林产化学与工业2012,Vol.32Issue(5):83-87,5.
杨木刨花板的热解动力学分析
Kinetic Mechanism of Pyrolysis Reaction Using Poplar Particleboards as Raw Material
摘要
Abstract
The pyrolysis reactions of poplar particleboards were carried out using the thermogravimetric apparatus,The TG and DTG curves were used to analysis the pyrolysis mechanism by Coats-Redfern method. The results show that the non-isothermal pyrolysis of poplar particleboards can be generally divided into three stages:dehydration,fast pyrolysis and slow pyrolysis. As the heating rate increased,the maximum rate of weight loss were also increased. It was found that there was a lateral shift in the TGA curves to higher temperatures. The fast pyrolysis stage can be described by the model of D3. The activation energy is 107.24kJ/mol,and the pre-exponpential factors of 5,10 and 20 ℃/min are 2.09 × 105 s,6.57 × 105,3.22 × 105 s-1 ,respectively.关键词
杨木刨花板/热解/动力学/反应机理Key words
poplar particleboards/pyrolysis/kinetics/pyrolytic mechanism分类
化学化工引用本文复制引用
黄志义,冯永顺,于志明,母军..杨木刨花板的热解动力学分析[J].林产化学与工业,2012,32(5):83-87,5.基金项目
北京市教委专利转化项目(无编号) (无编号)