Chemical routes for recycling—dissolving, catalytic, and thermochemical technologies

Pohjakallio, Maija; Vuorinen, Tommi; Oasmaa, Anja

doi:10.1016/b978-0-12-817880-5.00013-x

Cited by 35 publications

(27 citation statements)

References 22 publications

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“…• Switch from fossil fuel-based plastics to renewable and bio-benign alternatives (Zheng and Suh, 2019). • Redesign problematic items (e.g., multi-layered packaging, plastic films) to make their recycling or composting economically and technically possible; • Improve technologies able to turn plastic waste into food-grade recycled pellets (Pohjakallio and Vuorinen, 2020).…”

Section: New Plastics Economy Global Commitment 12mentioning

confidence: 99%

Transnational Plastics: An Australian Case for Global Action

Galaiduk

Lebreton

Techera

et al. 2020

Front. Environ. Sci.

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Mitigating plastic pollution requires strong international cooperation because significant volumes of plastic waste are transported across jurisdictions both as waste exports and drifting ocean plastics (OP). Here we estimate which nations are (1) sources for overseas OP reaching Australian waters and (2) destinations receiving OP from Australian sources. We then provide actionable recommendations for mitigating plastic pollution in Australian waters and beyond. We estimated that the vast majority of overseas OP reaching Australia is from Indonesia, and that most of the Australian-sourced OP reaching overseas territories is entering New Zealand. Key actions for mitigating the OP issue in Australia include better governance, upgraded enforcement, and increased investments to reduce fossil fuel-based plastic production and to drastically improve both domestic and international waste management infrastructure and operations.

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Section: New Plastics Economy Global Commitment 12mentioning

confidence: 99%

Transnational Plastics: An Australian Case for Global Action

Galaiduk

Lebreton

Techera

et al. 2020

Front. Environ. Sci.

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“…In condensation polymers, for instance, polyesters and polyamides (PAs), the standard approach is to crack the ester or amide long chain. In contrast, in polyolefins (polyethylene and polypropylene), one has to break the relatively stable carbon chain [ 56 ].…”

Section: The Chemical Recycling Of Petmentioning

confidence: 99%

Strategic Possibility Routes of Recycled PET

2021

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The polyethylene terephthalate (PET) application has many challenges and potential due to its sustainability. The conventional PET degradation was developed for several technologies to get higher yield products of ethylene glycol, bis(2-hydroxyethyl terephthalate) and terephthalic acid. The chemical recycling of PET is reviewed, such as pyrolysis, hydrolysis, methanolysis, glycolysis, ionic-liquid, phase-transfer catalysis and combination of glycolysis–hydrolysis, glycolysis–methanolysis and methanolysis–hydrolysis. Furthermore, the reaction kinetics and reaction conditions were investigated both theoretically and experimentally. The recycling of PET is to solve environmental problems and find another source of raw material for petrochemical products and energy.

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“…It allows the recovery of long, high modules fibers, and because of that, it is one of the most widespread recycling processes. Many factors affect the pyrolysis procedure, including the composition of the waste feedstock, reactor type, and process parameters (heating rate, pressure, residence time, temperature) [ 35 , 36 ]. The operating temperatures have a remarkable effect on the fiber’s characteristics (mechanical, electrical, and surface properties) and thus, they need to be adjusted to the type of composites to be treated.…”

Section: Usual Recycling Proceduresmentioning

confidence: 99%

Recycling of Carbon Fiber-Reinforced Composites—Difficulties and Future Perspectives

Borjan

Knez

2021

Materials

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Carbon fiber-reinforced composites present an exciting combination of properties and offer clear advantages that make them a perfect replacement for a spread of materials. Consequently, in recent years, their production has dramatically increased as well as the quantity of waste materials. As future legislations are likely to prevent the use of landfills and incineration to dispose of composite waste, alternative solutions such as recycling are considered as one of the urgent problems to be settled. This study presents the leading technologies for recycling carbon fiber-reinforced composites, focusing on chemical recycling using sub- and supercritical fluids. These new reaction media have been demonstrated to be more manageable and efficient in recovering clean fibers with good mechanical properties. The conventional technologies of carbon fibers recycling have also been reviewed and described with both advantages and drawbacks.

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Chemical routes for recycling—dissolving, catalytic, and thermochemical technologies

Cited by 35 publications

References 22 publications

Transnational Plastics: An Australian Case for Global Action

Transnational Plastics: An Australian Case for Global Action

Strategic Possibility Routes of Recycled PET

Recycling of Carbon Fiber-Reinforced Composites—Difficulties and Future Perspectives

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