Effect of the Calcination Temperature on the Catalyst Performance of ZrO2-Supported Cobalt for Fischer-Tropsch Synthesis

Advanced Materials Research (Volumes 347 - 353), Pages 3788-3793 (2011)

Effect of the Calcination Temperature on the Catalyst Performance of ZrO₂-Supported Cobalt for Fischer-Tropsch Synthesis

Ya Chun Liu, Hai Tao Wu, Li Tao Jia, Zai Hui Fu, Jian Gang Chen, De Bao Li, Du Lin Yin, Yu Han Sun

Abstract

Authors investigate the effect of the calcination temperature on the catalyst performance of ZrO₂-supported cobalt for Fischer-Tropsch synthesis.

Results show that the size of the cobalt species particles of the ZrO₂-supported cobalt catalysts increases and their reducibility is enhanced with increasing calcination temperature.

Results from the Fishcer-Tropsch synthesis show that the CO conversion rate increases and then decreases as the calcination temperature is increased. Catalyst selectivity for C₁ monotonically decreases, whereas that for C₅₊ increases. The changes in the CO conversion rate demonstrate a regularity consistent with the trend of the CO absorption peak extent. Consequently, the appropriate calcination temperature facilitates an increase in the CO conversion rate of the ZrO₂-supported cobalt catalysts and results in a better Fischer-Tropsch synthesis product selectivity.

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