Nature Chemical Engineering：先进塑料废弃物回收的循环解决方案分析
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Nature子刊LCA+TEA对比三种塑料回收路径
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化学回收不可替代但碳足迹高于机械回收
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醇解和酶解在PET回收中优于热解
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最优路径：机械回收+化学回收分级处理
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为政策制定和产业决策提供数据框架
发表于Nature Chemical Engineering的论文系统分析了先进塑料废弃物回收的循环解决方案。研究采用全生命周期评估（LCA）和技术经济分析（TEA）方法，对比了机械回收、化学回收（热解、醇解、酶解）和焚烧能源回收三种主要路径的环境影响和经济可行性。关键发现包括：化学回收在混合塑料处理方面具有不可替代性但碳足迹高于机械回收；醇解和酶解路线在PET回收中比热解更具选择性和能效优势；整体最优路径为机械回收+化学回收互补的分级处理模式。研究为政策和产业决策者提供了基于数据的塑料回收技术路线选择框架。
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Nature Briefing
Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily. [...] A circular plastics economy can leverage the lightweight, strong and durable characteristics of macromolecular materials, while simultaneously reducing the negative environmental impacts associated with polymer waste. Advanced recycling technologies provide an opportunity to valorize plastics waste and extend the lifespan of these materials by converting waste into new monomers, polymers or specialty chemicals. Although many advanced technologies appear promising, assessments of economic and environmental sustainability are often not conducted in a standardized fashion and neglect factors such as plastics waste transportation, sorting and pretreatment. These shortcomings can lead to inaccurate or misleading predictions, reduce opportunities for optimization and limit industrial relevance. [...] ### Authors and Affiliations
Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE, USA
Kevin D. Nixon, Zoé O. G. Schyns, Yuqing Luo, Marianthi G. Ierapetritou, Dionisios G. Vlachos, LaShanda T. J. Korley & Thomas H. Epps, III
Center for Plastics Innovation (CPI), University of Delaware, Newark, DE, USA
Zoé O. G. Schyns, Dionisios G. Vlachos, LaShanda T. J. Korley & Thomas H. Epps, III
Department of Materials Science and Engineering, University of Delaware, Newark, DE, USA
LaShanda T. J. Korley & Thomas H. Epps, III
Center for Research in Soft matter and Polymers (CRiSP), University of Delaware, Newark, DE, USA
LaShanda T. J. Korley & Thomas H. Epps, III
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