Oxidation behavior of cyclohexane on alumina-supported manganese oxides with ozone

Hisahiro Einaga, Shigeru Futamura

研究成果: Contribution to journalArticle査読

107 被引用数 (Scopus)

抄録

Catalytic oxidation of cyclohexane with ozone was carried out over alumina-supported manganese oxides at 295 K. The catalytic activities decreased steeply with time on stream, and then reached a steady state. At the steady state, the mole fractions of CO2 and CO were 90 and 10%, respectively, with the carbon balance of around 50%. The decomposition ratio was estimated to be 8-10, independent of Mn loadings and support materials. Partially oxidized compounds including alcohols, ketones, acid anhydrides and carboxylic acids were formed on the catalyst surface. These compounds were decomposed by ozone feed. On the other hand, highly resistant species containing C=O, COO- and CH groups remained on the catalyst surface, which caused the gradual deactivation of the catalyst. The C=O groups were decomposed at relatively lower temperatures (<473 K), while higher temperature (>473 K) was necessary to decompose the COO- and CH groups.

本文言語英語
ページ(範囲)49-55
ページ数7
ジャーナルApplied Catalysis B: Environmental
60
1-2
DOI
出版ステータス出版済み - 9 1 2005
外部発表はい

All Science Journal Classification (ASJC) codes

  • 触媒
  • 環境科学(全般)
  • プロセス化学およびプロセス工学

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