催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (10): 954-956.

• 研究快讯 • 上一篇    下一篇

无气相氧条件下La0.8Sr0.2Fe0.9Co0.1O3钙钛矿氧化物的氧物种直接氧化甲烷

代小平,余长春,吴琼   

  1. 中国石油大学(北京)CNPC催化重点实验室, 北京 102249
  • 收稿日期:2008-10-25 出版日期:2008-10-25 发布日期:2008-10-25

Direct Methane Oxidation in the Absence of Gaseous Oxygen Using La0.8Sr0.2Fe0.9Co0.1O3 Perovskite Oxide as the Oxygen Carrier

DAI Xiaoping, YU Changchun*, WU Qiong   

  1. The Key Laboratory of Catalysis, China National Petroleum Corporation, China University of Petroleum, Beijing 102249, China
  • Received:2008-10-25 Online:2008-10-25 Published:2008-10-25

PDF

929

被引次数

13

摘要： 以La0.8Sr0.2Fe0.9Co0.1O3钙钛矿氧化物作氧载体,采用连续流动反应和连续顺序Redox反应考察了氧物种氧化甲烷的反应性能. 结果表明,连续流动反应中La0.8Sr0.2Fe0.9Co0.1O3氧化物的氧物种能选择氧化甲烷生成合成气. 在适宜的再氧化条件下,通过连续顺序Redox反应实现了La0.8Sr0.2Fe0.9Co0.1O3氧化物的氧物种氧化甲烷连续生成合成气,消耗的氧物种可通过与气相氧反应而得到补充. 但随着Redox反应的进行,氧化物的持续供氧性能下降,钙钛矿结构被破坏.

关键词: La0.8Sr0.2Fe0.9Co0.1O3, 钙钛矿, 氧载体, 甲烷, 合成气, 氧化还原反应

Abstract: Direct partial oxidation of methane to synthesis gas using La0.8Sr 0.2-Fe0.9Co0.1O3 oxide as the oxygen carrier was investigate d in a fixed-bed reactor. Methane can be selectively converted to synthesis gas , and the oxygen species can be replenished by gaseous oxygen in redox reaction. The production of synthesis gas by sequential redox cycles over the La0. 8Sr0.2Fe0.9Co0.1O3 perovskite oxide was possible.

Key words: La0.8Sr0.2Fe0.9Co0.1O3, perovskite, oxygen carrier, methane, synthesis gas, redox reaction