Upcycling of Waste Plastics into Value-Added Chemicals DOI Creative Commons
Xu Jin, Jing Zhang

Science for energy and environment., Год журнала: 2025, Номер unknown, С. 4 - 4

Опубликована: Март 27, 2025

Review Upcycling of Waste Plastics into Value-Added Chemicals Jin Xu and Jing Zhang * State Key Laboratory Chemical Engineering, East China University Science Technology, 130 Meilong Road, Shanghai 200237, Correspondence: [email protected] Received: 8 November 2024; Revised: 22 January 2025; Accepted: 24 March Published: 27 2025 Abstract: The rapid increase in plastic production has led to a severe waste crisis, driving the development various recycling technologies mitigate this growing issue. However, these often encounter substantial economic environmental challenges their implementation. An increasingly attractive alternative is chemical upcycling, which can transform plastics value-added chemicals. This review systematically examines upcycling applicable major commercial plastics, including polyethylene terephthalate (PET), polyolefins, polystyrene (PS), polyvinyl chloride (PVC). We focus on key strategies such as solvolysis, catalytic pyrolysis, hydrocracking hydrogenolysis, along with some emerging approaches electrocatalysis photooxidation, aiming summarize trends plastics.

Язык: Английский

Advancing Plastic Recycling: A Review on the Synthesis and Applications of Hierarchical Zeolites in Waste Plastic Hydrocracking DOI Open Access
Muhammad Usman Azam, Waheed Afzal, Inês Graça

и другие.

Catalysts, Год журнала: 2024, Номер 14(7), С. 450 - 450

Опубликована: Июль 12, 2024

The extensive use of plastics has led to a significant environmental threat due the generation waste plastic, which shown challenges during recycling. catalytic hydrocracking route, however, is viewed as key strategy manage this fossil-fuel-derived into plastic-derived fuels with lower carbon emissions. Despite numerous efforts identify an effective bi-functional catalyst, especially metal-loaded zeolites, high-performing zeolite for yet be synthesized. This microporous nature zeolite, results in diffusional limitations bulkier polymer molecules entering structure and reducing overall cracking plastic catalyst cycle time. These constraints can overcome by developing hierarchical zeolites that feature shorter diffusion paths larger pore sizes, facilitating movement bulky molecules. However, if modification process not controlled, it lead synthesis compromised functionality or structural integrity, resulting reduced conversion plastics. Therefore, we provide overview various methods synthesizing emphasizing advancements over past two decades innovative strategies introduce additional systems. objective review study approaches based on their effectiveness while clear link between optimized preparation structure-activity relationship used

Язык: Английский

Процитировано

8

Biowastes as Sustainable Catalysts for Water Treatment: A Comprehensive Overview DOI Creative Commons
Hirpha Adugna Areti, Abas Siraj Hamda, Lata Deso Abo

и другие.

Environmental Advances, Год журнала: 2025, Номер unknown, С. 100610 - 100610

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

1

Recent Advancements in Upcycling of Polyolefins by Hydrocracking: Effect of Various Heterogeneous Catalysts and Reaction Parameters DOI

Thangaraj Baskaran,

Yong-Kul Lee

Polymer Degradation and Stability, Год журнала: 2025, Номер unknown, С. 111220 - 111220

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

1

Improving hydrogen production via ex-situ catalytic fast pyrolysis of non-thermal plasma pretreated HDPE with 1Fe1Ni/γ-Al2O3 catalyst DOI
Jin Liu, Sijie Li, Ayyaz Mahmood

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125129 - 125129

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1

Investigating the Role of Acid Sites in the Hydrocracking of Polyethylene-EVOH Multilayer Film Waste over Pt/BEA Catalyst DOI

Christine M. Oberhausen,

Keira E. Auchenbach,

Dionisios G. Vlachos

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160869 - 160869

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1

Persulfate-Based Advanced Oxidation Reforming of Polyethylene Terephthalate Fiber into Formate via Singlet Oxygen Activation DOI
Luyao Zhang, Li Wang, J.T. Chen

и другие.

Advanced Fiber Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

Язык: Английский

Процитировано

1

Upcycling polyolefins to methane-free liquid fuel by a Ru1-ZrO2 catalyst DOI Creative Commons

Jicong Yan,

Guanna Li,

Zhanwu Lei

и другие.

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Март 21, 2025

Abstract Upcycling waste plastics into liquid fuels presents significant potential for advancing the circular economy but is hindered by poor selectivity and low-value methane byproduct formation. In this work, we report that atomic Ru-doped ZrO 2 can selectively convert 100 grams of post-consumer polyethylene polypropylene, yielding 85 mL in a solvent-free hydrocracking. The (C 5 -C 20 ) comprises ~70% jet-fuel-ranged branched hydrocarbons 8 16 ), while gas product liquefied-petroleum-gas 3 6 without ethane. We found Ru dopant Ru-O-Zr moiety functionalizes its neighboring O atom, originally inert, to create Brønsted acid site. This site, rather than itself, governs internal C−C bond cleavage polyolefins through carbonium ion mechanism, thereby enhancing yield suppressing oxide modulation strategy provides paradigm shift catalyst design hydrocracking holds broad spectrum applications.

Язык: Английский

Процитировано

1

Medium entropy metal oxide induced *OH species targeted transfer strategy for efficient polyethylene terephthalate plastic recycling DOI
Zijian Li, Zhaohui Yang,

Shao Wang

и другие.

Chemical Engineering Journal, Год журнала: 2023, Номер 479, С. 147611 - 147611

Опубликована: Ноя. 22, 2023

Язык: Английский

Процитировано

17

Catalytic Hydrodeoxygenation of Mixed Plastic Wastes into Sustainable Naphthenes DOI Creative Commons

Jieyi Liu,

Nan Wang, Sibao Liu

и другие.

JACS Au, Год журнала: 2024, Номер 4(11), С. 4361 - 4373

Опубликована: Окт. 11, 2024

The chemical upcycling of plastic wastes by converting them into valuable fuels and chemicals represents a sustainable approach as opposed to landfilling incineration. However, it encounters challenges in dealing with mixed due their complex composition sorting/cleaning costs. Here, we present one-pot hydrodeoxygenation (HDO) method for containing poly(ethylene terephthalate) (PET), polycarbonate (PC), poly(phenylene oxide) (PPO) naphthenes under mild reaction conditions. To facilitate this process, developed cost-effective, contaminant-tolerant, reusable Ni/HZSM-5 bifunctional catalyst through an ethylene glycol-assisted impregnation method. metallic Ni site plays pivotal role catalyzing C-O C-C cleavages well hydrogenation reactions, while the acidic HZSM-5 facilitates dehydration isomerization reactions. collaboration between metal acid dual sites on enabled efficient HDO wide range substrates, including bottles, textile fibers, pellets, sheets, CDs/DVDs, plastics without cleaning or pigments removal even various mixtures, high yield up 99% at 250 °C 4 MPa H

Язык: Английский

Процитировано

5

Ni-based catalysts supported on Hbeta zeolite for the hydrocracking of waste polyolefins DOI Creative Commons
Guoqing Zhang,

Qingguo Mao,

Yiqun Yue

и другие.

RSC Advances, Год журнала: 2024, Номер 14(23), С. 15856 - 15861

Опубликована: Янв. 1, 2024

High efficiency hydrocracking degradation of mixed polyolefin polymers is achieved under mild circumstances by Ni-based catalysts supported on Hbeta.

Язык: Английский

Процитировано

4