Catalyst deactivation and regeneration in low temperature ethanol steam reforming with Rh/CeO2-ZrO2 catalysts

Hyun Seog Roh, Alexandru Platon, Yong Wang, David L. King

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Rh/CeO2-ZrO2 catalysts with various CeO 2/ZrO2 ratios have been applied to H2 production from ethanol steam reforming at low temperatures. The catalysts all deactivated with time on stream (TOS) at 350°C. The addition of 0.5% K has a beneficial effect on catalyst stability, while 5% K has a negative effect on catalytic activity. The catalyst could be regenerated considerably even at ambient temperature and could recover its initial activity after regeneration above 200°C with 1% O2. The results are most consistent with catalyst deactivation due to carbonaceous deposition on the catalyst.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalCatalysis Letters
Issue number1-2
Publication statusPublished - 2006 Aug 1


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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