In-Depth Investigation of Biomass Pyrolysis Based on Three Major Components: Hemicellulose, Cellulose and Lignin

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• 作者：Haiping Yang ; Rong Yan ; Hanping Chen ; Chuguang Zheng ; Dong Ho Lee ; and David Tee Liang
• 刊名：Energy & Fuels
• 出版年：2006
• 出版时间：January 2006
• 年：2006
• 卷：20
• 期：1
• 页码：388 - 393
• 全文大小：109K
• 年卷期：v.20,no.1(January 2006)
• ISSN：1520-5029

文摘

To better understand biomass pyrolysis, the different roles of the three components (hemicellulose, cellulose,and lignin) in pyrolysis are investigated in depth using a thermogravimetric analyzer (TGA). The pyrolysischaracteristics of the three components are first analyzed, and the process of biomass pyrolysis is divided intofour ranges according to the temperatures specified by individual components. Second, synthesized biomasssamples containing two or three of the biomass components are developed on the basis of a simplex-latticeapproach. The pyrolysis of the synthesized samples indicates negligible interaction among the three componentsand a linear relationship occurring between the weight loss and proportion of hemicellulose (or cellulose) andresidues at the specified temperature ranges. Finally, two sets of multiple linear-regression equations areestablished for predicting the component proportions in a biomass and the weight loss of a biomass duringpyrolysis in TGA, respectively. The results of the calculations for the synthesized samples are consistent withthe experimental measurements. Furthermore, to validate the computation approach, TGA experimental analysisof the three components of palm oil wastes, a local representative biomass sample, is conducted.