Catalytic activities and performance enhancement of Ni catalysts for CO2 reforming 


Vol. 9,  No. 3, pp. 125-132, Sep.  2003


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  Abstract

Activity improvenent of Ni metal catalysts for carbon dioxide reforming was studied using HY-zeolite as the main supporter. As the reaction temperature increased, CH4 and CO2 conversions increased, and conversions higher than 80% was obtained above 700 °C. As the Ni loading increased, the catalyst activity increased, and the highest activity was shown for the Ni loading of 13wt%. The HY-zeolite support showed the highest intial conversions of CH4 and CO2, but it showed faster deactivation than a γ-Al2O3 support. Nevertheless, it maintained the CH4 conversion higher than 80% after 24 hr reaction. The effect of promoters such as Mg, Mn, K, and Ca was also studied. It was observed that the Mg promotor exhibited the highest catalyst activity and less deactivation compared with Mn, K and Ca. After 24hr reaction, The optimum Mg content was found to be 5wt%.

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  Cite this article

[IEEE Style]

J. SY, K. DS, K. KI, "Catalytic activities and performance enhancement of Ni catalysts for CO2 reforming," Clean Technology, vol. 9, no. 3, pp. 125-132, 2003. DOI: .

[ACM Style]

Jun SY, Kim DS, and Kim KI. 2003. Catalytic activities and performance enhancement of Ni catalysts for CO2 reforming. Clean Technology, 9, 3, (2003), 125-132. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

한국연구재단 등재학술지