中国PET行业物质代谢趋势及再生利用的减污降碳潜力

李睿; 顾一帆; 吴玉锋; 郭福

doi:10.13205/j.hjgc.202511024

中国PET行业物质代谢趋势及再生利用的减污降碳潜力

doi: 10.13205/j.hjgc.202511024

北京工业大学材料科学与工程学院, 北京 100124

基金项目:

国家重点研发计划课题“废塑料薄膜回收利用减污降碳协同增效机制”（2022YFC3901905）

详细信息

作者简介:
李睿（2000—），女，硕士研究生，主要研究方向为循环经济理论与实践。lirui@emails.bjut.edu.cn

通讯作者:
郭福（1971—），男，博士，教授，主要研究方向为电子封装用新型连接材料无铅钎料及新型能源材料热电材料。guo_fu@hotmail.com

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出版历程
- 收稿日期: 2024-07-22
- 录用日期: 2024-09-16
- 修回日期: 2024-08-30
- 网络出版日期: 2026-01-09

Trends in material metabolism of China's PET industry and potential of PET recycling for pollution and carbon reduction

College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 聚对苯二甲酸乙二醇酯（PET）广泛应用于瓶片、纺织纤维、薄膜等领域，由此产生大量废弃PET产品，造成的环境影响突出，亟需探索减污降碳协同增效机制。探索了中国PET行业2000—2025年的动态物质流规律，结合生命周期评价法测算了该行业的环境影响，揭示了再生利用是该行业减污降碳协同增效的最优路径。结果表明：2025年中国PET消费量将较2000年增长10.87倍，同年该行业的温室气体排放量及酸化潜力将分别达194.7 Mt CO₂-eq及0.16 Mt SO₂-eq，分别较2000年增长11.1，10.1倍；通过再生利用可有效替代原生资源开发过程的环境影响，且大幅降低填埋焚烧数量，2000—2025年再生利用法累计减少19.2%的温室气体排放量，累计人体毒性、酸化潜力和非生物资源消耗量分别下降21.9%、19.0%和18.7%。基于此，建议实现循环流程技术升级，加快绿色循环产业链建设，通过提高化学循环比例，实现再生资源的品质提高。
- PET行业 /
- 物质流分析 /
- 生命周期评价 /
- 减污降碳 /
- 再生利用
Abstract: Polyethylene terephthalate （PET） is widely used in bottle flakes， textile fibers， films， etc.， which generates a large amount of discarded PET products. This results in prominent environmental impacts and an urgent need to explore the mechanism of synergistic efficiency in pollution reduction and carbon reduction. This study identified the dynamic material flow pattern of China's PET industry from 2000 to 2025， measured the environmental impact of the business with the life cycle assessment method， and revealed that recycling is the optimal path for the industry to reduce pollution and synergize with carbon reduction. The results show that China's PET consumption in 2025 will increase by 10.87 times compared with 2000， and the industry's greenhouse gas emissions and acidification potential in 2025 will reach 194.7 Mt CO₂-eq and 0.16 Mt SO₂-eq， which are 11.1 times and 10.1 times higher than that in 2000， respectively； recycling can effectively replace the environmental impacts of the development process of primary resources， and significantly reduce the quantities for landfill and incineration. From 2000 to 2025， recycling method achieves a cumulative reduction of 19.2% of greenhouse gas emissions， and makes cumulative human toxicity， acidification potential and abiotic resource consumption decreased by 21.9%， 19.0% and 18.7%， respectively. It is recommended to realize the technological upgrading of recycling processes， accelerate the construction of green recycling industry chain， and realize the quality improvement of recycled resources by increasing the proportion of chemical recycling.
- PET industry /
- material flow analysis /
- life cycle assessment /
- pollution and carbon reduction /
- recycling

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参考文献(34)

