Direct Decomposition of Organic Sulfur Compounds Using Acid Properties of Zeolite

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  • Oshima Kazumasa
    Department of Chemical Engineering, Faculty of Engineering, Kyushu University
  • Satokawa Shigeo
    Department of Applied Chemistry, Faculty of Science and Engineering, Seikei University

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Other Title
  • ゼオライトの酸性質を利用した有機硫黄化合物の直接分解
  • ゼオライト ノ サンセイシツ オ リヨウ シタ ユウキ イオウ カゴウブツ ノ チョクセツ ブンカイ

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Description

To develop an efficient removal process for sulfur species in natural gas and city gas, we investigated the direct decomposition reactions of TBM ((CH3)3CSH) and DMS (CH3SCH3) using zeolite. H-FAU and H-Beta zeolite was effective in direct decomposition of TBM, and showed stable activity even at 150°C. In addition, the reaction mechanism revealed that large pores with three-dimensional channels were important for the TBM decomposition. On the other hand, in direct DMS decomposition, transition metal cation modification onto an H-Beta zeolite was effective, and the reaction temperature could be significantly lowered by the Co ion modification. We have shown that organic sulfur compounds can be efficiently converted by controlling the pore structure and acid properties of zeolite.

Journal

  • ゼオライト

    ゼオライト 41 (2), 64-70, 2024-04-15

    Japan Association of Zeolite

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