Dehydroisomerization of Butane into Isobutene over Platinum-loaded MFI-type Ferrisilicate Catalysts

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  • Nagata Hideo
    Dept. of Chemical and Biological Engineering, Sasebo National College of Technology
  • Mori Haruki
    Dept. of Chemical and Biological Engineering, Sasebo National College of Technology
  • Kishida Masahiro
    Dept. of Chemical Engineering, Faculty of Engineering, Kyushu University

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Other Title
  • 白金担持MFI型フェリシリケート触媒を用いたブタンの脱水素異性化反応によるイソブテンの合成
  • ハッキン タンジ MFIガタ フェリシリケート ショクバイ オ モチイタ ブタン ノ ダツスイソ イセイカ ハンノウ ニ ヨル イソブテン ノ ゴウセイ

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Abstract

The dehydroisomerization of butane to isobutene was investigated over platinum-loaded MFI-type ferrisilicate catalysts with various silicon-to-iron ratios. The ratios of silicon to iron were observed to affect the yield of isobutene. The highest yield (ca. 15%) was obtained with a ratio of 100, but higher ratios gave lower yields of isobutene caused by the decomposition of butane and butenes. The ratios of silicon to iron did not affect the conversion of butenes over the ferrisilicate catalysts, indicating that the platinum loaded on the ferrisilicate is responsible for the decomposition of butane and butenes. This is supported by the observation that the particle size of platinum on ferrisilicate became smaller with lower ratios of silicon to iron.

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