物理化学学报 >> 2002, Vol. 18 >> Issue (01): 1-4.doi: 10.3866/PKU.WHXB20020101

研究论文    下一篇

钼掺杂LaVO4上丙烷氧化脱氢

照日格图;李文钊;于春英;徐恒泳;Roger Kieffer   

  1. 中国科学院大连化学物理研究所,大连 116023;LERCSIECPE(UMR 7515 du CNRS),25 rue Becquerel,F67087 Strasbourg cedex 2,France
  • 收稿日期:2001-06-21 修回日期:2001-08-06 发布日期:2002-01-15
  • 通讯作者: 李文钊 E-mail:wzli@dicp.ac.cn

Propane Oxidative Dehydrogenation on Molybdenum Doped LaVO4 Catalyst

Zhao-Ri Ge-Tu;Li Wen-Zhao;Yu Chun-Ying;Xu Heng-Yong;Kieffer,Roger   

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, P.O.Box 110, Dalian 116023;LERCSIECPM(UMR 7515 du CNRS),25 rue Becquerel,F67087 Strasbourg cedex 2,France
  • Received:2001-06-21 Revised:2001-08-06 Published:2002-01-15
  • Contact: Li Wen-Zhao E-mail:wzli@dicp.ac.cn

摘要: 研究了钼掺杂LaVO4催化剂的丙烷氧化脱氢催化性能.加入钼对丙烷氧化脱氢反应有很好的助催化作用.当丙烷转化率恒定在10%和20%时,丙烯选择性在LaMo0.1V0.9O4.05上分别达到了56%和43%,而在LaVO4上仅为36%和22%,这归结为钼掺杂催化剂上有利于丙烯生成的可活动氧物种的增加和催化剂氧化还原性的改变.

关键词: 丙烷, 氧化脱氢, 稀土催化剂

Abstract: The catalytic behavior of molybdenum doped lanthanum vanadate for propane oxidative dehydrogenation was investigated.It was found that the addition of molybdenum showed a positive promoting effect to propane oxidative dehydrogenation.56% and 43% of C3H6 selectivities were obtained over LaMo0.1V0.9O4.05 at 10% and 20% C3H8 conversion respectively ,while the selectivities on LaVO4 were only 36% and 22% at the isoconversion,which can be attributed to an increase of the mobile oxygen species beneficial to propene formation and to the change of the redox properties of the molybdenum doped catalysts.

Key words: Propane, Oxidative dehydrogenation, Rare earth catalyst