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

Overview

Title: 

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

Abstract: 

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.

Authors: 

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

DOI: 

Journal: 

Catalysis Letters

Year: 

2006

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