期刊
BIORESOURCE TECHNOLOGY
卷 128, 期 -, 页码 664-672出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2012.09.082
关键词
Rice straw; Demineralization; Inorganic constituents; Fast pyrolysis; Biooil fraction
资金
- National Research Foundation (NRF) of Korea
- Ministry of Education, Science and Technology (MEST), Republic of Korea [2010-0009289]
- National Research Foundation of Korea [2010-0009289] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The objectives of this study were to investigate the effects of inorganic constituents on the fast pyrolysis of the biomass and to determine the yields as well as physicochemical properties of pyrolytic products. The pyrolytic products were obtained from raw and demineralized rice straw using a fluidized bed type pyrolyzer at different temperatures. As pyrolysis temperature increased, total biooil yield gradually decreased from 46.6 to 29.6 wt.% for the raw-straw, and from 55.4 to 35.3 wt.% for the demineralized rice straw. For demineralized rice straw, higher pyrolysis temperatures promoted gasification reactions but reduced char formations. However, char yield for the raw-straw was relatively unaffected by temperature due to an increase in carbonization reactions that were catalyzed by some inorganics. Certain inorganic constituents in the biomass were distinctively distributed in the biooil, and ICP-ES and GC/MS analysis indicated that some inorganics may be chemically bound to cell wall components. (C) 2012 Elsevier Ltd. All rights reserved.
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