Gas Permeation Properties and Methylation of Toluene by MFI Zeolite Membranes with Different Si/Al Rations

• Takata Yuko

  Department of Chemical Engineering, Hiroshima University

• Tsuru Toshinori

  Department of Chemical Engineering, Hiroshima University

• Yoshioka Tomohisa

  Department of Chemical Engineering, Hiroshima University

• Asaeda Masashi

  Department of Chemical Engineering, Hiroshima University

Bibliographic Information

Other Title

• Ｓｉ／Ａｌ比の異なるＭＦＩ型ゼオライト薄膜の気体透過特性とトルエンのメチル化反応
• 分離工学 Si/Al比の異なるMFI型ゼオライト薄膜の気体透過特性とトルエンのメチル化反応
• ブンリ コウガク Si Alヒ ノ コトナル MFIガタ ゼオライト ハクマク ノ キタイ トウカ トクセイ ト トルエン ノ メチルカ ハンノウ

Abstract

MFI zeolite membranes having different Si/Al ratios were prepared by secondary growth of crystalline colloidal seeds under hydrothermal conditions. An MFI membrane of Si/Al=∞ showed a n-C₄H₁₀ permeance of 1.5×10⁻⁵ m³ (STP)m⁻² s⁻¹ kPa⁻¹ and a n/i-C₄H₁₀ selectivity of 15 at 150° C. By addition of Al into MFI membranes, the zeolite layers appeared to be randomly oriented, and n/i-C₄H₁₀ selectivities were decreased. Methylation of toluene using MFI catalytic membrane reactors was carried out at 400–500° C. Toluene conversions increased with reaction temperature and a maximal p-xylene selectivity of 80% was achieved. suggesting the effectiveness of MFI catalytic membrane reactors.

Journal

• KAGAKU KOGAKU RONBUNSHU

  KAGAKU KOGAKU RONBUNSHU 29 (3), 427-431, 2003

  The Society of Chemical Engineers, Japan

Keywords

• ZSM-5
• membrane
• gas permeance
• methylation of toluene
• <i>p</i>-xylene selectivity

Details

• CRID: 1390282679486067968
• NII Article ID: 130000134884
• NII Book ID: AN00037234
• DOI: 10.1252/kakoronbunshu.29.427
• ISSN: 13499203
• ISSN: 0386216X
• NDL BIB ID: 6596364
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6596364
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu/29/3/29_3_427/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed