Heterogeneity in cellulose pyrolysis indicated from the pyrolysis in sulfolane

被引:42
作者
Kawamoto, H [1 ]
Saka, S [1 ]
机构
[1] Kyoto Univ, Grad Sch Energy Sci, Sakyo Ku, Kyoto 6068501, Japan
关键词
cellulose; pyrolysis; mechanism; heterogeneous; crystalline; non-crystalline; sulfolane;
D O I
10.1016/j.jaap.2005.12.011
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In sulfolane (tetramethylene sulfone), which is a good solvent for the primary product, levoglucosan, cellulose is pyrolyzed completely into soluble products without forming any char. Residues during pyrolysis in sulfolane at 200, 240 and 330 degrees C were obtained always as colorless noncarbonized substances. From the change in the crystallinity and crystallite size as compared with the ordinary pyrolysis, a heterogeneous mechanism is indicated for cellulose pyrolysis, starting from a molecule which is less stabilized due to lack of some intermolecular interactions. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:280 / 284
页数:5
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