废旧光盘的热解实验研究及其回收利用

PYROLYSIS EXPERIMENTS AND RECYCLING OF OLD CD'S

为了探索光盘的热解试验,利用TG/DTG和DSC技术对废旧光盘的热解特性和热值进行试验研究。由废弃光盘得出的曲线与PC曲线相似,说明光盘的主成分为聚碳酸酯,聚碳酸酯的着火点低、燃尽温度高、燃烧热值高。废旧光盘中含有聚碳酸酯,可以将其作为钢铁冶金或者火力发电等高能耗生产中的固体燃料。这样既减少废旧光盘造成的固体污染,也使资源得到充分利用。由实验获得废旧光盘的热分解开始温度为460℃终止温度870℃,热值达到-19 258 J/g。

To explore the pyrolysis experiment of CD, the both waste pyrolysis characteristics of and the calorific value of CD were studtied using TG/DTG and DSC technology.Curve similar to PC curve obtained from waste disc,CD the main compon-ent of polycarbonate, low ignition of PC（polycarbonate）, high burning temperature and burning high calorific value.Polycarbonate is contained in waste disc, it can be as iron and steel metallurgy or thermal power and high energy consumption in the production of solid fuel. Reduce waste solid pollution caused by the CD already so, also make full use of the resources.After the research,the pyrolysis starting temperature of old CD was 460 ℃, terminated temperature was 870 ℃,heating value reached- 19 258 J/g.