期刊
BIOMASS & BIOENERGY
卷 95, 期 -, 页码 55-63出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2016.09.015
关键词
Cellulose; Hemicellulose; Interaction; Pyrolysis; Py-GC-MS
资金
- National Natural Science Foundation of China [51525601, 51561145010, 51476034]
- Scientific Research Foundation of Graduate School of Southeast University [YBJJ1504]
- Fundamental Research Funds for the Central Universities
- scientific innovation research program of college graduate in Jiangsu province [KYLX_0118]
In this work, the cellulose-hemicellulose interaction during pyrolysis was investigated to study the impacts of sample preparation, temperature, mixing ratio on the light products distribution. Cellulose-hemicellulose interactions were studied by Py-GC-MS with different temperatures (500, 600, 700 degrees C), mixing ratios (mass ratio 1:1 and 5:2), and mixing methods (physical and native mixtures). Generally speaking, cellulose-hemicellulose interaction would significantly promote the formation of hemicellulose-derived products and CO2, while inhibit part of cellulose-derived products, especially the formation of levoglucosan. Moreover, the native cellulose-hemicellulose mixture had the most distinct impact on the product distributions. A statistic method has been used to evaluate the strength of cellulose-hemicellulose interaction and compared with cellulose-lignin interaction, finding that mixing method had the strongest influence on cellulose-hemicellulose interaction, followed by temperature, and mixing ratio had the weakest influence. Most importantly, the interaction between cellulose-hemicellulose was weaker than cellulose-lignin. (C) 2016 Elsevier Ltd. All rights reserved.
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