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Papers
20 resultsShowing papers similar to Co-gasification of Waste Biomass and Plastic for Syngas Production with CO2 Capture and Utilization: Thermodynamic Investigation
ClearFeasibility of gasifying mixed plastic waste for hydrogen production and carbon capture and storage
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.
Plastic regulates its co-pyrolysis process with biomass: Influencing factors, model calculations, and mechanisms
Researchers investigated co-pyrolysis of plastics and biomass, finding that varying the hydrogen-to-carbon ratio of biomass feedstocks influences synergistic effects on bio-oil quality, offering a strategy to improve plastic waste valorization.
Parametric Modelling Study to Determine the Feasibility of the Co-Gasification of Macroalgae and Plastics for the Production of Hydrogen-Rich Syngas
Researchers developed a parametric model to simulate the co-gasification of macroalgae species (Chlorella vulgaris, Sargassum fluitans, Sargassum natans) with plastics for hydrogen-rich syngas production. The study evaluated the feasibility of this dual-waste approach as an energy recovery strategy, examining the effects of gasification parameters on syngas composition and yield.
Recovery of gaseous fuels through CO2-mediated pyrolysis of thermosetting polymer waste
This study examined CO2-assisted pyrolysis as a method to recover gaseous fuels from mixed plastic waste, testing how CO2 atmosphere affects product yields and composition. The approach offers a potential chemical recycling route that reduces reliance on fossil fuel feedstocks.
Co-Pyrolysis of Plastic Waste and Lignin: A Pathway for Enhanced Hydrocarbon Recovery
Researchers investigated co-pyrolysis of plastic waste (polypropylene, polyethylene) with lignin biomass at various ratios and temperatures to recover valuable hydrocarbons. They found that mixing plastics with lignin enhanced the recovery of higher-value chemical products, with the best results at 600 degrees Celsius using polyethylene-lignin mixtures. The study demonstrates a pathway for converting both plastic and biomass waste into useful chemical feedstocks, potentially reducing plastic pollution.
Recent Progresses in Pyrolysis of Plastic Packaging Wastes and Biomass Materials for Conversion of High-Value Carbons: A Review
This review examines pyrolysis of plastic packaging waste and biomass materials as routes to fuel and chemical recovery, comparing process conditions, product yields, and co-pyrolysis synergies. The authors find that blending plastics with biomass can improve fuel quality and reduce char formation, advancing the case for mixed-feedstock pyrolysis systems.
Perspectives on Thermochemical Recycling of End-of-Life Plastic Wastes to Alternative Fuels
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.
Hydrothermal carbonization of plastic waste: A review of its potential in alternative energy applications
Researchers reviewed how hydrothermal carbonization — a process that converts materials into a coal-like substance using heat and water under pressure — can transform plastic waste into useful products like solid fuels, catalysts, and materials for energy storage devices. While the technology is promising, challenges like variable plastic feedstock quality and scaling up production must be addressed before widespread commercial use.
Mixed Plastic Waste Gasification in a Large Pilot-Scale Fluidized Bed Reactor Operated with Oxygen-Enriched Air and Steam
Researchers tested gasification of mixed plastic waste in a large pilot-scale reactor using oxygen-enriched air and steam to convert hard-to-recycle plastics into useful synthesis gas. They found that the process could effectively handle the heterogeneous mixtures that mechanical recycling typically cannot. The study presents chemical recycling through gasification as a viable strategy for reducing plastic waste that would otherwise contribute to environmental microplastic pollution.
A Review on Biofuels and Chemicals Production by Co-pyrolysis of Solid Biomass Feedstocks and Non-degradable Plastics
This review examines co-pyrolysis processes that convert mixtures of plastic waste and solid biomass into fuels and chemical products. Co-pyrolysis offers a way to valorize plastic waste that would otherwise break down into microplastics in the environment, while also producing usable energy.
