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Investigating waste plastic pyrolysis kinetic parameters by genetic algorithm coupled with thermogravimetric analysis

Pan, Ruming and Duque, João Vitor F. and Debenest, Gérald Investigating waste plastic pyrolysis kinetic parameters by genetic algorithm coupled with thermogravimetric analysis. (2021) Waste and Biomass Valorization, 12. 2623-2637. ISSN 1877-2641

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Official URL: https://doi.org/10.1007/s12649-020-01181-4

Abstract

Pyrolysis of waste plastic (WP) is a promising method to solve the plastic pollution issue. WP is mainly composed of polyethylene (PE). Moreover, the products of waste polyethylene (WPE) pyrolysis could serve as high quality fuels and the feedstocks of petrochemicals. Therefore, it is essential to investigate the WPE and WP pyrolysis process. This study evaluates pure PE, WPE and WP pyrolysis kinetic parameters by the use of genetic algorithm (GA) and isoconversional methods coupled with thermogravimetric analysis (TGA), respectively. Additionally, three representative reaction models, i.e. reaction-order, extended Prout–Tompkins and Sestak–Berggren models, are investigated for obtaining the most suitable model, which could describe the PE, WPE and WP pyrolysis process more accurately. Consequently, the reaction-order model turns out to be the optimal method for appropriately describing PE, WPE and WP pyrolysis processes. Hence, the pyrolysis parameters optimized by GA are proven to be accurate and reliable, in comparison of calculated values of activation energy by isoconversional methods and experimental data. Moreover, it might be applicable of GA coupled with TGA with reaction-order model to the future industrial WPE and WP pyrolysis circumstances that have variable heating rates

Item Type:Article
HAL Id:hal-03292011
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Instituto Federal do Espírito Santo - IFES (BRAZIL)
Other partners > Universidade Federal do Espírito Santo - UFES (BRAZIL)
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Deposited On:19 Jul 2021 08:04

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