在美国扩大弹性塑料包装回收利用的影响
Michael Severson1, Tessa Lee2, Yuan-Yuan Lee1
1Idaho National Laboratory, Idaho Falls, ID, USA.
Waste management (New York, N.Y.)
|January 17, 2025
概括
美国增加柔性塑料包装 (FPP) 的回收利用率,到2050年可以将回收率提高到61%,从而大大减少温室气体排放. 这项研究模拟了FPP回收途径的市场动态.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 经济学 经济学 经济学
背景情况:
- 柔性塑料包装 (FPP) 是美国一个显著且不断增长的废物流.
- 目前的FPP回收率非常低,为2%,远低于2050年全国50%的目标.
- 在FPP废物管理和实现国家回收目标方面存在很大的差距.
研究的目的:
- 评估FPP在美国的增强回收利用的经济可行性和环境优势.
- 探索回收FPP的三个主要下游产品应用:薄膜,屋顶覆盖板和托盘.
- 确定刺激回收FPP材料需求的机制.
主要方法:
- 开发一个系统动态模型来模拟FPP回收的市场动态.
- 基于先前的生命周期评估和试点FPP回收设施的技术经济分析.
- 在美国市场中模拟大规模的FPP回收部署场景.
主要成果:
- 在乐观的替代场景下,预计到2050年FPB回收率将从2%增加到22-61%.
- 证明了环境效益,包括温室气体排放量比基线减少2.7-8.2%.
- 敏感性分析表明了关键的市场驱动因素,特别是回收薄膜和屋顶覆盖板的定价.
结论:
- 大规模的FPP回收是可行的,可以大大为国家回收目标做出贡献.
- 在下游产品中使用回收的FPP提供了切实的环境效益,主要是通过减少温室气体排放.
- 市场动态,特别是回收材料的定价,是影响FPP回收计划成功的关键因素.
更多相关视频
相关概念视频
Plastic Behavior
186
A material's elastic behavior is characterized by the disappearance of stress once the load is removed, allowing the material to return to its original state. However, when stress surpasses the yield point, yielding commences, marking the onset of plastic deformation or permanent set. This change from elastic to plastic behavior is influenced by the peak stress value and the duration before the load is removed. An intriguing observation occurs when a specimen is loaded, unloaded, and...
186
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K


