Highly stable Fe/CeO_2 catalyst for the reverse water gas shift reaction in the presence of H_2S

  • Watanabe, Ryo
    Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University
  • Karasawa, Fumiya
    Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University
  • Yokoyama, Chikamasa
    Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University
  • Oshima, Kazumasa
    Department of Chemical Engineering, Faculty of Engineering, Kyushu University
  • Kishida, Masahiro
    Department of Chemical Engineering, Faculty of Engineering, Kyushu University
  • Hori, Masahiro
    Research Institute of Electronics, Shizuoka University
  • Ono, Yukinori
    Research Institute of Electronics, Shizuoka University
  • Satokawa, Shigeo
    Department of Materials and Life Science, Faculty of Science and Technology, Seikei University
  • Verma, Priyanka
    Department of Materials and Life Science, Faculty of Science and Technology, Seikei University
  • Fukuhara, Choji
    Department of Applied Chemistry and Biochemical Engineering, Graduate School of Engineering, Shizuoka University

Bibliographic Information

Other Title
  • Highly stable Fe/CeO<sub>2</sub> catalyst for the reverse water gas shift reaction in the presence of H<sub>2</sub>S

Description

This study focused on evaluating the catalytic properties for the reverse water gas shift reaction (RWGS: CO_2 + H_2 → CO + H_2O ΔH^0 = 42.1 kJ mol^<−1>) in the presence of hydrogen sulfide (H_2S) over a Fe/CeO_2 catalyst, commercial Cu–Zn catalyst for the WGS reaction (MDC-7), and Co–Mo catalyst for hydrocarbon desulfurization. The Fe/CeO_2 catalyst exhibited a relatively high catalytic activity to RWGS, compared to the commercial MDC-7 and Co–Mo catalysts. In addition, the Fe/CeO_2 catalyst showed stable performance in the RWGS environment that contained high concentrations of H_2S. The role of co-feeding H_2S was investigated over the Fe/CeO_2 catalyst by the temperature programmed reaction (TPR) of CO_2 and H_2 in the presence of H_2S. The result of TPR indicated that the co-feeding H_2S might enhance RWGS performance due to H_2S acting as the hydrogen source to reduce CO_2.

Journal

  • RSC Advances

    RSC Advances 13 (17), 11525-11529, 2023-04-12

    Royal Society of Chemistry (RSC)

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