環境調和型液体燃料製造のための新規ナノ構造触媒の 開発 Title Author(s) 楊, 國輝 富山大学地域連携推進機構産学連携部門ベンチャー・ビ ジネス・ラボラトリー年報 = University of Toyama, Org anization for Promotion Regional Collaboration, Co llabpration Division, Venture Business Laboratory VBL annual report, 22: 87-87 Citation Issue Date 2010 Type Article Text version URL publisher http://hdl.handle.net/10110/13900 Rights http://utomir.lib.u-toyama.ac.jp/dspace/ 環境調和型液体燃料製造のための新規ナノ構造触媒の開発 研究員 楊 園輝 Alternative energy sources have moved into the spotlight in recent years with soaring oil prices and dwindling resources. DME is also very promising as a new energy, being available for various purposes. Traditionally, DME can be produced through the methanol dehydration on a single dehydration catalyst or directly 合om syngas on a hybrid catalyst. Here, the hybrid catalyst usually consists of methanol synthesis catalyst and methanol dehydration catalyst. In this project, a series of millimeter-sized zeolite capsule catalyst possessing a special core-shell S仕UC�印re was designed and prepared. The acidic H-ZSM-5 zeolite membrane as the catalyst shell was directly prepared through an unreported way of aluminium-migration丘om the aluminium-containing core catalyst body. Fig. 1 shows the SEM and EDS line analysis result of zeolite capsule catalyst CZA-S. In this SEM image, the zeolite shell can be distinguished easily and is also in good state enwrapping core catalyst CZA. The signal intensity of SiKαexhibited in EDS analysis pa仕em gives the change企om zeolite shell to core catalyst, indicating that the thickness of zeolite shell is about 5 µm. This capsule catalyst was firstly applied to accomplish DME direct synthesis from syngas (STD reaction). The STD reactions on capsule catalyst CZA-Z and CZA-S present the completely different product distributions compared to that of bare CZA and hybrid CZA-M catalyst, as shown in Fig. 2. The selectivity of the expected DME on this zeolite capsule catalyst strikingly exceeded that of the traditional hybrid catalyst (the simple blending of core catalyst and zeolite powder), while maintaining the zero formation of the unexpected alkanes by-product. 100 75 50 Se!. I。/。 25 //CPS Distribution 一一一→ ZnK,α 20 40 D/µm ω 一一一+ Fig. 2 Products distribution of the core Fig. 1 Cross-section SEM姐d EDS analysis of catalyst CZA, zeolite capsule catalyst zeolite capsule catalyst CZA-Z,ーS, and hybrid catalyst CZA-M Publication papers: Guohl日Yang, Noritatsu Tsubaki, Jun Shamoto, Yoshiharu Yoneyama, Yi Zhang, American Chemical Society, 87 Vol. 132, Issue 23, 2010, 8129-8136 Journal of the
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