Rh-Ni and Rh-Co catalysts for autothermal reforming of gasoline

Yeon Gyu Jung, Dae Hyung Lee, Yongmin Kim, Jin Hee Lee, SukWoo Nam, Dae Ki Choi, Chang Won Yoon

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1 Citation (Scopus)

Abstract

Rh doped Ni and Co catalysts, Rh-M/CeO2(20 wt %)-Al 2O3 (0.2 wt % of Rh; M = Ni or Co, 20 wt %) were synthesized to produce hydrogen via autothermal reforming (ATR) of commercial gasoline at 700 oC under the conditions of a S/C ratio of 2.0, an O/C ratio of 0.84, and a gas hourly space velocity (GHSV) of 20,000 h-1. The Rh-Ni/CeO 2(20 wt %)-Al2O3 catalyst (1) exhibited excellent activities, with H2 and (H2+CO) yields of 2.04 and 2.58 mol/mol C, respectively. In addition, this catalyst proved to be highly stable over 100 h without catalyst deactivation, as evidenced by energy dispersive spectroscopy (EDX) and elemental analyses. Compared to 1, Rh-Co/CeO2(20 wt %)-Al2O3 catalyst (2) exhibited relatively low stability, and its activity decreased after 57 h. In line with this observation, elemental analyses confirmed that nearly no carbon species were formed at 1 while carbon deposits (10 wt %) were found at 2 following the reaction, which suggests that carbon coking is the main process for catalyst deactivation.

Original languageEnglish
Pages (from-to)231-235
Number of pages5
JournalBulletin of the Korean Chemical Society
Volume35
Issue number1
DOIs
Publication statusPublished - 2014 Jan 20
Externally publishedYes

Keywords

  • Autothermal reforming
  • Bimetallic catalyst
  • Carbon coking
  • CeO-Al O Gasoline

ASJC Scopus subject areas

  • Chemistry(all)

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  • Cite this

    Jung, Y. G., Lee, D. H., Kim, Y., Lee, J. H., Nam, S., Choi, D. K., & Yoon, C. W. (2014). Rh-Ni and Rh-Co catalysts for autothermal reforming of gasoline. Bulletin of the Korean Chemical Society, 35(1), 231-235. https://doi.org/10.5012/bkcs.2014.35.1.231