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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Van Geem, Kevin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Enhancing sustainable waste management : hydrothermal carbonization of polyethylene terephthalate and polystyrene plastics for energy recoverycitations
- 2024Evolution of low Z-elements in a Ni/MgFeAlO 4 catalyst during reaction : insight from in situ XRScitations
- 2024Effect of reactor alloy composition on coke formation during butane and ethane steam crackingcitations
- 2023Bayesian tuned kinetic Monte Carlo modeling of polystyrene pyrolysis : unraveling the pathways to its monomer, dimers, and trimers formationcitations
- 2023Bayesian tuned kinetic Monte Carlo modeling of polystyrene pyrolysis : unraveling the pathways to its monomer, dimers, and trimers formationcitations
- 2023Carburization of high-temperature alloys during steam cracking : the impact of alloy composition and temperaturecitations
- 2022Highly selective conversion of mixed polyolefins to valuable base chemicals using phosphorus-modified and steam-treated mesoporous HZSM-5 zeolite with minimal carbon footprintcitations
- 2022Quality evaluation and economic assessment of an improved mechanical recycling process for post-consumer flexible plasticscitations
- 2022Quality evaluation and economic assessment of an improved mechanical recycling process for post-consumer flexible plasticscitations
- 2022Review on the pyrolysis products and thermal decomposition mechanisms of polyurethanescitations
- 2022Study of the degradation of epoxy resins used in spacecraft components by thermogravimetry and fast pyrolysiscitations
- 2022Using analytical techniques to characterize the composition of post-consumer plastic packaging waste
- 2021Effect of phosphine on coke formation during steam cracking of propanecitations
- 2021Fast pyrolysis of polyurethanes and polyisocyanurate with and without flame retardant : compounds of interest for chemical recyclingcitations
- 2020Connecting polymer synthesis and chemical recycling on a chain-by-chain basis : a unified matrix-based kinetic Monte Carlo strategycitations
- 2020Catalytic effect of dimethyl disulfide on coke formation on high-temperature alloys : myth or reality?citations
- 2020Progress in reaction mechanisms and reactor technologies for thermochemical recycling of poly(methyl methacrylate)citations
- 2019Carbon capture and utilization in the steel industry : challenges and opportunities for chemical engineeringcitations
- 2019Carbon capture and utilization in the steel industry : challenges and opportunities for chemical engineeringcitations
Places of action
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article
Progress in reaction mechanisms and reactor technologies for thermochemical recycling of poly(methyl methacrylate)
Abstract
Chemical or feedstock recycling of poly(methyl methacrylate) (PMMA) by thermal degradation is an important societal challenge to enable polymer circularity. The annual PMMA world production capacity is over 2.4 x 10(6)tons, but currently only 3.0 x 10(4)tons are collected and recycled in Europe each year. Despite the rather simple chemical structure of MMA, a debate still exists on the possible PMMA degradation mechanisms and only basic batch and continuous reactor technologies have been developed, without significant knowledge of the decomposition chemistry or the multiphase nature of the reaction mixture. It is demonstrated in this review that it is essential to link PMMA thermochemical recycling with the PMMA synthesis as certain structural defects from the synthesis step are affecting the nature and relevance of the subsequent degradation reaction mechanisms. Here, random fission plays a key role, specifically for PMMA made by anionic polymerization. It is further highlighted that kinetic modeling tools are useful to further unravel the dominant PMMA degradation mechanisms. A novel distinction is made between global conversion or average chain length models, on the one hand, and elementary reaction step-based models on the other hand. It is put forward that only by the dedicated development of the latter models, the temporal evolution of degradation product spectra under specific chemical recycling conditions will become possible, making reactor design no longer an art but a science.