退役PET高值回用的研究进展

doi:10.11949/0438-1157.20241277

化工学报 ›› 2025, Vol. 76 ›› Issue (2): 532-542.DOI: 10.11949/0438-1157.20241277

• 综述与专论 • 上一篇

退役PET高值回用的研究进展

郭琛龙¹^,²(), 彭正奇¹^,², 姜冰雪¹^,², 吴正凯¹^,², 王德良²(), 王青月²(), 郑杰元², Ho Lim Khak², 史胜斌², 杨轩¹^,², 刘平伟¹^,², 王文俊¹^,²()

^1.浙江大学化学工程联合国家重点实验室，浙江杭州 310027
^2.浙江大学衢州研究院，浙江衢州 324000

收稿日期:2024-11-11 修回日期:2024-12-13 出版日期:2025-03-25 发布日期:2025-03-10
通讯作者: 王德良,王青月,王文俊
作者简介:郭琛龙（1998—），男，硕士研究生，22328116@zju.edu.cn
基金资助:
浙江省自然科学基金重大项目(LD24E030003);山东省重点研究计划项目(2021CXGC010810);杭州市重点研发计划项目(2023SZD0092);浙江大学化学工程国家重点实验室项目(SKE-ChE-23T05);浙江大学衢州研究院项目(IZA2020KJ2004)

Advances in upcycling of post-consumer PET

Chenlong GUO¹^,²(), Zhengqi PENG¹^,², Bingxue JIANG¹^,², Zhengkai WU¹^,², Deliang WANG²(), Qingyue WANG²(), Jieyuan ZHENG², Lim Khak Ho², Shengbin SHI², Xuan YANG¹^,², Pingwei LIU¹^,², Wenjun WANG¹^,²()

^1.State Key Laboratory of Chemical Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China
^2.Institute of Zhejiang University - Quzhou, Quzhou 324000, Zhejiang, China

Received:2024-11-11 Revised:2024-12-13 Online:2025-03-25 Published:2025-03-10
Contact: Deliang WANG, Qingyue WANG, Wenjun WANG

摘要/Abstract

摘要：

回收并提升退役聚对苯二甲酸乙二醇酯（PET）的应用价值，对于减少资源浪费和环境污染具有重要意义。综述了退役PET的回收处理技术及高值化再利用的研究进展，概述了包括填埋、焚烧、热解、生物酶降解在内的回收方法，并深入探讨了化学回收及光、电、氢解等催化回收技术，重点聚焦了退役PET向再生PET、共聚酯、小分子化学品、复合材料及其他材料等高值产品的转化路径。通过采用解聚-再聚合一体化工艺，可有效减少退役PET解聚过程中的产物分离步骤，在降低成本的同时，实现了产品升级。随着退役PET分拣除杂等预处理与解聚效率的提升、闭环回收系统的构建、增效添加剂的研发及高效生物解聚技术的开拓，将极大推动退役PET高值化再利用的工业化进程。

关键词: 退役PET, 回收, 高值回用, 降解, 可持续性

Abstract:

Recycling and enhancing the application value of retired polyethylene terephthalate (PET) is of great significance for reducing resource waste and environmental pollution. This paper reviews the research progress of recycling and high-value reuse of retired PET, summarizes the recycling methods including landfill, incineration, pyrolysis, and bio-enzyme degradation, and deeply discusses chemical recycling and catalytic recycling technologies such as photo-, electro-, and hydrogenolysis, focusing on the transformation path of retired PET into high-value products such as recycled PET, copolyesters, small molecule chemicals, composite materials, and other materials. By adopting an integrated depolymerization-repolymerization process, the separation steps in the depolymerization of retired PET can be effectively reduced, thereby lowering costs while achieving product upgrading. With the improvement of pretreatment and depolymerization efficiency in sorting and impurity removal of retired PET, the construction of closed-loop recycling systems, the development of efficiency-enhancing additives, and the exploration of efficient biological depolymerization technologies, the industrialization of high-value reuse of retired PET will be greatly promoted.

