中华医学超声杂志

应用化学 ›› 1998, Vol. 0 ›› Issue (3): 76-78.

• 研究论文 • 上一篇    下一篇

稀土氟氧化物在丙烷、异丁烷氧化脱氢中的催化作用

张伟德, 洪碧凤, 古萍英, 万惠霖, 蔡启瑞   

  1. 厦门大学化学系, 固体表面物理化学国家重点实验室, 物理化学研究所 厦门361005
  • 收稿日期:1997-10-06 修回日期:1998-01-05 出版日期:1998-06-10 发布日期:1998-06-10
  • 基金资助:
    国家自然科学基金

Catalytic Oxidative Dehydrogenation of Propane and Isobutane over Rare Earth Oxyfluorides

Zhang Weide, Hong Bifeng, Gu Pingying, Wan Huilin, Tsai Khirui   

  1. Department of Chemistry, State Key Laboratory for Physical Chemistry of the Solid Surface and Institute of Physical Chemistry, Xiamen University, Xiamen 361005
  • Received:1997-10-06 Revised:1998-01-05 Published:1998-06-10 Online:1998-06-10

PDF

430

被引次数

3

摘要： 石油、天然气等化石原料的有效利用可以大大提高经济效益和社会效益,引起了越来越多 的重视[1].丙烷、异丁烷广泛存在于油田气和天然气中.经氧化成烯烃或含氧有机物可成为更有价值的基础有机化工原料[2].我们曾经研究稀土含氟复合物在甲烷等低碳烃选择氧化中的作用[3].本工作将讨论丙烷、异丁烷在稀土氟氧化物催化剂上氧化脱氢制相应烯烃.

关键词: 丙烷, 异丁烷, 催化氧化脱氢, 稀土氟氧化物

Abstract: Three rare earth oxyfluorides Sm2O2/4CeF2, Nd2O2/4CeF2 and Y2O2/4CeF2 were prepared. They were active in oxidative dehydrogenation of propane and isobutane with high selectivity to propene and isobutene. The propane is easier to dehydrogenate than isobtuane, and the isobutane is easier to crack. XRD measurements indicated the existence of new phase such as CeO2 and REF2 or REOF as a result of the exchange between F- and O2- during the preparation. The in situ Raman spectra implied that O2- was the active species.

Key words: propane, isobutane, catalytic dehydrogenation, rare earth oxyfluoride

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