期刊
RENEWABLE ENERGY
卷 41, 期 -, 页码 23-28出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2011.09.004
关键词
Hydrogen; Catalyst characterization; Continuous pyrolysis; The secondary catalyst cracking; Hercynite
资金
- Science and Technology Planning Project of Guangdong Province [2009B050600008, 2010A030200013]
Fe(2)O(0)3/gamma-Al2O3 catalyst is prepared by incipient wetness impregnation. The catalyst is characterized by temperature programmed reduction (TPR), X-ray diffraction (XRD), scanning electron microscope (SEM) and thermogravimetric analysis (TGA). The catalytic activity of Fe(2)O(0)3/gamma-Al2O3 catalysts is evaluated via the experimental study on the catalytic cracking of rice husk to produce hydrogen in a self made biomass continuous pyrolysis system. The results show that the reaction activities of the catalysts are greatly influenced by the calcinations temperature for catalyst, the secondary catalytic pyrolysis temperature and the mass ratio of Fe to Al. When the calcinations temperature is 550 degrees C, the pyrolysis temperature is 500 degrees C, the secondary catalytic pyrolysis temperature is 700 degrees C, and the Fe to Al mass ratio is 0.07, the experimental results indicate that Fe(2)O(0)3/gamma-Al2O3 catalyst could fully convert the volatile matters from biomass pyrolysis into small molecular gases such as H-2, CH4, CO, CO2, C2H4 and C2H6. Meanwhile, the catalyst has shown fine catalytic activity and stability as well as good resistance to coke deposition. (C) 2011 Published by Elsevier Ltd.
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