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61,005 resultsShowing papers similar to A Review on Biofuels and Chemicals Production by Co-pyrolysis of Solid Biomass Feedstocks and Non-degradable Plastics
ClearRecent 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.
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.
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.
Assessment of Co-Pyrolysis of Polypropylene with Triacylglycerol-Based Waste Biomass to Obtain Sustainable Hydrocarbons
Despite its title referencing polypropylene co-pyrolysis, this paper studies the thermal breakdown of polypropylene plastic waste combined with biodiesel industry byproducts to produce renewable hydrocarbon fuels — not microplastic pollution. It examines chemical product yields from waste-to-fuel conversion, and is not relevant to microplastics or human health.
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.
Materials challenges and opportunities to address growing micro/nanoplastics pollution: a review of thermochemical upcycling
This review examined thermochemical upcycling technologies including pyrolysis, gasification, and liquefaction as approaches to valorize micro- and nanoplastic waste, assessing the material challenges and opportunities for converting environmental plastic pollution into useful fuels or chemical feedstocks.
Recovery of plastic waste through its thermochemical degradation: a review
This review examines pyrolysis as a promising technology for recovering valuable chemical compounds from plastic waste, which reached approximately 368 million tons of global production in 2020 alone. Researchers discuss how thermal and catalytic degradation can convert different types of thermoplastics into high-energy-value products. The study also highlights the environmental and health impacts of plastic accumulation, including the effects of microplastic consumption on human and animal health.
A Comprehensive Review on the Thermochemical Treatment of Plastic Waste to Produce High Value Products for Different Applications
This review summarizes methods for converting plastic waste into valuable products using high-temperature chemical processes like pyrolysis and plasma technology. These approaches can produce hydrogen fuel, carbon nanotubes, and other useful materials from plastic that would otherwise become pollution. Reducing plastic waste through better recycling technology is important because most microplastic pollution originates from improperly managed plastic products.
Microplastic Recovery and Conversion Pathways: The Most Recent Advancements in Technologies for the Generation of Renewable Energy
This review examines current technologies for recovering energy from microplastics, evaluating pyrolysis, gasification, electrochemical methods, and hybrid biomass-based approaches in terms of energy balance, carbon conversion, product composition, process efficiency, and scalability. The authors found pyrolysis to be the most scalable method, producing valuable oils and gases, but highlighted that all reviewed technologies face challenges handling the heterogeneous composition and small particle sizes characteristic of MP feedstocks.
Hybrid thermo-electrochemical conversion of plastic wastes commingled with marine biomass to value-added products using renewable energy
A hybrid thermo-electrochemical process was explored for converting marine plastic and biomass mixtures into useful energy products, addressing the challenge of plastics commingled with organic matter in ocean environments. The approach offers a potential pathway for valorizing hard-to-recycle marine waste streams.
Towards fuels production by a catalytic pyrolysis of a real mixture of post-consumer plastic waste
Researchers tested in-situ catalytic pyrolysis of a real mixed post-consumer plastic waste stream from mechanical-biological treatment facilities, producing a liquid fuel fraction with properties comparable to gasoline, kerosene, and diesel.
Pyrolysis as a value added method for plastic waste management: A review on converting LDPE and HDPE waste into fuel
This review examined pyrolysis as a method to convert low-density and high-density polyethylene plastic waste into fuel, summarizing process parameters, product yields, and fuel quality. Pyrolysis can transform otherwise unrecyclable plastic into diesel-like hydrocarbon fuels. The technology offers a potential solution for managing polyethylene waste while generating energy from materials that would otherwise persist in the environment.
Microplastic degradation as a sustainable concurrent approach for producing biofuel and obliterating hazardous environmental effects: A state-of-the-art review
This review explores approaches to degrading microplastics through thermal and biological methods, which could simultaneously reduce environmental pollution and produce usable biofuels. Researchers highlight how certain microorganisms and heat-based processes can break down microplastics into simpler compounds that can serve as energy sources. The study suggests these dual-purpose strategies could help address both the plastic pollution crisis and energy security challenges.
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.
Comprehensive Assessment of Thermochemical Processes for Sustainable Waste Management and Resource Recovery
This review evaluates thermochemical technologies such as pyrolysis, gasification, and liquefaction for converting waste materials, including plastics, into useful chemicals and fuels. Researchers compared the processes based on energy efficiency, product quality, and environmental impact. The study aims to guide the selection of the most appropriate waste-to-value technology for different materials as part of a circular economy approach.
Unraveling Co-Pyrolysis Mechanisms for Municipal Sludge and Microplastics: Thermodynamic, Kinetic, and Product Insights
Wastewater treatment plants produce large quantities of sewage sludge, which is often contaminated with microplastics from household and industrial sources. This study tested whether co-pyrolyzing sludge with polyethylene (HDPE) or PET plastic waste at high temperatures could improve energy recovery while processing microplastics. Adding 30% HDPE maximized the overall pyrolysis efficiency and changed the chemical reaction pathways, while PET had stronger facilitating effects at mid-range temperatures. The research suggests that co-pyrolysis could serve the dual purpose of sludge disposal and microplastic destruction, though the altered reaction kinetics and product mixtures require careful management.
Techno-Economic Review of Pyrolysis and Gasification Plants for Thermochemical Recovery of Plastic Waste and Economic Viability Assessment of Small-Scale Implementation
This review evaluates the technical and economic viability of pyrolysis and gasification for converting plastic waste into fuel, finding that small-scale implementation faces significant cost challenges. Converting plastic waste into fuel reduces the amount available to degrade into microplastics in the environment, but economic barriers limit widespread adoption.
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.
Pyrolysis as a value added method for plastic waste management: A review on converting LDPE and HDPE waste into fuel
This review focuses on pyrolysis as a method to convert waste LDPE and HDPE plastics into liquid fuel, summarizing reactor types, catalysts, and the factors influencing fuel yield and quality. While not about microplastics directly, it addresses the upstream problem of plastic waste accumulation — particularly the conversion of plastics that would otherwise persist in the environment and fragment into microplastics — into usable energy resources.
Perspectives on sustainable plastic treatment: A shift from linear to circular economy
This review examines emerging technologies for converting plastic waste into useful chemicals and fuels, including methods like pyrolysis, photocatalysis, and electrocatalysis. Researchers highlight how these approaches could shift plastic management from a throw-away model to a circular economy where waste becomes a resource. The study identifies remaining knowledge gaps and proposes future research directions for sustainable plastic treatment.
Synergistic co-pyrolysis of corn stover and refuse-derived fuel with microplastics: Kinetic and thermodynamic study
Researchers studied the co-pyrolysis of corn stover and refuse-derived fuel containing microplastics, analyzing the process through kinetic and thermodynamic methods. They found synergistic effects between biomass and plastic components that improved the thermal decomposition process. The study suggests that co-pyrolysis could be a viable approach for simultaneously managing agricultural waste and microplastic-containing refuse.
Recent Progress in Low-Cost Catalysts for Pyrolysis of Plastic Waste to Fuels
This review evaluated low-cost catalysts — including zeolites, clays, and bimetallic materials — for the pyrolytic conversion of plastic waste into fuel, comparing their effects on product yield and quality and highlighting promising candidates for scaling up plastic-to-fuel processes.
A State-of-the-Art Review on the Technological Advancements for the Sustainable Management of Plastic Waste in Consort with the Generation of Energy and Value-Added Chemicals
This review examined technological advances for converting plastic waste into energy and value-added chemicals, covering pyrolysis, gasification, and catalytic processes as sustainable alternatives to landfilling, given that global plastic waste generation reached approximately 380 million tonnes in 2022.