Combustion and pyrolysis of electronic waste:thermogravimetric analysis and kinetic model

摘要：

　　In the present work,thermogravimetric analysis (TG) was employed in order to investigate the thermal degradation of electronic waste under pyrolysis and combustion conditions.Three materials,namely keyboard,telephone wire,and printed circuit board (PCB)were studied and compared with each other.TG experiments were performed at a heating rate of 10℃/min up to 700℃.Arrhenius model was used to obtain the kinetic parameters from the TG data.From the model,the Arrhenius parameters such as activation energy and the pre-exponential factor were determined for each step in pyrolysis and combustion process.The results indicated that the thermal stability sequence for the three studied species can be described as:keyboard>PCB>telephone line.The activation energy order at the first process of combustion is in agreement with that of pyrolysis first step,but the activation energy at the first process of combustion is little more than that of the pyrolysis first step.

关键词： Electronic waste Pyrolysis Combustion Kinetic analysis

作者: Cui Quan Aimin Li Ningbo Gao

作者单位: State Key Laboratory of Fine Chemicals, Department of Chemical Engineering, Dalian University of Tec Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science

会议类型: 国际会议

会议名称: 2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)

会议地点: 大连

会议语种:英文

页码: 624-628

在线出版日期: 2013-06-04（万方平台首次上网日期，不代表论文的发表时间）