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

The effect of the calcination temperature on the catalyst performance of ZrO2-supported cobalt for Fischer-Tropsch synthesis is investigated. 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. In addition, the extent of CO linear absorption and bridge absorption peak increases and then decreases with increasing calcination temperature. The 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. Meanwhile, the growth and enhanced reducibility of the cobalt species particles contribute to the generation of heavy hydrocarbons and explain the differences in product selectivity. Therefore, 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.

  Info
Periodical
Advanced Materials Research (Volumes 347-353)
Chapter
Chaper 10: Energy Security and Clean Use
Edited by
Weiguo Pan, Jianxing Ren and Yongguang Li
Pages
3788-3793
DOI
10.4028/www.scientific.net/AMR.347-353.3788
Citation
Y. C. Liu, H. T. Wu, L. T. Jia, Z. H. Fu, J. G. Chen, D. B. Li, D. L. Yin, Y. H. Sun, "Effect of the Calcination Temperature on the Catalyst Performance of ZrO2-Supported Cobalt for Fischer-Tropsch Synthesis", Advanced Materials Research, Vols. 347-353, pp. 3788-3793, 2012
Online since
October 2011
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Price
$32.00
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