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Título : Pyrolysis of municipal solid waste: A kinetic study through multi-step reaction models
Autor : Marquez, Alejandro
Patlaka, Elpida
Sfakiotakis, Stelios
Ortiz, Isabel
Sanchez-Hervas, Jose Maria
Palabras clave : Waste valorization
Thermogravimetric Analysis
Py-GC/MS
Isoconversional methods
Independent parallel reaction
Pyrolysis
MSW
Fecha de publicación : dic-2023
Editorial : Elsevier
Citación : Alejandro Márquez, Elpida Patlaka, Stelios Sfakiotakis, Isabel Ortiz, José María Sánchez-Hervás, Pyrolysis of municipal solid waste: A kinetic study through multi-step reaction models, Waste Management, Volume 172, 2023, Pages 171-181, ISSN 0956-053X
Citación : Waste Management,;Volume 172, 2023, 171-181
Resumen : The present study endeavors to establish a comprehensive kinetic analysis of Municipal Solid Waste residue pyrolysis. As the sample exhibits four distinct degradation stages, it has been carried out by adopting a multi-step process behavior. Different approaches have been compared, including five isoconversional methods (Kissinger-Akahira-Sunose, Ozawa-Flynn-Wall, Starink, Friedman and Advanced integral Vyazovkin), Mathematical Deconvolution Analysis, and Independent Parallel Reaction Model. The study focuses on the two active pyrolysis steps, the first one corresponds to the biomass components between 150 and 400 °C, with the decomposition peak between 300 and 350 °C, whereas the second corresponds to the plastic fraction with temperature ranging between 400 and 520 °C. The activation energy values obtained from the different kinetic methods for both steps are estimated at 240 and 250 kJ/mol, respectively. It was observed that the biomass components degradation obeys a third-order kinetic model, while the plastic fraction follows a first-order kinetic model. The analytical pyrolysis of the two main stages allows for the identification and semi-quantification of the compounds produced during municipal solid waste pyrolysis. Through analytical pyrolysis, it has been determined that up to 64 % of hydrocarbons are produced, of which 24 % correspond to aromatic compounds. Meanwhile, 20 % of oxygenated compounds were obtained, with ketones, furans, and acids being the most predominant families
URI : https://doi.org/10.1016/j.wasman.2023.10.031
http://documenta.ciemat.es/handle/123456789/4065
ISSN : 0956-053X
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