Journal
CATALYSIS LETTERS
Volume 110, Issue 1-2, Pages 1-6Publisher
SPRINGER
DOI: 10.1007/s10562-006-0082-2
Keywords
ethanol steam reforming; deactivation; regeneration; low temperature; Rh/CeO2-ZrO2
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Rh/CeO2-ZrO2 catalysts with various CeO2/ZrO2 ratios have been applied to H-2 production from ethanol steam reforming at low temperatures. The catalysts all deactivated with time on stream (TOS) at 350 degrees 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 degrees C with 1% O-2. The results are most consistent with catalyst deactivation due to carbonaceous deposition on the catalyst.
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