Chengfei Liu, Chunyu Li, Bo Shu, Hongying Xia, Dafang Liu
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引用次数: 0
摘要
本研究在惰性气氛中对废印刷电路板（WPCB）进行了微波热解，考察了热解温度和氮气流速对热解产物产率和组成的影响。随着热解温度的升高，液态产物的产率逐渐增加，固态产物的产率逐渐减少。在 600°C 时，各相的产率趋于稳定。当温度继续升高时，H2 和 CO 的含量减少，液态产物中 C6 ~ C9 的含量也减少。微波加热促进了溴化环氧树脂的热解，有助于提高有价物质的回收率，减少废物处理对环境的影响。该研究表明，氮气环境下微波热解木塑复合板在绿色回收工艺中具有巨大潜力。
Preliminary strategy and product analysis of microwave pyrolysis of waste printed circuit board
In this study, microwave pyrolysis of waste printed circuit boards (WPCBs) was carried out in an inert atmosphere, and the effects of pyrolysis temperature and nitrogen flow rate on the yield and composition of pyrolysis products were investigated. With the increase of pyrolysis temperature, the yield of liquid product increases gradually, and the yield of solid product decreases gradually. At 600°C, the yield of each phase tends to be stable. When the temperature continues to rise, the content of H2 and CO decreases, and the content of C6 ~ C9 in the liquid product decreases. Microwave heating promotes the pyrolysis of brominated epoxy resin, which helps to improve the recovery rate of valuable substances and reduce the environmental impact of waste treatment. This study demonstrates that the microwave pyrolysis of WPCBs in nitrogen atmosphere has great potential in the green recovery process.
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