Synthesis of high-silica CHA type zeolite by interzeolite conversion of FAU type zeolite in the presence of seed crystals

Microporous and Mesoporous Materials 144 巻 1-3 号 91-96 頁 2011 発行
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ファイル情報(添付)
タイトル ( eng )
Synthesis of high-silica CHA type zeolite by interzeolite conversion of FAU type zeolite in the presence of seed crystals
作成者
Itakura Masaya
Goto Ikuhiro
Takahashi Atsushi
Fujitani Tadahiro
Ide Yusuke
収録物名
Microporous and Mesoporous Materials
144
1-3
開始ページ 91
終了ページ 96
抄録
The influence of seed crystals on the interzeolite conversion of FAU type zeolite into CHA type zeolite was investigated in the presence of benzyltrimethylammonium hydroxide as a structure-directing agent under various hydrothermal synthesis conditions. Pure and highly crystalline CHA type zeolites with a wide range of Si/Al ratios were obtained in a shorter crystallization time as compared with those obtained without seed crystals. Furthermore, we achieved the first successful synthesis of high-silica CHA type zeolite in the absence of Na(+) cations by increasing the seed content. The protonated CHA type zeolite with a Si/Al ratio of ca. 15 yielded the highest propylene yield of ca. 48 C-% in ethanol conversion into light olefins.
著者キーワード
Interzeolite conversion
FAU type zeolite
CHA type zeolite
Seed crystal
Ethanol conversion
NDC分類
生物科学・一般生物学 [ 460 ]
言語
英語
資源タイプ 学術雑誌論文
出版者
Elsevier Science BV
発行日 2011
権利情報
(c) 2011 Elsevier B.V. All rights reserved.
出版タイプ Author’s Original(十分な品質であるとして、著者から正式な査読に提出される版)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 1387-1811
[DOI] 10.1016/j.micromeso.2011.03.041
[NCID] AA11538251
[DOI] http://dx.doi.org/10.1016/j.micromeso.2011.03.041