Researchers from South Korea have made a significant breakthrough in recycling polyolefins, which make up 55% of global plastic waste, by enhancing the catalytic conversion process using water and ruthenium (Ru)-based catalysts. Adding water dramatically improves conversion efficiency, reaching a 96.9% rate under optimal conditions, while reducing operational costs, extending catalyst lifespan, and minimizing environmental impact.
The study, published in Nature Communications recently highlights how water modifies reaction mechanisms, promoting pathways that increase catalytic activity and suppress harmful byproducts like coke. The Ru/zeolite-Y catalyst proved especially effective in converting polyolefins into valuable fuels such as gasoline and diesel, making the process economically and environmentally viable.
Techno-economic and life cycle analyses confirm the potential for industrial-scale implementation, offering a sustainable alternative to traditional plastic waste management. This approach not only reduces landfill and ocean pollution but also supports a circular economy by transforming plastic waste into useful resources.
The researchers envision future advancements that allow mixed plastic waste to be processed without pre-sorting, simplifying recycling and making it more cost-effective. They hope the technology will inspire policy changes, investment in advanced recycling infrastructure, and global collaboration to address the plastic waste crisis, paving the way for a cleaner and more sustainable future.
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