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The effect of space time on Co/CeO2 catalyst deactivation during oxidative steam reforming of ethanol

Paper ID Volume ID Publish Year Pages File Format Full-Text
51065 46828 2010 5 PDF Available
Title
The effect of space time on Co/CeO2 catalyst deactivation during oxidative steam reforming of ethanol
Abstract

This paper studies the effect of space time on the deactivation of a Co/CeO2 catalyst during oxidative steam reforming of ethanol. Increasing space time increased the ethanol conversion and hydrogen selectivity whereas acetaldehyde formation decreased. Both thermogravimetric and scanning electron microscopy analyses of post-reaction samples indicate that higher space times favor the deposition of filamentous carbon. However, the amount of carbon formed passes through a maximum and then decreases at high space time. Higher space times appear to allow the support, based on its oxygen mobility property, enough contact time to supply O needed to clean the carbon.

Keywords
Hydrogen production; Ethanol oxidative steam reforming; Co/CeO2 catalyst; Deactivation mechanism; Carbon formation
First Page Preview
The effect of space time on Co/CeO2 catalyst deactivation during oxidative steam reforming of ethanol
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 8, 31 March 2010, Pages 736–740
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis