摘要
塑料产量的增加以及废旧塑料的不当处理使得塑料垃圾的堆积问题愈发严重。废旧聚烯烃塑料的资源化利用是实现高价值回收和解决环境问题的主要途径,并已受到广泛的关注。通过将废旧聚烯烃解聚,长链烃的碳碳键断裂并得到短链烃的化合物是实现废旧聚烯烃塑料高效资源化利用的手段之一,并已取得不错进展。总结了近年来为解聚废旧聚乙烯和聚丙烯塑料而开发的催化剂,鉴于目前解聚反应催化剂昂贵、失活现象严重、产品的选择性较低等问题,希望为未来催化剂的开发提供研究基础。
The increase in plastic production and the improper treatment of waste plastics are exacerbating the accumulation of plastic waste.Recycling of waste polyolefin plastics represents a major approach to realize high value recovery and address environmental issues,and it has garnered widespread attention.Depolymerizing waste polyolefins,breaking the carbon-carbon bonds of long-chain hydrocarbons,and obtaining short-chain hydrocarbon compounds constitute one of the efficient methods for utilizing waste polyolefin plastics,and significant progress has been made in this regard.This paper reviewed the catalysts developed in recent years for the depolymerization of waste polyethylene and polypropylene plastics.Considering the current challenges such as expensive depolymerization catalysts,severe deactivation,and low product selectivity,this review aims to lay the groundwork for the future development of catalysts.
作者
黄礼智
段百超
曹忠
王路辉
HUANG Li-zhi;DUAN Bai-chao;CAO Zhong;WANG Lu-hui(Zhejiang Key Laboratory of Petrochemical Pollution Control,Zhejiang Ocean University,Zhoushan 316022,China;National-Local Joint Engineering Laboratory of Harbor Oil&Gas Storage and Transportation Technology,Zhejiang Ocean University,Zhoushan 316022,China;Zhejiang Petroleum&Chemical Co.,Ltd.,Zhoushan 316299,China)
出处
《化学试剂》
CAS
2024年第7期100-107,共8页
Chemical Reagents
基金
浙江省自然科学基金联合基金项目(LZY23B030005)
岱山科技计划项目(202203)。
关键词
聚烯烃
废旧塑料
解聚反应
催化剂
活性位
polyolefin
waste plastics
depolymerization reaction
catalyst
active site