Key words: post-consumer PET, recovery, upcycling, degradation, sustainability

中图分类号:

TQ 028.8

郭琛龙, 彭正奇, 姜冰雪, 吴正凯, 王德良, 王青月, 郑杰元, Ho Lim Khak, 史胜斌, 杨轩, 刘平伟, 王文俊. 退役PET高值回用的研究进展[J]. 化工学报, 2025, 76(2): 532-542.

Chenlong GUO, Zhengqi PENG, Bingxue JIANG, Zhengkai WU, Deliang WANG, Qingyue WANG, Jieyuan ZHENG, Lim Khak Ho, Shengbin SHI, Xuan YANG, Pingwei LIU, Wenjun WANG. Advances in upcycling of post-consumer PET[J]. CIESC Journal, 2025, 76(2): 532-542.

图/表 4

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回收方法	催化剂	主产物	文献
光催化	CdS/CdO _x	甲酸、乙酸酯、乳酸、H₂	[60]
	Pt/g-C₃N₄	甲酸、H₂	[61]
	CN _x /Ni₂P	醋酸、甲酸、乙醇酸、乙二醛、H₂	[66]
	d-NiPS₃/CdS	甲酸酯、乙酸、乙醇酸、H₂	[67]
	MoS₂/Cd _x Zn_1-_x S	甲酸盐、乙醇酸盐甲基乙二醛、H₂	[68]
	碳化量子点/g-C₃N₄	乙醇酸、乙醇醛、乙醇、H₂	[69]
	g-C₃N₄-CNTs-NiMo	乙二醛、乙醇酸盐、H₂	[70]
电催化	AuNi(OH)₂	乙醇酸、H₂	[63]
	CoNi _x P/NF	二甲酸钾、TPA、H₂	[71]
	Pt₁/Ni(OH)₂	二甲酸钾、TPA、H₂	[72]
	Pd₆₇Ag₃₃合金气凝胶	甲酸、乙醇酸、H₂	[73]
	NiCu/NF	甲酸盐、H₂	[74]
	NiCo₂O₄、SnO₂	甲酸、H₂	[75]
氢解	Ru-PNN配合物	TPA、EG	[76]
	膦-二胺配体的Ru配合物	TPA、EG	[77]
	基于氮杂环卡宾的钳形锰催化剂	TPA、EG	[78]
	CoMo@NC	TPA、EG	[79]

回收方法	催化剂	主产物	文献
光催化	CdS/CdO _x	甲酸、乙酸酯、乳酸、H₂	[60]
	Pt/g-C₃N₄	甲酸、H₂	[61]
	CN _x /Ni₂P	醋酸、甲酸、乙醇酸、乙二醛、H₂	[66]
	d-NiPS₃/CdS	甲酸酯、乙酸、乙醇酸、H₂	[67]
	MoS₂/Cd _x Zn_1-_x S	甲酸盐、乙醇酸盐甲基乙二醛、H₂	[68]
	碳化量子点/g-C₃N₄	乙醇酸、乙醇醛、乙醇、H₂	[69]
	g-C₃N₄-CNTs-NiMo	乙二醛、乙醇酸盐、H₂	[70]
电催化	AuNi(OH)₂	乙醇酸、H₂	[63]
	CoNi _x P/NF	二甲酸钾、TPA、H₂	[71]
	Pt₁/Ni(OH)₂	二甲酸钾、TPA、H₂	[72]
	Pd₆₇Ag₃₃合金气凝胶	甲酸、乙醇酸、H₂	[73]
	NiCu/NF	甲酸盐、H₂	[74]
	NiCo₂O₄、SnO₂	甲酸、H₂	[75]
氢解	Ru-PNN配合物	TPA、EG	[76]
	膦-二胺配体的Ru配合物	TPA、EG	[77]
	基于氮杂环卡宾的钳形锰催化剂	TPA、EG	[78]
	CoMo@NC	TPA、EG	[79]

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退役PET高值回用的研究进展

Advances in upcycling of post-consumer PET

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