[1]	CHILTON T，BURNLEY S，NESARATNAM S. A life cycle assessment of the closed-loop recycling and thermal recovery of post-consumer PET［J］. Resources，Conservation and Recycling，2010，54（12）：1241-1249.
[2]	SARDA P，HANAN J C，LAWRENCE J G，et al. Sustainability performance of polyethylene terephthalate，clarifying challenges and opportunities［J］. Journal of Polymer Science，2021，60（1）：7-31.
[3]	BARTOLOMÉ L，IMRAN M，GYOO B，et al. Recent developments in the chemical recycling of PET［M］// Material Recycling-Trends and Perspectives，2012：65-84.
[4]	QIAN B Z. PET production status in China［J］. Polyester Industry，2017，30（1）：5-7. 钱伯章. 我国PET生产现状［J］. 聚酯工业，2017，30（1）：5-7.
[5]	QIU F G，TONG Y，WANG X Q. Research progress on occurrence status and ecologicalhazards of microplastics in water environment［J］. Environmental Engineering，2022，40（3）：221-228. 仇付国，童诗雨，王肖倩. 水环境中微塑料赋存现状及生态危害研究进展［J］. 环境工程，2022，40（3）：221-228.
[6]	YANG Y，HE W Q. Research status and progress of microplastic pollution in farmland soil［J］. Environmental Engineering，2021，39（5）：156-164. 杨扬，何文清. 农田土壤微塑料污染现状与进展［J］. 环境工程，2021，39（5）：156-164.
[7]	WANG Jiajia，Zhao Nana，Li Jinhui. Marine microplastic pollution status and prevention suggestions in China［J］. China Environmental Science，2019，39（7）：3056-3063. 王佳佳，赵娜娜，李金惠. 中国海洋微塑料污染现状与防治建议［J］. 中国环境科学，2019，39（7）：3056-3063.
[8]	CHU J，ZHOU Y，CAI Y，et al. A life-cycle perspective for analyzing carbon neutrality potential of polyethylene terephthalate（PET）plastics in China［J］. Journal of Cleaner Production，2022，330：129872.
[9]	The 14th Five-Year Plan for National Economic and Social Development of the People's Republic of China and the Outline of the Vision Goals for 2035［EB/OL］. 2021-3-13.［ 2023-5-22］. http：//www.moe.gov.cn/jyb_xwfb/xw_zt/moe_357/2021/2021_zt01/yw/202103/t20210315_519738.html 中华人民共和国国民经济和社会发展第十四个五年规划和2035年远景目标纲要［EB/OL］. 2021-3-13.［ 2023-5-22］. http：//www.moe.gov.cn/jyb_xwfb/xw_zt/moe_357/2021/2021_zt01/yw/202103/t20210315_519738.html
[10]	MA Z F，NIU G Q，LU S. Development status and trend analysis of China's plastics processing industry［J］. China Plastics，2022，36（6）：142-148. 马占峰，牛国强，芦珊. 中国塑料加工业［J］. 中国塑料，2022，36（6）：142-148.
[11]	SUN Y Z，LIN Y，STEINDAL E H，et al. How can the scope of a new global legally binding agreement on plastic pollution to facilitate an efficient negotiation be clearly defined？［J］. Environmental Science& Technology，2021，55（10）：6527-6528.
[12]	GU B，JIANG S，WANG H，et al. Characterization，quantification and management of China’s municipal solid waste in spatiotemporal distributions：a review［J］. Waste Management，2017，61：67-77.
[13]	TAN Q，HUANG G H，CAI Y P. Waste management with recourse：an inexact dynamic programming model containing fuzzy boundary intervals in objectives and constraints［J］. Journal of Environmental Management，2010，91（9）：1898-1913.
[14]	ZHOU C，GONG Z，HU J，et al. A cost-benefit analysis of landfill mining and material recycling in China［J］. Waste Management，2015，35（1）：191-198.
[15]	LUAN X，CUI X，ZHANG L，et al. Dynamic material flow analysis of plastics in China from 1950 to 2050［J］. Journal of Cleaner Production，2021，327：129492.
[16]	HE R，SMALL M J. Forecast of the U.S. copper demand：a framework based on scenario analysis and stock dynamics［J］. Environmental science& technology，2022，56（4）：2709-2717.
[17]	UEKERT T，DESVEAUX J S，SINGH A，et al. Life cycle assessment of enzymatic poly（ethylene terephthalate）recycling［J］. Green Chemistry，2022，24（17）：6531-6543.
[18]	IRIS V G，CHRISTIAN M，LORIE H，et al. Comparative cradle-to-grave life cycle assessment of bio-based and petrochemical PET bottles［J］. Science of the Total Environment，2021，793：148642.
