【摘要】 采用真空热解技术对真空下线路板废渣进行了热解动力学研究,以期为真空热解批量回收处理设备的设计提供理论依据.根据线路板废渣的热失重微分(DTG)曲线,讨论了其在三个失重反应阶段的情况,计算得到反应级数为3,活化能为68.001 kJ/mol,指前因子为4.67×107m in-1.与氮气下线路板的热解相比,真空下的热解反应活化能降低了100 kJ/mol左右.同时,根据计算所得动力学参数模拟的真空热解DTG曲线与实验所得的DTG曲线相一致.更多还原

【Abstract】 The introduction of vacuum pyrolysis into the treatment of waste print circuit board（WPCB） was first proposed in this paper.In order to lay a theoretical foundation for the batch treatment,the pyrolysis kinetics was investigated.Based on the differential thermo-gravimetry（DTG） curves of WPCB,the three stages of pyrolysis of WPCB were then discussed,and the corresponding kinetic parameters were found,that is,the reaction order is 3,the average activation energy is 68.001kJ/mol,and the pre-exponent factor is 4.67×10⁷min^-1.As compared with the pyrolysis in N₂,the pyrolysis activation energy in vacuum decreases by about 100kJ/mol.Furthermore,there is little difference between the simulated DTG curves obtained by computer and by experiments.更多还原