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Pyrolysis Characteristics of Bamboo Enzymatic/Mild Acidolysis Lignin


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Pyrolysis Characteristics of Bamboo Enzymatic/Mild Acidolysis Lignin
LOU Rui1WU Shu-bin1TAN Yang1ZHAO Zeng-li2
1.State Key Laboratory of Pulp and Paper Engineering,South China University of Technology,Guangzhou 510640,China;2.Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China
enzomolysis acidolysis lignin bamboo pyrolysis characteristics kinetic activation energy
To effectively use bamboo materials,the pyrolysis behaviors for total components of gramineous bamboo and single component lignin are studied,and the trend of lignin pyrolysis that affects total components of bamboo pyrolyzing is proposed.Pyrolysis characteristics of enzymatic/mild acidolysis lignin(EMAL) are studied by thermogravimetric analysis,and compared with those of the total components of bamboo extracted with acetone.The effects of heating rate and temperature on the pyrolysis behaviors of EMAL are investigated.The Coats-Redfern method is used to analyze the EMAL pyrolysis to establish the kinetic model and to obtain the kinetic parameters of EMAL pyrolysis.The results show that the reaction of EMAL pyrolysis occurs between 150℃ and 600℃,and the kinetic model of EMAL pyrolysis can be simulated with a first-order reaction,and the obtained activation energy increases with the increase of heating rates.


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Last Update: 2012-11-19