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Plastic Waste Valorization: Prospects for Green Hydrogen Production
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This review assesses the feasibility of producing green hydrogen from plastic waste through pyrolysis and gasification, comparing process efficiency, costs, and carbon emissions across different plastic feedstocks. The authors identify polyolefins as particularly promising feedstocks and outline the technical and economic barriers to scaling these processes.
: Plastic waste is a current issue worldwide that is already negatively influencing and threatening the lives of human beings, with residual micro- and nanoplastics entering water and soil bodies inducing recalcitrant pollution and health issues. The proposed perspective has been aimed to provide an overview of the potential of plastic waste valorization to green hydrogen and carbonaceous nanostructures. The overall concept additionally includes the utilization of the generated carbonaceous nanostructures to design advanced functional materials in combination with the obtained green hydrogen from plastic waste in a number of batch-to-flow catalytic hydrogenations to close the circle of sustainable integrated valorization of plastic waste. The concept also includes insightful Life-Cycle Assessment (LCA) and techno-economic studies in order to select the most relevant lines from the sustainability and cost-competitive standpoints.
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Hydrogen production from waste plastics: Sustainable processes, recent advances, and emerging trends
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Researchers reviewed thermochemical, catalytic, and emerging electrochemical and photochemical routes for converting waste plastics into hydrogen, assessing each pathway's mechanistic efficiency, catalyst limitations, and techno-economic trade-offs as part of a broader case for plastic valorization within circular economy and clean energy goals.
Feasibility of gasifying mixed plastic waste for hydrogen production and carbon capture and storage
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A techno-economic analysis and life cycle assessment of gasifying mixed plastic waste for hydrogen production combined with carbon capture and storage found a minimum hydrogen selling price of US$2.26-2.94 per kg, competitive with fossil fuel hydrogen with carbon capture. The analysis supports plastic waste gasification as both an economically viable and climate-beneficial approach to addressing the plastic waste challenge.
Hydrogen from Waste Gasification
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This review examines how gasification technology can convert waste materials, including municipal solid waste, tires, and plastic waste, into hydrogen fuel. Researchers found that hydrogen production potential varies widely depending on the feedstock, ranging from 15 to 300 grams of hydrogen per kilogram of waste. The study highlights gasification as a promising pathway for producing renewable hydrogen, though supportive regulations are needed to bring the technology to market.
Conversion of Polyolefin Waste Into Fuels and Other Valuable Products by Hydrothermal Processing
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This research explored ways to convert plastic waste, including polyolefins like polyethylene and polypropylene, into usable fuels and other valuable products through hydrothermal processing. Finding efficient recycling pathways is critical given that only 9% of the 350 million tons of plastic waste generated annually is currently recycled.
Perspectives on Thermochemical Recycling of End-of-Life Plastic Wastes to Alternative Fuels
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This review examined thermochemical recycling technologies including pyrolysis, liquefaction, and gasification for converting plastic waste into clean fuels, discussing operating principles, barriers, and the potential for co-processing plastics with biomass.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.