Journal
RENEWABLE ENERGY
Volume 39, Issue 1, Pages 126-131Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2011.07.030
Keywords
Biomass; Hydrogen; Decomposition; Reformation; Deactivation
Funding
- Science and Technology Planning Project of Guangdong Province [2009B050600008, 2010A030200013]
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It is generally acknowledged that the continuous production of rich hydrogen is made by using a sequential biomass pyrolysis reactor which combines the pyrolysis of rice husks with the secondary decomposition of gaseous intermediate. Fe/gamma-Al2O3 catalyst was prepared by incipient wetness impregnation. The result shows that Fe/gamma-Al2O3 could fully convert biomass pyrolysis volatile into gaseous products, such as H-2, CH4, CO etc. And the reaction activities of the catalysts are greatly influenced by the calcination temperature of catalysts, the secondary catalytic pyrolysis temperature and Fe/Al mass ratio. The catalyst is characterized by temperature programmed revification (TPR), X-ray diffraction (XRD), scan electron microscope (SEM) and thermogravimetry(TG). The result indicates that the activity centre of Fe/gamma-Al2O3 is Fe2+ and Fe-0. In brief, the main processes are that large molecule organics in bio-oil decompose into gaseous products, meanwhile the gases are catalytic reformation. (C) 2011 Elsevier Ltd. All rights reserved.
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