Effects of Ce Addition on Fe–Cu Catalyst for Fischer–Tropsch Synthesis
Ce-promoted Fe–Cu catalysts were prepared by co-precipitation method. The catalysts were characterized by N2 physisorption, XRD, CO-TPD, H2-TPD, XPS and MES. The results show that the addition of cerium leads to a higher specific area of catalysts but against the adsorption of H2. Moreover, the CO adsorption and carbonization of the catalyst is enhanced with a proper addition of cerium, which is conducive to the formation of iron carbides. The reaction performance experiments indicate that the catalyst with 2 mol% Ce content is with the highest FTS activity of 97.2% CO conversion and light olefins selectivity of 17.2%.
KeywordsFischer–Tropsch synthesis Cerium promoter Fe–Cu catalyst Light olefins
We gratefully acknowledge the financial support of the National High Technology Research and Development Plan of China (863 plan, 2011AA05A204), the Fundamental Research Funds for the Central Universities (No. 222201917013) and the National Natural Science Foundation of China (Grant No: 21706068).
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Conflict of interest
There are no conflicts to declare.
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