Process simulation of co-HTC of sewage sludge and food waste digestates and supercritical water gasification of aqueous effluent integrated with biogas plants
Researchers modeled a system that combines wet waste from sewage sludge and food scraps into a biorefinery process, using hydrothermal carbonization (heating waste under pressure) followed by supercritical water gasification to recover nutrients and generate surplus energy, potentially transforming biogas plants into multi-product facilities.
Methodology for integrating lumped kinetic models and decision-making frameworks to enhance sustainability of plastic waste pyrolysis
Researchers developed a multi-scale methodology linking laboratory pyrolysis kinetics to high-level sustainability decision-making, demonstrating that using pyrolysis gas for heat supply maximizes circularity while selling LPG byproducts yields the highest profit, offering a replicable framework for evaluating plastic waste conversion options.
Insights into hydro thermal gasification process of microplastic polyethylene via reactive molecular dynamics simulations
Researchers used molecular dynamics simulations to study the hydrothermal gasification process of polyethylene microplastics. The study found that temperature and water content significantly affect carbon conversion efficiency and product distribution, providing insights that could help optimize this technology for converting microplastic waste into useful syngas.
Chemical Recycling of Plastic Waste: Comparative Evaluation of Environmental and Economic Performances of Gasification- and Incineration-based Treatment for Lightweight Packaging Waste
Chemical recycling of lightweight plastic packaging waste via gasification was compared to incineration with energy recovery using life cycle assessment and economic analysis, finding that gasification offered some environmental advantages but at higher cost and with significant technology readiness uncertainties. The study provides a comparative evaluation to inform decisions about complementary roles for chemical and mechanical recycling in plastic waste management.
Synergistic effects of CO2 on complete thermal degradation of plastic waste mixture through a catalytic pyrolysis platform: A case study of disposable diaper
Researchers developed a catalytic pyrolysis platform using CO2 to completely decompose heterogeneous plastic waste mixtures, demonstrating complete thermal degradation of disposable diaper components into syngas without releasing toxic residues or microplastics.
Enhancing sustainable waste management: Hydrothermal carbonization of polyethylene terephthalate and polystyrene plastics for energy recovery
Researchers applied hydrothermal carbonization to PET and polystyrene plastics and found PET produces higher-energy hydrochar with better energy densification (1.37 vs. 1.13) than polystyrene, identifying key structural transformations that determine each material's potential for energy recovery from plastic waste.
Thermochemical and chemo-biological molecular recycling of plastic waste and plastic-biomass waste mixtures: an updated review
This review covers thermochemical and chemo-biological approaches to recycling plastic waste and plastic-biomass waste mixtures into valuable building block molecules. The study highlights that while thermochemical and bioprocessing methods show promise, the chemo-enzymatic treatment of mixed plastic-biomass waste streams remains an open challenge due to their diverse composition.
Thermal and catalytic pyrolysis of a real mixture of post-consumer plastic waste: An analysis of the gasoline-range product
Researchers performed thermal and catalytic pyrolysis on real post-consumer plastic waste mixtures using various catalysts, finding that polymer type strongly influenced gas, liquid, and char yields, and that zeolite catalysts produced gasoline-range hydrocarbon liquids with commercially viable compositions from mixed plastic feedstocks.
Synergistic Effects and Mechanistic Insights into the Co-Hydropyrolysis of Chilean Oak and Polyethylene: Unlocking the Potential of Biomass–Plastic Valorisation
This paper is not about microplastics; it studies the co-pyrolysis of wood biomass and polyethylene plastics in a hydrogen atmosphere to produce cleaner bio-oil, investigating synergistic thermochemical reactions.
Mitigating Post-Recycling Plastic Waste Pollution Through Co-Hydrothermal Liquefaction with Freshwater Algal Biomass: Pathways to Biofuel and High-Value Products as Resource Recovery: Chi River, Thailand
Researchers co-processed post-recycling plastic waste with freshwater algal biomass via hydrothermal liquefaction at 350°C, finding that plastics act as hydrogen donors to improve biocrude yield and quality, with PET co-processing achieving 71.5% yield and Nylon-6 blends recovering valuable caprolactam monomers from the aqueous fraction.