The effect of alkaline earth metal oxide on nickel catalyst for carbon dioxide reforming of methane |
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Authors: | K S Jung H -D Moon H -I Lee |
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Institution: | (1) Division of Chemical Engineering, College of Engineering, Seoul National University, San 56-1, Shinlim-dong, Kwanak-ku, 151-742 Seoul, Korea |
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Abstract: | A study on the effect of alkaline earth metal oxide on the activity and stability of nickel catalyst for carbon dioxide reforming
of methane was performed. When CaO, SrO, and BaO were used as supports, there was no difference in catalytic activity between
the catalysts made by coprecipitation and impregnation. However, when MgO was used as a support, the catalyst prepared by
coprecipitation showed superior activity than that made by impregnation. The higher activity of the catalyst made by coprecipitation
was due to the formation of solid solution consisting of nickel and magnesium. The formation of the solid solution enhanced
the dispersion of nickel and the resistance to coke formation. |
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Keywords: | |
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