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Vol. 27 No. 8 (2015): Vol 27 Issue 8

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Effects of Precipitants on Fischer-Tropsch Synthesis Over Co-Ru-Al2O3 Catalysts

https://doi.org/10.14233/ajchem.2015.18547
Yan Liu
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi Province, P.R. China
Litao Jia
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi Province, P.R. China
Yachun Liu
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi Province, P.R. China; National and Local United Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha 410081, P.R. China
Bo Hou
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi Province, P.R. China
Debao Li
Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi Province, P.R. China

Corresponding Author(s) : Debao Li

dbli@sxicc.ac.cn

Asian Journal of Chemistry, Vol. 27 No. 8 (2015): Vol 27 Issue 8

Abstract

In this work, the effects of precipitants on the physicochemical properties of the precursors, alumina, catalysts and the corresponding catalytic performance for Fischer-Tropsch synthesis were investigated systematically. Furthermore, the relations between pores size distribution of alumina, cobalt particle sizes and catalytic performance for Fischer-Tropsch synthesis were studied thoroughly. It was found that Boehmite (g-AlOOH) could be prepared by using ammonia or ammonium bicarbonate as precipitants, respectively, while the ammonium aluminium carbonate hydroxide (AACH) could be prepared from precipitating ammonium carbonate. Different alumina were obtained by roasting the prepared g-AlOOH and AACH, respectively. The pores size distribution of alumina were tuned by different precipitants and thus the cobalt particle sizes and the reduction behaviours of catalysts supported on the corresponding alumina could be regulated simultaneously.

Keywords

Cobalt Alumina Pore size Particle Fischer-Tropsch synthesis
Liu, Y., Jia, L., Liu, Y., Hou, B., & Li, D. (2015). Effects of Precipitants on Fischer-Tropsch Synthesis Over Co-Ru-Al2O3 Catalysts. Asian Journal of Chemistry, 27(8), 2996–3002. https://doi.org/10.14233/ajchem.2015.18547
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