論文

2017年

Oxidative dehydrogenation of but-1-ene with lattice oxygen in ferrite catalysts

Applied Catalysis A: General
  • Takayasu Kiyokawa
  • ,
  • Naoki Ikenaga

536
開始ページ
97
終了ページ
103
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.apcata.2017.02.004
出版者・発行元
Elsevier B.V.

The oxidative dehydrogenation (ODH) of but-1-ene was carried out using the lattice oxygen in ferrite catalysts in the temperature range of 200–300 °C with a fixed-bed flow reactor at atmospheric pressure. Various ferrite catalysts, such as NiFe2O4/AC-500, ZnFe2O4/AC-500, CoFe2O4/AC-500, and CuFe2O4/AC-500, -400, -300, -280, were prepared in the presence of activated carbon in the calcination temperature range of 280–500 °C. When but-1-ene-TPR was measured using various ferrite catalysts, CuFe2O4/AC-500 progressed the ODH of but-1-ene at 200–300 °C. Among the catalysts, CuFe2O4/AC-500 showed the highest Buta-1,3-diene (BD) yield, at 270 °C. XRD and XPS analyses of the catalyst after the ODH suggested that the lattice oxygen in Cu-O bonded to the tetrahedral site (Cu2+ T) of the ferrite structure was used for the ODH. In addition, the used catalyst was recovered by re-oxidation with molecular O2. Moreover, CuFe2O4/AC-280, which calcined at 280 °C, had the highest specific surface area and improved the BD yield with an increase in contact area with but-1-ene. In the repeated ODH (reaction and regeneration cycle), CuFe2O4/AC-500 and -280 catalysts maintained BD yields of 7.5% and 11.3%, respectively. BD production is thought to be related to the amount of Cu2+ T.

リンク情報
DOI
https://doi.org/10.1016/j.apcata.2017.02.004
ID情報
  • DOI : 10.1016/j.apcata.2017.02.004
  • ISSN : 0926-860X
  • SCOPUS ID : 85014312913

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