The Effect of Carrier in CO2 Reforming of CH4 to Syngas over Ni-based catalysts 


Vol. 5,  No. 2, pp. 63-68, Dec.  1999


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  Abstract

The activities of Ni(20wt%)/ La2O3, Ni(20wt%)/ γ - Al2O3, and Ni(20wt%)/SiO2 catalyst for CO2 reforming of CH4 were investigated in a fixed bed flow reactor under atmospheric condition. Catalyst characterization using XRD, TEM, SEM, BET analysis were also conducted. The catalytic activity of Ni(20wt%)/ La2O3 catalyst has relatively superior to that of Ni(20wt%)/ γ - Al2O3 and Ni(20wt%)/ SiO2 catalyst. The good activity of Ni(20wt%)/ La2O3 catalyst seems to depend on reduced Ni(O) phases of NiO(→ Ni + O), LaNiO3(→ Ni + La2O3), Ni crystalline phases, and decoration of Ni phases by lanthanum species is also an important factor. Ni(20wt%)/ γ - Al2O3 and Ni(20wt%)/ SiO2 catalyst due to surface acidity resulted in the deposition of wisker type and encapsulate carbon on the surface of catalyst, but Ni(20wt%)/ La2O3 catalyst did not show carbon on the surface of catalyst up to 8.5hr reaction.

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  Cite this article

[IEEE Style]

S. HJ, K. UI, Y. EY, "The Effect of Carrier in CO2 Reforming of CH4 to Syngas over Ni-based catalysts," Clean Technology, vol. 5, no. 2, pp. 63-68, 1999. DOI: .

[ACM Style]

Seo HJ, Kang UI, and Yu EY. 1999. The Effect of Carrier in CO2 Reforming of CH4 to Syngas over Ni-based catalysts. Clean Technology, 5, 2, (1999), 63-68. DOI: .

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