能源化学(英文) ›› 2010, Vol. 19 ›› Issue (6): 0-0.

• Articles •    

Low-temperature utilization of CO2 and CH4 by combining partial oxidation with reforming of methane over Ru-based catalyst

纪红兵1,Feng2,He2   

  1. 1. 中山大学化学与化工学院
    2.
  • 收稿日期:2010-05-07 修回日期:2010-06-21 出版日期:2010-11-30 发布日期:2010-11-25
  • 通讯作者: 纪红兵
  • 基金资助:
    the National Natural Science Foundation of China (20976203); the Program for New Century Excellent Talents in University (NCET-06-740)

Low-temperature utilization of CO2 and CH4 by combining partial oxidation with reforming of methane over Ru-based catalyst

  • Received:2010-05-07 Revised:2010-06-21 Online:2010-11-30 Published:2010-11-25
  • Contact: Hongbing Ji

摘要:

关键词: combined reaction , syngas , ruthenium , combined reaction, syngas, ruthenium

Abstract: Combination of partial oxidation of methane (POM) with carbon dioxide reforming of methane (CRM) was studied over Ru-based catalysts at 550 刟C. Effects of additives such as rare earth metals, alkali metals and alkaline earth metals were investigated and these catalysts were characterized by BET, SEM-EDS, XRD, TPR, XPS and in situ DRIFT spectroscopy. POM, CRM and combined reaction were performed over 8wt.%Ru/冏-Al2O3 respectively and the results show that both POM and CRM contribute to the combined reaction, among which POM plays a more important role. Moreover, the addition of Ce to Ru-based catalyst results in improvement in the activity and CO selectivity under reaction conditions. The mechanism has been studied on the Ce promoted catalyst through in situ DRIFT spectroscopy together with the temperature distribution of catalyst bed. The complicate coupling reaction mechanism is that of combination between POM and dry reforming. The present paper provides a new catalytic system to activate CH4 and CO2 at rather low temerature.