昇温硫化-ESR併用法 (TPS-ESR法) を用いたCoMo-Al<sub>2</sub>O<sub>3</sub>触媒のキャラクタリゼーション

DOI Web Site Web Site 参考文献20件
  • 林 英治
    Research Institute, King Fahd University of Petroleum and Minerals
  • 岩松 栄治
    Research Institute, King Fahd University of Petroleum and Minerals
  • AHMED Shakeel
    Research Institute, King Fahd University of Petroleum and Minerals
  • LEE Augustine K.K.
    Research Institute, King Fahd University of Petroleum and Minerals
  • HAMID Halim
    Research Institute, King Fahd University of Petroleum and Minerals
  • 真田 雄三
    Research Institute, King Fahd University of Petroleum and Minerals
  • 米田 俊一
    (財) 石油産業活性化センター石油基盤技術研究所高機能触媒研究室

書誌事項

タイトル別名
  • Characterization of CoMo-Al2O3 Catalyst by Combination Technique of Temperature-programmed Sulfiding and Electron Spin Resonance(TPS-ESR).
  • Characterization of CoMo-Al2O3 Catalyst

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抄録

CoMo-Al2O3 catalyst was characterized with a combination technique of temperature-programmed sulfiding (TPS) and electron spin resonance (ESR). The behavior of the MoO3 loaded over the surface of Al2O3 obtained from TPS has been compared with that of Mo5+ observed with ESR at isothermal and elevated temperatures. The Mo6+ in the MoO3 supported is easily reduced with H2S+H2 under very mild conditions and transformed into Mo5+ as an intermediate. This Mo5+ peak drastically decreased around 200°C with H2S desorption, and H2 consumption appeared simultaneously in the TPS profile. These results suggest that the Mo5+ species observed with ESR associates with sulfur from H2S.

収録刊行物

  • 石油学会誌

    石油学会誌 41 (3), 222-226, 1998

    公益社団法人 石油学会

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