西南林业大学学报Issue(3)：90-96,7.DOI:10.3969/j.issn.2095-1914.2015.03.016
基于热重红外联用和分布活化能模型的樟子松热解机理研究
Determination of Pyrolysis Characteristics and Kinetics of Pinus sylvestris var.mongolica Using TGA-FTIR and Distributed Activation Energy Model
摘要
Abstract
In order to get a fundamental understanding of pyrolysis behavior and kinetics of Pinus sylvestris var. mongolica,the TGA -FTIR instrument and distributed activation energy model (DAEM)via different heating rates (5,10,20,30 ℃/min)was taken for the study.The TG and DTG curves demonstrated that the pyrolysis process of PS consisted of the drying stage,degradation stage and carbonization stage.According to the FTIR analysis,the prominent volatile components generated by the pyrolysis of PS were CO2 ,aldehydes,ketones,organic acids,and alkanes,phenols etc.The fluctuation of activation energy can be interpreted as a result complex reaction occurred in pyrolysis process.For 0.1 <conversion rate(α)<0.3,this could be mainly attributed to the hemicellulose deg-radation.For 0.3 <α<0.7,cellulose initially pyrolyzed to active cellulose,then degradation of active cellulose occurred.For 0.7 <α<0.8,highest activation energy was observed due to the degradation of lignin.关键词
樟子松/热解/热重红外联用/分布活化能模型/动力学Key words
Pinus sylvestris var.mongolica/pyrolysis/TGA-FTIR/distributed activation energy model/kinetics分类
农业科技引用本文复制引用
马中青,徐嘉炎,叶结旺,张齐生..基于热重红外联用和分布活化能模型的樟子松热解机理研究[J].西南林业大学学报,2015,(3):90-96,7.基金项目
浙江农林大学人才引进启动基金项目（2014FR056）资助；浙江农林大学生物质资源化利用研究中心预研项目（2013SWZ03）资助；“十二五”国家科技支撑计划项目（2012BAD30B01）资助。 （）
