废塑料化学回收技术研究进展

Research Progress on Chemical Recycling Technologies of Waste Plastics

随着人类对塑料制品的需求日益增多,每年废塑料的数量也不断增加。通过高质量化学回收技术实现废塑料的升级再利用有望成为解决“白色污染”问题的关键。按照塑料品种分类,综述了废塑料化学回收技术取得的进展,代表性技术包括热化学转化技术、超临界水气化技术、焦耳热闪蒸技术、微波裂解技术等。同时对废塑料化学回收技术的发展方向也进行了讨论。

With the increasing demand for plastic products,the amount of plastic discarded each year was also increasing.Upgrading and reuse of waste plastics through high quality chemical recycling technology was expected to be the key to solve the“white pollution”problem.The progress of chemical recycling technologies of waste plastics according to the classification of plastic varieties was reviewed,including thermochemical conversion technology,supercritical water gasification technology,Joule-heating technology and microwave pyrolysis.Meanwhile,the development direction of chemical recycling technology in the future was also discussed.