循环二氧化碳经济中聚羟基烷酸酯（PHA）的生产：它在减少全球二氧化碳排放中的作用

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling Pub Date : 2025-04-10 DOI:10.1016/j.resconrec.2025.108303

Zhiyuan Zong , Chitong Rao , Changjiang Du , Rong Lu , D.Chester Upham

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引用次数: 0

摘要

化石燃料衍生塑料的使用大大加剧了资源枯竭和全球变暖。本研究提供了PHA生产的生命周期评估，包括：(1)具有从摇篮到坟墓范围的完全透明的工厂内数据；(2)具有不同输入变量的通用生命周期模型，以确保结果适用于不同情景；(3)环境和经济方面的优化途径；(4)预测潜在影响，并在不同的未来时间和地点与再生塑料进行比较。目前，PHA从摇篮到坟墓的碳足迹被确定为5.77 kg-CO2e/kg-PHA，几乎相当于传统化石塑料的碳足迹（5.52 kg-CO2e/kg-plastic），然而，随着2030/35年的合理改进，PHA的碳足迹将达到2.01 kg-CO2e/kg-PHA。成本也相似（1168美元/吨vs 1320美元/吨）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Polyhydroxyalkanoates (PHA) production in a circular CO2 economy: it's role in mitigating global CO2 emissions

查看原文本刊更多论文

Polyhydroxyalkanoates (PHA) production in a circular CO2 economy: it's role in mitigating global CO2 emissions

The use of fossil-fuel derived plastic significantly contributes to resource depletion and global warming. This study provides a life cycle assessment of PHA production, including (1) fully transparent in-plant data with a cradle-to-grave scope, (2) a universal life cycle model with varying input variables to ensure results are adaptable to different scenarios, (3) optimization pathways for both environmental and economic aspects, and (4) forecasts of potential impacts and compare with recycled plastic across different future timelines and locations. The cradle-to-grave carbon footprint of PHA is determined to be 5.77 kg-CO₂e/kg-PHA today - nearly equivalent to that of conventional fossil-based plastics (5.52 kg-CO₂e/kg-plastic) – however, with reasonable improvements projected for 2030/35, PHA would result in a carbon footprint of 2.01 kg-CO₂e/kg-PHA. The cost is also found to be similar ($1168/t vs $1320/t).

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来源期刊

Resources Conservation and Recycling 环境科学-工程：环境

CiteScore

22.90

自引率

6.10%

发文量

625

审稿时长

23 days

期刊介绍： The journal Resources, Conservation & Recycling welcomes contributions from research, which consider sustainable management and conservation of resources. The journal prioritizes understanding the transformation processes crucial for transitioning toward more sustainable production and consumption systems. It highlights technological, economic, institutional, and policy aspects related to specific resource management practices such as conservation, recycling, and resource substitution, as well as broader strategies like improving resource productivity and restructuring production and consumption patterns. Contributions may address regional, national, or international scales and can range from individual resources or technologies to entire sectors or systems. Authors are encouraged to explore scientific and methodological issues alongside practical, environmental, and economic implications. However, manuscripts focusing solely on laboratory experiments without discussing their broader implications will not be considered for publication in the journal.