Kim Seung Won, Kim Yong Tae, Tsang Yiu Fai, Lee Jechan
Department of Global Smart City, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Chemical and Process Technology Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea.
Sci Total Environ. 2023 Dec 10;903:166789. doi: 10.1016/j.scitotenv.2023.166789. Epub 2023 Sep 4.
The concept of monomer recovery from plastic waste has recently gained broad interest in industry as a powerful strategy to reduce the environmental impacts of chemical production and plastic waste pollution. Herein, we focus on the ethylene recovery from plastic waste via thermochemical pathways, such as pyrolysis, gasification, and steam cracking of pyrolysis oil derived from plastic waste. Ethylene recovery performance of different thermochemical conversion processes is evaluated and compared with respect to plastic waste types, process types, ethylene recovery yields, and process operating conditions. Based on the analysis of available data in earlier literature, future research is recommended to further enhance the viability of the thermochemical ethylene recovery technologies. This review is expected to offer a meaningful guideline on developing efficient platforms for the value-added monomer recovery from plastic waste through thermochemical conversion routes. It is also hoped that this review serves as a preliminary step to encourage the widespread adoption of thermochemical conversion-based ethylene recovery from plastic waste by industries.
从塑料废料中回收单体的概念最近在工业界引起了广泛关注，这是一种减少化学生产对环境影响和塑料废料污染的有力策略。在此，我们专注于通过热化学途径从塑料废料中回收乙烯，例如对源自塑料废料的热解油进行热解、气化和蒸汽裂解。针对不同的塑料废料类型、工艺类型、乙烯回收率和工艺操作条件，评估并比较了不同热化学转化工艺的乙烯回收性能。基于对早期文献中现有数据的分析，建议未来开展研究以进一步提高热化学乙烯回收技术的可行性。本综述有望为通过热化学转化路线从塑料废料中回收增值单体开发高效平台提供有意义的指导方针。也希望本综述作为初步步骤，鼓励工业界广泛采用基于热化学转化从塑料废料中回收乙烯的方法。
