的高性能膜。本研究中开发的Silicalite-1膜显示出优异的分子筛性能。成功地制定了通过silicalite-1膜的渗透和分离行为。除了沸石膜，我们已经着手制备一种新的膜使用结晶微孔磷酸铝，并开发了一种膜显示出高分离性能的水/乙酸蒸汽混合物。

We have carried out fundamental study for developing inorganic membranes using crystalline microporous materials. The final goal of our study is to contribute to make energy and chemical processes further green in future by creating novel membrane materials. In this study, our target was to clarify formation paths and mechanisms of membrane formation in detail, to extract gavering factors of permselectivity and to elucidate permeation and separation mechanisms for achieving membrane separation of mixtures containing water and orbganic substances. As for Y-type zeolite membrane, we elucidated its membrane formation mechanisms, and successfully developed membranes having high performance for dehydration of water/isopropyl alcohol mixtutes. Silicalite-1 membrane that we developed in this study showed excellent molecular sieving properties. Permeation and separation behavior through silicalite-1 membrane were successfully formulated. Apart from zeolite membrane, we have tackled to prepare a novel membrane using crystalline microporous aluminophospates, and developed a membrane showing high separation performance for water/acetic acid vapor mixture.