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Received July 17, 2008
Accepted September 27, 2008
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Pyrolysis of wood species based on the compositional analysis
State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
srwang@cmee.zju.edu.cn
Korean Journal of Chemical Engineering, March 2009, 26(2), 548-553(6), 10.1007/s11814-009-0093-y
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Abstract
Based on the Van Soest method, the components in Chinese fir and fast-growing poplar were quantified, and the fiber present was separated into three fractions: neutral detergent fiber, acid detergent fiber and strong acid detergent fiber. Microstructure of the fibers was investigated by a Fourier transform infrared spectrometry. Cellulose and hemicellulose both represent the characteristics of polysaccharides, while lignin has dissimilar structure. Pyrolysis of fir, poplar and the detergent fibers was carried out on a thermogravimetric analyzer coupled with FTIR spectrometry. After the removal of extractives and soluble minerals, pyrolysis of NDF shows the characteristics of the three main components. Hydrocarbons, aldehydes, ketones, acids, alcohols and others are generated due to the primary pyrolysis of hemicellulose and cellulose in single stages. Phenols and alcohols are the dominant volatiles released from pyrolysis of lignin in two successive stages, respectively.
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Yang C, Lu X, Lin W, Yang X, Yao J, Chem. Res. Chinese U., 22, 524 (2006)
Meszaros E, Jakab E, Varhegyi G, J. Anal. Appl. Pyrolysis, 79, 61 (2007)
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