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

• Articles •    

Application of in-plasma catalysis and post-plasma catalysis for methane partial oxidation to methanol over a Fe2O3-CuO/γ-Al2O3 catalyst

陈琳1,雷乐成2,Liang Huang1,Xingwang Zhang1   

  1. 1.
    2. Department of Chemical and biological Engineering Institute of Industrial Ecology and Environment
  • 收稿日期:2010-04-20 修回日期:2010-08-17 出版日期:2010-11-30 发布日期:2010-11-25
  • 通讯作者: 雷乐成
  • 基金资助:
    This work was supported by NSFC (No. 20836008 and U0633003);Zhejiang provincial natural science foundation of China (No. Y5080192);Project of science and technology department of Zhejiang province of

Application of in-plasma catalysis and post-plasma catalysis for methane partial oxidation to methanol over a Fe2O3-CuO/γ-Al2O3 catalyst

  • Received:2010-04-20 Revised:2010-08-17 Online:2010-11-30 Published:2010-11-25

摘要:

关键词: plasma catalysis , methane , stability , plasma catalysis, methane, stability

Abstract: A study of methane partial oxidation to methanol (MPOM) using dielectric barrier discharge over a Fe2O3-CuO/γ-Al2O3 catalyst was performed. The multicomponent catalyst was combined with plasma in two different configurations: in-plasma catalysis (IPC) and post-plasma catalysis (PPC). Both catalytic activity and stability of the catalysts were proved to be dependent on the hybrid configuration. A better synergistic performance of plasma and catalysis was achieved in the IPC combination, but the catalyst packed in the discharge zone showed lower stability than that connected to the discharge zone in series. Active species produced from the plasma-catalysis process such as ozone, atomic oxygen, and methyl radicals, which made a major contribution to methanol synthesis, were identified by means of in-situ optical emission spectra, ozone measurement, and FT-IR spectra. It was found that the amount of active species in the IPC system was greater than that in the PPC system. The results of TG, XRD, and BET analysis revealed that carbon deposition on the spent catalysts surface are responsible for the decrease of the catalyst activity in the IPC combination.