摘要

Aqueous phase reforming of glycerol over Ni-based catalysts for hydrogen production was carried out at 225 degrees C, 23 bar and LHSV = 4 h(-1). The Ni-based catalyst was prepared by an incipient wetness impregnation method. The catalysts before and after the reaction were characterized by N(2) physisorption, CO chemisorption, XRD, TPR, SEM and TEM techniques. It was found that Ni(20 wt%)-Co(3 wt%)/gamma-Al(2)O(3) catalyst showed higher glycerol conversion and hydrogen selectivity than Ni(20 wt%)/gamma-Al(2)O(3) catalyst. There are no major changes in Ni particles after the reaction over Ni-Co/gamma-Al(2)O(3) catalyst. The results suggest that the Ni-Co/gamma-Al(2)O(3) catalyst can be applied to the hydrogen production system using APR of glycerol.

  • 出版日期2011-8

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