期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 38, 期 11, 页码 4368-4379出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2013.01.169
关键词
Hydrogen production; Supercritical water; Glycerol reforming; Cobalt-based catalysts
资金
- Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission [EN278A]
- Royal Golden Jubilee PhD Program
- TRF Senior Research Scholar from the Thailand Research Fund
- Natural Sciences and Engineering Research Council of Canada (NSERC)
Glycerol reforming under catalytic supercritical water at temperatures in the range of 723-848 K using Co catalyst deposited on various supports including ZrO2, yttria-stabilized zirconia (YSZ), La2O3, gamma-Al2O3, and alpha-Al2O3 was investigated. An increase in operating temperature promoted the continued increase in glycerol conversion; however, carbon formation causing system operation failure was observed for gamma-Al2O3 and alpha-Al2O3 at high operating temperatures (i.e. 748-798 K). Co supported on YSZ provided the most efficient performance for hydrogen production. 10 wt.% Co loading on YSZ support was an optimum amount to enhance the reaction. The increase in glycerol conversion and reduction of the amount of liquid products were observed for lower weight hourly space velocity (WHSV), higher operating temperature or higher cobalt loading. On Co/YSZ catalyst, glycerol conversion of 0.94 and hydrogen yield of 3.72 was obtained with WHSV of 6.45 h(-1)at 773 K. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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