摘要
基于全生命周期评价的方法学,采用GaBi软件数据库,在CML2001-Jan2016方法体系下将功能单位定为1 t再生橡塑复合建材,对废弃橡塑鞋材经加工得到再生橡塑复合建材从“摇篮”到“大门”的过程进行生命周期评价。研究表明,废弃橡塑鞋材在循环过程中对海洋生态毒性潜值影响最为显著,贡献率达到74.32%。敏感性分析表明,混合电力、聚酯多元醇及聚醚多元醇的用量变化是环境负荷波动的关键驱动因素(波动范围±(5%~7%))。因此,通过提高清洁能源发电占比并提升原材料利用率,能够降低该材料在碳循环过程中的温室气体排放量,并降低其对环境毒性的影响。
Based on the methodology of life cycle assessment(LCA)and GaBi software database,the functional unit was set as 1 t of recycled rubber-plastic composite building materials under the CML2001-Jan2016 methodology system,and then a cradle-to-gate life cycle assessment was conducted on the process of converting waste rubber and plastic footwear materials into recycled rubber-plastic composite building materials.The study shows that waste rubber and plastic footwear materials exert the most significant impact on marine ecotoxicity potential(MAETP)during their recycling processes,with a contribution rate of 74.32%.Sensitivity analysis indicates that variations in hybrid electricity consumption,polyester polyol and polyether polyol utilization serve as the key drivers of environmental load fluctuations(fluctuation range:±(5%—7%)).Therefore,the greenhouse gas emissions from the materials during carbon recycling processes can be reduced and their impacts on environmental toxicity can also be mitigated by increasing the share of clean energy in electricity generation and improving raw material utilization.
作者
王海云
王宇婷
王雅君
罗永晋
庄凌峰
WANG Haiyun;WANG Yuting;WANG Yajun;LUO Yongjin;ZHUANG Lingfeng(College of New Energy and Materials,China University of Petroleum,Beijing 102249,China;Engineering Research Center of Polymer Green Recycling,Ministry of Education/Fujian Normal University,Fuzhou 350007,China)
出处
《石油学报(石油加工)》
北大核心
2025年第5期1192-1201,共10页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家重点研发计划项目(2021YFB4000405)
国家自然科学基金项目(52270115)
中国石油大学(北京)科学基金项目(2462023YJRC032)资助。
关键词
生命周期评价
废弃橡塑鞋材
GaBi软件
碳循环
清洁能源
life cycle assessment
waste rubber and plastic footwear material
GaBi software
carbon cycle
clean energy
