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Regeneration behaviors of Fe/Si‐2 and Fe–Mn/Si‐2 catalysts for C2H6 dehydrogenation with CO2 to C2H4

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Abstract

The catalytic performance of Fe/Si‐2 and Fe–Mn/Si‐2 catalysts for conversion of C2H6 with CO2 to C2H4 was examined in a continuous‐flow and fixed‐bed reactor. The results show that the Fe–Mn/Si‐2 catalyst exhibits much better reaction activity and selectivity to C2H4 than those of the Fe/Si‐2 catalyst. Furthermore, the coking–decoking behaviors of these catalysts were studied through TG. The catalytic performances of the catalysts after regeneration for conversion of C2H6 or dilute C2H6 in FCC off‐gas with CO2 to C2H4 were also examined. The results show that both activity and selectivity of the Fe–Mn/Si‐2 catalyst after regeneration reached the same level as those of the fresh catalyst, whereas it is difficult for the Fe/Si‐2 catalyst to refresh its reaction behavior after regeneration.

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Authors and Affiliations

  1. Chinese Academy of Sciences, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, PO Box 110, Dalian, 116023, PR China

    Longya Xu, Jinxiang Liu, Hong Yang, Yide Xu, Qingxia Wang & Liwu Lin

Authors
  1. Longya Xu
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  2. Jinxiang Liu
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  3. Hong Yang
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  4. Yide Xu
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  5. Qingxia Wang
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  6. Liwu Lin
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Correspondence to Longya Xu.

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Xu, L., Liu, J., Yang, H. et al. Regeneration behaviors of Fe/Si‐2 and Fe–Mn/Si‐2 catalysts for C2H6 dehydrogenation with CO2 to C2H4 . Catalysis Letters 62, 185–189 (1999). https://doi.org/10.1023/A:1019015509871

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  • DOI: https://doi.org/10.1023/A:1019015509871

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