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《Journal of Engineering Thermophysics》 2006-02
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MECHANISM STUDY OF BIOMASS PYROLYSIS BY THERMOGRAVI-METRIC ANALYSIS COUPLED WITH INFRARED SPECTROSCOPY

WANG Shu-Rong LIU Qian ZHENG Yun WEN Li-Hua LUO Zhong-Yang CEN Ke-Fa State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China  
The pyrolysis behavior of white pine was studied at different heating rates by thermogravimetric (TG) analysis coupled with Fourier Transform Infrared Spectroscopy (FTIR). Experimental results showed that the pyrolysis of wood can be considered as the pyrolysis of the combination of three main components, i.e. cellulose, hemicellulose and lignin. The product was mainly consisted of acids, alcohols, aldehydes, ketones, esters, water and small-molecule gases. The online FTIR analysis showed that free water released out firstly during white pine pyrolysis, followed by the depolymerization and dehydration. Glucosidic bond and carbon-carbon bond broke into the formation of a series of hydrocarbons, alcohols, aldehydes, acids, and etc. Subsequently these large-molecule compounds decomposed further into gases, such as carbon monoxide.
【Fund】: 国家自然科学基金资助项目(50476057) 国家重点基础研究专项经费资助项目(No.2001CB409600)
【CateGory Index】: TK6
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