Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling
Abstract The surge in global plastic production, reaching 400.3 million tons in 2022, has exacerbated environmental pollution, with only 11% of plastic being recycled. Catalytic recycling, particularly through hydrogenolysis and hydrocracking, offers a promising avenue for upcycling polyolefin plast...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-54495-5 |
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| author | Taeeun Kwon Byeongchan Ahn Ki Hyuk Kang Wangyun Won Insoo Ro |
| author_facet | Taeeun Kwon Byeongchan Ahn Ki Hyuk Kang Wangyun Won Insoo Ro |
| author_sort | Taeeun Kwon |
| collection | DOAJ |
| description | Abstract The surge in global plastic production, reaching 400.3 million tons in 2022, has exacerbated environmental pollution, with only 11% of plastic being recycled. Catalytic recycling, particularly through hydrogenolysis and hydrocracking, offers a promising avenue for upcycling polyolefin plastic, comprising 55% of global plastic waste. This study investigates the influence of water on polyolefin depolymerization using Ru catalysts, revealing a promotional effect only when both metal and acid sites, particularly Brønsted acid site, are present. Findings highlight the impact of Ru content, metal-acid balance, and their proximity on this interaction, as well as their role in modulating the isomerization process, affecting product selectivity. Additionally, the interaction facilitates the suppression of coke formation, ultimately enhancing catalyst stability. A comprehensive techno-economic and life cycle assessment underscores the viability and environmental benefits of the process, particularly in the presence of water. These insights advance understanding and offer strategies for optimizing polyolefin plastic recycling processes. |
| format | Article |
| id | doaj-art-b371a83b6a20458ea6362bf8a4a9b33f |
| institution | DOAJ |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-b371a83b6a20458ea6362bf8a4a9b33f2025-08-20T02:49:16ZengNature PortfolioNature Communications2041-17232024-11-0115111510.1038/s41467-024-54495-5Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcyclingTaeeun Kwon0Byeongchan Ahn1Ki Hyuk Kang2Wangyun Won3Insoo Ro4Department of Chemical and Biomolecular Engineering, Seoul National, University of Science and TechnologyDepartment of Chemical and Biological Engineering, Korea UniversityChemical & Process Technology Division, Korea Research Institute of Chemical Technology (KRICT)Department of Chemical and Biological Engineering, Korea UniversityDepartment of Chemical and Biomolecular Engineering, Seoul National, University of Science and TechnologyAbstract The surge in global plastic production, reaching 400.3 million tons in 2022, has exacerbated environmental pollution, with only 11% of plastic being recycled. Catalytic recycling, particularly through hydrogenolysis and hydrocracking, offers a promising avenue for upcycling polyolefin plastic, comprising 55% of global plastic waste. This study investigates the influence of water on polyolefin depolymerization using Ru catalysts, revealing a promotional effect only when both metal and acid sites, particularly Brønsted acid site, are present. Findings highlight the impact of Ru content, metal-acid balance, and their proximity on this interaction, as well as their role in modulating the isomerization process, affecting product selectivity. Additionally, the interaction facilitates the suppression of coke formation, ultimately enhancing catalyst stability. A comprehensive techno-economic and life cycle assessment underscores the viability and environmental benefits of the process, particularly in the presence of water. These insights advance understanding and offer strategies for optimizing polyolefin plastic recycling processes.https://doi.org/10.1038/s41467-024-54495-5 |
| spellingShingle | Taeeun Kwon Byeongchan Ahn Ki Hyuk Kang Wangyun Won Insoo Ro Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling Nature Communications |
| title | Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling |
| title_full | Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling |
| title_fullStr | Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling |
| title_full_unstemmed | Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling |
| title_short | Unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling |
| title_sort | unraveling the role of water in mechanism changes for economically viable catalytic plastic upcycling |
| url | https://doi.org/10.1038/s41467-024-54495-5 |
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