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Waste Polypropylene Plastic Recycling toward Climate Change Mitigation and Circular Economy: Energy, Environmental, and Technoeconomic Perspectives
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-10-16 , DOI: 10.1021/acssuschemeng.0c06311 Raaj R. Bora 1 , Ralph Wang 2 , Fengqi You 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2020-10-16 , DOI: 10.1021/acssuschemeng.0c06311 Raaj R. Bora 1 , Ralph Wang 2 , Fengqi You 1
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Chemical recycling has the potential to reduce the environmental impacts from waste plastics, mitigate climate change, and contribute to circular economy. This study compares the environmental and economic performance of two such technologies, fast pyrolysis and gasification, with conventional disposal methods for treating polypropylene (PP) waste. High-fidelity process simulations for each technology are conducted to obtain the necessary mass, energy, and economic data for subsequent analyses. Through an extensive life cycle assessment utilizing the IPCC 2013, ReCiPe, and ILCD 2.0 methods, fast pyrolysis and gasification are determined to have lower overall greenhouse gas emissions and better overall environmental performance than the conventional methods of incineration and landfilling. The chemical recycling systems are also found to be considerably profitable with fast pyrolysis and gasification having total NPVs of $149MM and $96MM, respectively. The discount rate, waste PP price, and plant life are the most influential factors for the economic performance of both systems.
中文翻译：
废聚丙烯塑料的回收利用，以缓解气候变化和循环经济：能源，环境和技术经济的观点
化学回收具有减少废塑料对环境的影响，减轻气候变化并促进循环经济的潜力。这项研究将快速热解和气化这两种技术的环境和经济性能与用于处理聚丙烯（PP）废物的常规处理方法进行了比较。进行每种技术的高保真过程仿真，以获得必要的质量，能量和经济数据，以进行后续分析。通过使用IPCC 2013，ReCiPe和ILCD 2.0方法进行的广泛生命周期评估，与常规的焚化和填埋方法相比，快速热解和气化可确定具有更低的总体温室气体排放量和更好的总体环境性能。通过快速热解和气化，总净现值分别为$ 149MM和$ 96MM，化学回收系统也可观地获利。折扣率，废旧聚丙烯价格和工厂寿命是影响这两个系统经济性能的最重要因素。
更新日期：2020-11-02
中文翻译：
废聚丙烯塑料的回收利用，以缓解气候变化和循环经济：能源，环境和技术经济的观点
化学回收具有减少废塑料对环境的影响，减轻气候变化并促进循环经济的潜力。这项研究将快速热解和气化这两种技术的环境和经济性能与用于处理聚丙烯（PP）废物的常规处理方法进行了比较。进行每种技术的高保真过程仿真，以获得必要的质量，能量和经济数据，以进行后续分析。通过使用IPCC 2013，ReCiPe和ILCD 2.0方法进行的广泛生命周期评估，与常规的焚化和填埋方法相比，快速热解和气化可确定具有更低的总体温室气体排放量和更好的总体环境性能。通过快速热解和气化，总净现值分别为$ 149MM和$ 96MM，化学回收系统也可观地获利。折扣率，废旧聚丙烯价格和工厂寿命是影响这两个系统经济性能的最重要因素。
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