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61,005 resultsShowing papers similar to Production of combustible fuels and carbon nanotubes from plastic wastes using an in-situ catalytic microwave pyrolysis process
ClearA 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.
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.
Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review
This review examines how pyrolysis of waste plastics coupled with steam reforming or catalytic processes can produce hydrogen gas and high-quality carbon nanotubes, covering different reactor designs and catalyst types. The work highlights waste plastics as a potentially valuable feedstock for generating both clean energy and advanced carbon materials.
Carbon nanotubes production from real-world waste plastics and the pyrolysis behaviour
Researchers produced carbon nanotubes from real-world waste plastics through pyrolysis, characterizing the thermal decomposition behavior of mixed plastic waste and demonstrating a valuable upcycling pathway for plastic pollution.
Liquid fuel production from catalytic pyrolysis of municipal plastic waste using synthesized Zeolite from Kaolin
This paper is not relevant to microplastics research — it evaluates a catalytic pyrolysis process using zeolite from kaolin to convert municipal plastic waste into liquid fuel as an alternative energy source.
Plastic Waste Recycling, Applications, and Future Prospects for a Sustainable Environment
This review examines emerging plastic waste recycling strategies including microwave, plasma, and supercritical water conversion, highlighting applications in construction, fuel production, and nanomaterials for a circular economy.
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.
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.
Chemical Recycling of Plastics by Microwave‐Assisted High‐Temperature Pyrolysis
Researchers developed a microwave-assisted high-temperature pyrolysis method that continuously breaks down mixed plastic waste and plant oil into useful chemicals like ethylene and propylene. This chemical recycling approach could help divert plastic waste from the environment while producing renewable building blocks for new materials.
Catalytic pyrolysis of mixed plastic wastes using commercial grade kaolin and Ukpor clay from Nigeria
Researchers used local clay materials from Nigeria as low-cost catalysts to convert mixed plastic waste into liquid fuel through pyrolysis. The study demonstrates that waste plastic can be transformed into usable fuel using affordable, locally available materials — a practical recycling approach for developing regions.
Plastic-derived substrate-grown carbon nanotubes as freestanding electrode for hydrogen evolution in alkaline media
Plastic waste was converted into carbon nanotubes via pyrolysis and used as a high-performance electrode for hydrogen production, demonstrating a circular economy pathway that transforms plastic pollution into a clean energy material.
Rapid activation of microplastics by microwave heating in an aqueous phase: A novel approach for enhanced plastic recycling
Microwave heating was used to rapidly activate microplastics by partial oxidation, enhancing their subsequent degradation in catalytic wet peroxide oxidation (CWPO) processes. Graphite particles and hydrogen peroxide during microwave treatment boosted MP reactivity, with aliphatic plastics activating more effectively than aromatic ones.
Upcycling Waste Plastics into Multi-Walled Carbon Nanotube Composites via NiCo2O4 Catalytic Pyrolysis
Researchers used catalytic pyrolysis — heating plastic waste with metal catalysts — to convert post-consumer plastics into carbon nanotube composites, a high-value industrial material. Bimetallic nickel-cobalt catalysts produced the best results. This approach could help valorize plastic waste while reducing the volumes that end up in the environment as microplastic pollution.
Recent developments in catalytic materials and reactors for the catalytic pyrolysis of plastic waste into hydrogen: a critical review with a focus on the circular economy
This review examines recent developments in catalytic materials and reactor designs for converting plastic waste into hydrogen through pyrolysis. The study discusses how catalyst-assisted pyrolysis can transform plastic waste into valuable hydrogen fuel, contributing to circular economy goals while addressing the growing plastic pollution problem.
Plastic pyrolysis over HZSM-5 zeolite and fluid catalytic cracking catalyst under ultra-fast heating
Researchers demonstrated that using induction heating — a fast, energy-efficient method — with catalysts can fully break down polyethylene and polypropylene plastics within 10 minutes, converting them into useful gases and liquid chemicals, offering a more economically viable recycling pathway than conventional plastic pyrolysis.
Acidic Site-Controlled ZSM-5 Catalysts for Fast Molten-Phase Pyrolysis of Plastic Waste with Tunable Product Distribution
Researchers synthesized ZSM-5 zeolite catalysts with tunable acidity for converting plastic waste into useful fuels through catalytic pyrolysis. The optimized catalyst achieved nearly 100% conversion of high-density polyethylene at 450 degrees Celsius in just 19 minutes, with controllable product distribution between oils and gases. The study provides insights for designing efficient catalysts that could help address both plastic waste accumulation and energy recovery.
Preparation of high quality carbon nanotubes by catalytic pyrolysis of waste plastics using FeNi-based catalyst
Researchers developed a method to produce high-quality carbon nanotubes from waste polyethylene plastics using iron-nickel catalysts. The study found that varying the catalyst composition affected nanotube quality and yield, demonstrating a promising approach for converting plastic waste into valuable nanomaterials rather than allowing it to persist as pollution.
Hydrocarbon Fractions from Thermolysis of Waste Plastics as Components of Engine Fuels
Researchers developed a thermolysis process to convert mixed plastic waste into liquid hydrocarbon fractions suitable for use as fuel additives. The process produced fuels with properties comparable to diesel components. Converting plastic waste into fuel is one approach to reducing the volume of plastic that ends up in the environment as microplastic pollution.
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.
Economic feasibility of catalytic cracking of polymer waste for fuel production
This study analyzed the economic feasibility of catalytic cracking of polyethylene and polypropylene plastic waste to produce liquid fuel, finding that the process can be cost-competitive under certain conditions. Converting plastic waste into fuel reduces the amount that degrades into microplastics in the environment while generating economic value.
Impact of Metal Impregnation of Commercial Zeolites in the Catalytic Pyrolysis of Real Mixture of Post-Consumer Plastic Waste
This study tested the catalytic pyrolysis of real mixed post-consumer plastic waste using metal-impregnated commercial zeolites, finding that metal loading significantly influenced product yields and selectivity toward fuel-range hydrocarbons.
Transformation of Single‐Use Plastics into Lighter Hydrocarbons via an Economical Coal Fly Ash based Zeolite Catalyst
This study is not directly about microplastics — it focuses on using coal fly ash-derived zeolite catalysts to break down single-use plastic waste (LDPE) into lighter hydrocarbons via pyrolysis, a chemical recycling approach.
Fuel cell and electrolyzer using plastic waste directly as fuel
Researchers demonstrated an electrochemical cell that converts solid plastic waste directly into electricity or hydrogen gas without incineration or gasification, using an acidic solution to dissolve polyurethane at 100–200 °C and oxidize it at a porous carbon anode.
From waste to energy - Photocatalytic anaerobic degradation of microplastics to generate hydrogen
Researchers demonstrated that microplastic particles can serve as solid hydrogen sources in anaerobic photocatalytic reactions using titanium dioxide as a catalyst. This proof-of-concept converts plastic waste into clean hydrogen fuel while potentially reducing environmental microplastic loads.