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Comparison of pyrolytic products produced from inorganic-rich and demineralized rice straw (Oryza sativa L.) by fluidized bed pyrolyzer for future biorefinery approach
被引:72
作者:
Eom, In-Yong
[1
,2
,4
]
Kim, Jae-Young
[1
,2
]
Lee, Soo-Min
[3
]
Cho, Tae-Su
[3
]
Yeo, Hwanmyeong
[1
,2
]
Choi, Joon-Weon
[1
,2
]
机构:
[1] Seoul Natl Univ, Dept Forest Sci, Seoul 151921, South Korea
[2] Seoul Natl Univ, Res Inst Agr & Life Sci, Seoul 151921, South Korea
[3] Korea Forest Res Inst, Dept Forest Resources Utilizat, Seoul 130712, South Korea
[4] Korea Res Inst Chem Technol, Res Ctr Biobased Chem, Taejon 305600, South Korea
基金:
新加坡国家研究基金会;
关键词:
Rice straw;
Demineralization;
Inorganic constituents;
Fast pyrolysis;
Biooil fraction;
BIOETHANOL PRODUCTION;
BIOMASS;
LIGNIN;
WOOD;
QUALITY;
BAGASSE;
ALKALI;
OILS;
D O I:
10.1016/j.biortech.2012.09.082
中图分类号:
S2 [农业工程];
学科分类号:
0828 ;
摘要:
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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页码:664 / 672
页数:9
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