摘要
废塑料在自然界的累积造成了严重的环境问题。从环境保护及资源利用角度出发,亟需对废塑料进行回收利用。化学回收法可以将废塑料高选择性地转化为高附加值化学品。总结了近年来加聚类废塑料化学回收技术的研究进展,包括直接热解、催化热解、加氢裂化及其他化学回收法,着重探讨催化剂、催化体系对产物分布的影响及相应的反应机理。指出高效催化技术是推动废塑料化学回收技术实现工业应用的关键。
The accumulation of waste plastics in nature is causing serious environmental pollution.To solve the environmental pollution and utilize waste plastics as one kind of carbon resource,it is urgent to distribute waste plastics to recycling routes.Chemical recycling can depolymerize waste plastics into high value-added chemicals with high selectivity.This paper summarizes the recent research progress of chemical recycling,including direct pyrolysis,catalytic pyrolysis,hydrocracking and other recycling methods,and focuses on the influence of catalysts and catalytic systems on product distribution and the corresponding reaction mechanism.Catalytic strategies should play an important role in promote the industrial application of waste plastic chemical recycling technology.
作者
马文迪
余强
赵多
吕宇皓
刘仲能
Ma Wendi;Yu Qiang;Zhao Duo;LüYuhao;Liu Zhongneng(Sinopec Shanghai Research Institute of Petrochemical Technology Co.,Ltd.,Shanghai 201208,China)
出处
《工业催化》
CAS
2023年第7期15-22,共8页
Industrial Catalysis
关键词
三废处理与综合利用:废塑料
化学回收
直接热解
催化热解
加氢裂化
treatment and integrated application of three wastes
waste plastic
chemical recycling
direct pyrolysis
catalytic pyrolysis
hydrocracking
