解决不可降解的聚合物废物日益严峻的环境挑战,世界正努力应对人口增长驱动的不断增长的生产,现代化,和工业化。热解已成为将不可降解的聚合物废物转化为有价值的燃料和其他化学产品的有前途的战略解决方案。这项研究详细介绍了从聚苯乙烯(PS)和聚丙烯(PP)混合物的微波共热解中回收高质量的油。PS/PP比例(30:0,10:20,15:15,20:10和30:0g)的影响,微波功率(400、500、600、700和800W),和热解温度(450、500、550、600和650°C)对油收率和组分的影响进行了研究,和协同效应,还详细介绍了更高的热值(HHV)和热效率。结果表明,最高的油产率为93.84wt。当PS/PP比例时,微波功率,和热解温度调整为20:10克,600W,550°C,分别。最高热值和热效率分别为45.67MJ/kg和56.53%,分别。芳烃的含量,环状碳氢化合物,和含氧烃在1.92-58.88面积%的范围内变化,10.47-41.76面积%,和5.06-24.36面积%,分别。主要碳数的含量为C8和C9,它们的变化范围为2.51-43.66面积%和7.31-20.09面积%,分别。这项研究的结果表明,使用微波辐射可以从聚苯乙烯和聚丙烯塑料中回收高质量的油,有助于更清洁的塑料回收方式。
Addressing the mounting environmental challenge of non-degradable polymeric waste, the world grapples with escalating production driven by population growth, modernization, and industrialization. Pyrolysis has emerged as a promising and strategic solution for transforming non-degradable polymeric waste into valuable fuels and other chemical products. This study detailed the high-quality oil recovery from microwave co-pyrolysis of polystyrene (PS) and
polypropylene (PP) mixtures. The effects of PS/PP ratio (30:0, 10:20, 15:15, 20:10, and 30:0 g), microwave power (400, 500, 600, 700, and 800 W), and pyrolysis temperature (450, 500, 550, 600, and 650 °C) on oil yield and components were studied, and the synergistic effect, higher heating value (HHV) and thermal efficiency were also detailed. The results revealed that the highest oil yield was 93.84 wt% when PS/PP ratio, microwave power, and pyrolysis temperature were adjusted at 20:10 g, 600 W, and 550 °C, respectively. And the maximum higher heating value and thermal efficiency were 45.67 MJ/kg and 56.53%, respectively. The contents of aromatic hydrocarbons, cyclic hydrocarbons, and oxygenated hydrocarbons varied in the ranges of 1.92-58.88 area%, 10.47-41.76 area%, and 5.06-24.36 area%, respectively. The contents of the major carbon numbers were C8 and C9, and they varied in 2.51-43.66 area% and 7.31-20.09 area%, respectively. The results presented in this study showed that high-quality oil can be recovered from polystyrene and
polypropylene plastics by using microwave irradiation, contributing to cleaner ways for plastics recycling.