[19]	International Energy Agency. CO₂ emissions in 2023［R/OL］.［ 2024-11-28］. https：//www.iea.org/reports/co2-emissions-in-2023.
[20]	China National Textile and Apparel Council. China textile industry development report［R］. Beijing：China Textile& Apparel Press，2018. 中国纺织工业联合会. 中国纺织工业发展报告［R］. 北京：中国纺织出版社，2018.
[21]	China Petroleum and Chemical Industry Federation. China chemical industry yearbook［J］. Beijing：China National Chemical Information Center，2016. 中国石油和化学工业联合会. 中国化学工业年鉴［J］. 北京：中国化工信息中心，2016.
[22]	National Bureau of Statistics of the People's Republic of China. China statistical yearbook［J］. Beijing：China Statistics Press，2000-2020. 中华人民共和国国家统计局. 中国统计年鉴［J］. 北京：中国统计出版社，2000-2020.
[23]	Analysis of capacity distribution，import and export volume and price changes of China's polyester filament industry in 2019［EB/OL］.（2020-06-00）［ 2024-11-28］. https：//www.chyxx.com/industry/202006/873929.html. 2019年中国涤纶长丝行业产能分布、进出口量及价格变化分析［EB/OL］.（2020-06-00）［ 2024-11-28］. https：//www.chyxx.com/industry/202006/873929.html.
[24]	Analysis of production，capacity，import and export，demand and key enterprises of China's bottle-grade PET in 2022［EB/OL］.（2022-00-00）［ 2024-11-28］. https：//xueqiu.com/1973934190/222035951. 2022年中国瓶级PET产量、产能、进出口、需求量及重点企业分析［EB/OL］.（2022-00-00）［ 2024-11-28］. https：//xueqiu.com/1973934190/222035951.
[25]	Analysis of market supply and demand situation of China's PET industry in 2021［EB/OL］.（2021-09-27）［ 2024-11-28］. https：//www.qianzhan.com/analyst/detail/220/210927-ea32ea20.html. 2021年中国聚酯（PET）行业市场供需现状分析［EB/OL］.（2021-09-27）［ 2024-11-28］. https：//www.qianzhan.com/analyst/detail/220/210927-ea32ea20.html.
[26]	Report states that domestic bottle-grade PET consumption continues to grow［EB/OL］.（2021-09-03）［ 2024-11-28］. http：//www.zqrb.cn/stock/hangyeyanjiu/2021-09-03/A1630653080921.html. 报告称国内瓶级PET的消费量持续增长头部企业积极投身PET瓶环保工作［EB/OL］.（2021-09-03）［ 2024-11-28］. http：//www.zqrb.cn/stock/hangyeyanjiu/2021-09-03/A1630653080921.html.
[27]	GAO X S，WANG S F，ZHOU N. Development status of polyester industry in China［J］. Advanced Materials Industry，2012（2）：44-49. 高小山，王爽芳，周娜. 我国聚酯产业的发展现状［J］. 新材料产业，2012（2）：44-49.
[28]	ERIKSEN M K，PIVNENKO K，FARACA G，et al. Dynamic material flow analysis of PET，PE，and PP flows in Europe：evaluation of the potential for circular economy［J］. Environmental Science& Technology，2020，54（24）：16166-16175.
[29]	New opportunities and characteristics of PET bottle development［J］. World Plastics，2009，27（6）：62-64. PET瓶发展的新机遇和新特点［J］. 国外塑料，2009，27（6）：62-64.
[30]	China will basically achieve full coverage of garbage classification by the end of 2025［EB/OL］.（2023-05-24）［ 2023-07-24］. https：//www.gov.cn/lianbo/bumen/202305/content_6875926.htm. 我国将于2025年底前基本实现垃圾分类全覆盖［EB/OL］.（2023-05-24）［ 2023-07-24］. https：//www.gov.cn/lianbo/bumen/202305/content_6875926.htm.
[31]	ZHOU H T，XU X W，SHU W. Development and trend of domestic and foreign polyester industry chain［J］. China Textile Leader，2017（12）：60-62. 周华堂，许贤文，舒伟. 国内外聚酯产业链发展及趋势［J］. 纺织导报，2017（12）：60-62.
[32]	CHEN Y，WANG Y，HE F，et al. Research progress on kinetic model construction and process simulation of polyester synthesis reaction［J］. China Synthetic Fiber Industry，2018，41（5）：46-52. 陈咏，王颖，何峰，等. 聚酯合成反应动力学模型构建及流程模拟的研究进展［J］. 合成纤维工业，2018，41（5）：46-52.
[33]	PAN H Y. Manufacturing process and application of PET polyester bottle［J］. Guangzhou Chemical Industry，2014，42（22）：36-37. 潘焕玉. PET聚酯瓶的制造工艺与应用［J］. 广州化工，2014，42（22）：36-37.
[34]	WANG X L，YU G Q，WU B Z，et al. Performance study of supercritical carbon dioxide in decolorization of waste polyester textiles［J］. Environmental Engineering，2023，41（S2）：622-627. 王星丽，于刚强，吴宝宅，等. 超临界CO₂在废旧聚酯纺织品脱色中的性能研究［J］. 环境工程，2023，41（增刊2）：622-627.