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Papers
20 resultsShowing papers similar to Comprehensive Assessment of Thermochemical Processes for Sustainable Waste Management and Resource Recovery
ClearPerspectives 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.
Comparative Assessment of Thermo-Syngas Fermentative and Liquefaction Technologies as Waste Plastics Repurposing Strategies
This study compared thermo-syngas fermentation and hydrothermal liquefaction as technologies for converting waste plastics into liquid transportation fuels. Both approaches could divert plastic waste from the environment while producing usable energy, though they differ in efficiency and economic viability.
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.
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.
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.
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.
Beyond Mechanical Recycling: Giving New Life to Plastic Waste
This review examines chemical recycling processes — including pyrolysis, solvolysis, and gasification — as alternatives to mechanical recycling for plastic waste, comparing their technical readiness, environmental performance via life-cycle analysis, and commercial development status.
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.
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.
Are Reliable and Emerging Technologies Available for Plastic Recycling in a Circular Economy?
This review examines the current landscape of plastic recycling technologies -- including mechanical, thermal, chemical, and biological depolymerization methods such as pyrolysis -- evaluating their readiness for circular economy integration. It concludes that while recycling rates remain below 10% globally, emerging technologies offer pathways toward closed-loop plastic supply chains, though full-scale implementation requires further development and performance assessment.
Reimagining plastics waste as energy solutions: challenges and opportunities
This review examines the potential of converting plastic waste into energy through waste-to-energy and waste-to-fuel technologies, particularly in developing nations where recycling infrastructure is limited. Researchers assessed various conversion methods including pyrolysis and gasification, evaluating their efficiency and environmental trade-offs. The study emphasizes that energy recovery from plastic waste could help address both the growing plastic pollution crisis and energy needs in underserved regions.
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.
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.
Emerging Technologies for Waste Plastic Treatment
This review surveyed emerging technologies for waste plastic treatment including chemical recycling, pyrolysis, biodegradation, and catalytic conversion, evaluating their potential to address the growing plastic pollution crisis more effectively than conventional methods.
Harvesting marine plastic pollutants-derived renewable energy: A comprehensive review on applied energy and sustainable approach.
This review summarized recent research on recovering renewable energy from marine plastic waste through biological, chemical, and thermal conversion processes, evaluating each pathway's carbon efficiency, global warming potential, and economic viability as part of a circular economy approach to plastic pollution.
An Overview of the Non-Energetic Valorization Possibilities of Plastic Waste via Thermochemical Processes
This review surveys non-energetic valorization options for plastic waste through chemical recycling, covering solvolysis, enzymatic depolymerization, and catalytic cracking pathways that recover monomers or chemical feedstocks. The authors compare process maturity and economic viability, identifying PET and nylon depolymerization as the most commercially advanced chemical recycling routes.
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.
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.
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.
Hydrothermal liquefaction of plastics: a survey of the effect of reaction conditions on the reaction efficiency
This review summarizes how hydrothermal liquefaction, a process that uses hot pressurized water, can be used to chemically recycle waste plastics. Researchers examined how different reaction conditions affect the efficiency of breaking down plastics into useful products. The study suggests that this technique holds promise as a practical approach to addressing the global plastic waste crisis.