Journal
FUEL
Volume 184, Issue -, Pages 162-168Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2016.06.125
Keywords
Fischer-Tropsch synthesis; Co/ZrO2 catalyst; Ceria; Promoter
Categories
Funding
- National Natural Science Foundation of China [21061008]
- Inner Mongolia Natural Science Foundation of China [2016MS0217]
- Inner Mongolia Education Department Science Foundation of China [NJZY16018]
- Program for Introducing Talents of Discipline in Inner Mongolia University of China [SPH-IMU135148]
- Program for Inner Mongolia Prairie Excellence Innovation and Entrepreneurial Team of China [201201]
- Program for Development of Innovative Teams in Inner Mongolia University of China [NMGIRT1105]
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In this paper, the effect on the physico-chemical properties and catalytic performance of CeO2-modified Co/ZrO2 catalysts were investigated in the Fischer-Tropsch synthesis (FTS) reaction. The CeO2-promoted catalysts with CeO2/ZrO2 ratios of 5 wt% and 10 wt% (denoted as 5 and 10) were prepared by the sequential incipient wetness method. The catalysts and/or supports were characterized by N-2 adsorption-desorption, XRD, TEM, TPR, XPS, and hydrogen chemisorption techniques. The experimental results indicated that an appropriate amount of CeO2 promoter added to Co/ZrO2 catalyst could increase the active sites of the catalysts due to the increase of reducibility and dispersion, thus further lead to a high FTS activity. In the meantime, CeO2 promoter could effectively inhibit water re-oxidation as well as further the aggregation of cobalt metal particles during the reaction. Therefore, CeO2-modified Co/ZrO2 catalysts displayed a better performance against deactivation in the FTS reaction. (C) 2016 Elsevier Ltd. All rights reserved.
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