2007 Annual Meeting
(509v) Enhancement Effect of Promotors Over the Hydrotalcite-Like Catalyst in Autothermal Reforming of Propane
Authors
Lim, Y. S. - Presenter, Chonnam National University
Kong, J. H. - Presenter, Chonnam National University
Jung, K. Y. - Presenter, Chonnam National University
Park, S. Y. - Presenter, Chonnam National University
Park, N. C. - Presenter, Chonnam National University
Shin, J. S. - Presenter, Faculty of Applied Chemical Engineering and the Research Institute for Catalysis, Chonnam National University
Kim, J. H. - Presenter, Faculty of Applied Chemical Engineering and the Research Institute for Catalysis, Chonnam National University
Moon, D. J. - Presenter, Korea Institute of Science and Technology
Kim, Y. C. - Presenter, Chonnam National University
Autothermal reforming (ATR) of propane for hydrogen over hydrotalcite-like catalysts was investigated in a fixed-bed flow reactor. The catalysts were prepared by co-precipitation method and modified by the promoters for the higher stability and hydrogen yield. Reaction tests were conducted by using a feed ratio of H2O/C/O2 = 3/1/0.37 between 300 and 700 °C. Catalysts were characterized by XRD, TEM, FESEM, TPR and N2 adsorption. Catalytic activity was observed to be enhanced by the addition of the alkali earth metals and ceria. It was further increased when the catalysts was modified by noble metals. Among the alkaline earth metals, larger atomic-numbered metals showed higher activities. The modified catalysts showed higher dispersion, smaller average particle size of nickel and lower carbon deposition after reaction.