| Title | Effects of melt-state shear homogenization on catalytic pyrolysis of mixed plastic waste for feedstock recycling |
|---|---|
| ID_Doc | 23933 |
| Authors | Ahmadi, M; Zabihi, O; Nazarloo, HA; Shirvanimoghaddam, K; Duan, X; Adetunji, P; Egan, B; Naebe, M |
| Title | Effects of melt-state shear homogenization on catalytic pyrolysis of mixed plastic waste for feedstock recycling |
| Year | 2023 |
| Published | |
| Abstract | Although significant effort has been made to develop separation and sorting strategies for recycling mixed plastic waste in recent decades, these processes are often complex, time-consuming, and labor-intensive, and may not be efficient when scaled up. This research aims to evaluate the potential of a homogenization and dechlorination algorithm based on a remelting-restabilization technique to improve the homogeneity of heterogeneous mixed plastic waste through high-shear pulverization. The effec-tiveness of this method for chemical recycling in the presence of a synthesized clay catalyst was eval-uated and modeled using pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) and kinetic studies. The results showed a significant increase in the homogeneity level of mixed plastic in terms of physical, thermal, and rheological behavior after two runs of extrusions. Additionally, the amount of chlorine in the mixed waste samples was reduced from 18.3 mg/kg to 1.45 mg/kg after thermal treatment at 300 degrees C for 2 hours. The inclusion of a modified clay catalyst resulted in a reduction in activation energy and initial degradation temperature by approximately 13% and 31%, respectively. The modeled kinetics results showed that the reaction rate in the presence of the catalyst increased at both low and high conversions over a wide range of temperatures. However, an increase in the number of extrusions only increased the degradation rate at high temperatures due to induced thermal history. Py-GC-MS test results revealed that the use of clay catalyst in homogenized samples enhanced the amount of low carbon atom products (C5 to C12) by 7.5% and 27% at 450 degrees C and 550 degrees C, respectively. Furthermore, the amount of aromatic product increased after the inclusion of the clay catalyst for both pyrolysis tem-peratures, including 450 degrees C and 550 degrees C.(c) 2023 Elsevier Ltd. All rights reserved. |
Similar Articles
| ID | Score | Article |
|---|---|---|
22824
|
Dogu, O; Pelucchi, M; Van de Vijver, R; Van Steenberge, PHM; D'hooge, DR; Cuoci, A; Mehl, M; Frassoldati, A; Faravelli, T; Van Geem, KM The chemistry of chemical recycling of solid plastic waste via pyrolysis and gasification: State-of-the-art, challenges, and future directions(2021) | |
| 9689
|
Lindfors, C; Khan, M; Siddiq, F; Arnold, M; Ohra-aho, T Catalytic Processing of Mixed Plastics Aiming for Industrial Reuse(2024)Energy & Fuels, 38.0, 9 | |
| 10292
|
Soni, VK; Singh, G; Vijayan, BK; Chopra, A; Kapur, GS; Ramakumar, SSV Thermochemical Recycling of Waste Plastics by Pyrolysis: A Review(2021)Energy & Fuels, 35, 16 | |
| 15168
|
Shaker, M; Kumar, V; Saffron, CM; Rabnawaz, M Revolutionizing Plastics Chemical Recycling with Table Salt(2024)Advanced Sustainable Systems, 8, 1 | |
| 14484
|
Nabgan, W; Ikram, M; Alhassan, M; Owgi, AHK; Tran, TV; Parashuram, L; Nordin, AH; Djellabi, R; Jalil, AA; Medina, F; Nordin, ML Bibliometric analysis and an overview of the application of the non-precious materials for pyrolysis reaction of plastic waste(2023)Arabian Journal Of Chemistry, 16, 6 | |
| 16702
|
Zeller, M; Netsch, N; Richter, F; Leibold, H; Stapf, D Chemical Recycling of Mixed Plastic Wastes by Pyrolysis - Pilot Scale Investigations(2021)Chemie Ingenieur Technik, 93, 11 | |
| 19331
|
Kremer, I; Tomic, T; Katancic, Z; Erceg, M; Papuga, S; Vukovic, JP; Schneider, DR Catalytic pyrolysis of mechanically non-recyclable waste plastics mixture: Kinetics and pyrolysis in laboratory-scale reactor(2021) | |
| 23649
|
Laghezza, M; Fiore, S; Berruti, F A review on the pyrolytic conversion of plastic waste into fuels and chemicals(2024) | |
| 27860
|
Urciuolo, M; Migliaccio, R; Chirone, R; Bareschino, P; Mancusi, E; Pepe, F; Ruoppolo, G Thermal and Catalytic Pyrolysis of Real Plastic Solid Waste as a Sustainable Strategy for Circular Economy(2023)Combustion Science And Technology, 195.0, 14 | |
| 22658
|
Jablonska, B; Poznanska, G; Jablonski, P; Zwolinska, J Thermochemical Valorization of Plastic Waste Containing Low Density Polyethylene, Polyvinyl Chloride and Polyvinyl Butyral into Thermal and Fuel Energy(2024)Energies, 17.0, 14 |