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Citation: Xu Zhanlin, Bi Yingli, Zhen Kaiji. CO₂ Reforming of Methane to Syngas Catalyzed by β-Alumina Oxides[J]. Chinese Journal of Applied Chemistry, ;1999, 16(6): 13-16. shu

CO₂ Reforming of Methane to Syngas Catalyzed by β-Alumina Oxides

1.
Department of Chemistry, Jilin University, Changchun 130023

Received Date: 13 April 1999
Available Online: 1 September 1999

A series of transition metal substituted β-alumina oxides, BaMAl₁₁O_19-δ(M=Fe, Co,Ni, Mn, Cu) were prepared.The structures and characteristics of the catalysts were investigated by XRD, XPS and TPR techniques.The catalysts were identified to have almost the same β-alumina crystal structure, but exhibited different reducibility and catalytic activities for CO₂ reforming of methane to syngas in close relation to the crystal structure and characteristics of the transition metal in β-alumina oxides lattices.Among the β-alumina oxides, BaMAl₁₁O_19-δ showed significant catalytic activity and stability without sintering and deactivation.When reforming was carried out at 780℃ for 2 h the conversion of CH₄ and CO₂ reached 96.6% and 94.8%,respectively.The catalytic activities of other catalysts were much lower than that of BaNiAl₁₁O_19-δ.The activity order of the catalysts in view of transition metals was Ni >> Co > Fe > Mn > Cu.
- β-alumina oxide,
- transition metal,
- methane,
- CO₂-reforming,
- syngas
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CO₂ Reforming of Methane to Syngas Catalyzed by β-Alumina Oxides