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Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis
The epidemic of Corona Virus Disease 2019 (COVID-19) has led to the generation of a large number of waste surgical masks. In recent years, pyrolysis is considered to be an environmental-friendly and efficient method to dispose such solid waste. In this work, the thermal degradation behaviors, kineti...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Ltd.
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8579748/ http://dx.doi.org/10.1016/j.tsep.2021.101135 |
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author | Sun, Sijia Yuan, Yougen Chen, Ruiyu Xu, Xiaokang Zhang, Deyuan |
author_facet | Sun, Sijia Yuan, Yougen Chen, Ruiyu Xu, Xiaokang Zhang, Deyuan |
author_sort | Sun, Sijia |
collection | PubMed |
description | The epidemic of Corona Virus Disease 2019 (COVID-19) has led to the generation of a large number of waste surgical masks. In recent years, pyrolysis is considered to be an environmental-friendly and efficient method to dispose such solid waste. In this work, the thermal degradation behaviors, kinetic parameters, thermodynamic parameters, pyrolytic products and chemical reactions of typical surgical face mask waste were studied using thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR)-mass spectrometry (MS) analysis in inert atmosphere. It is concluded that the surgical face mask waste pyrolysis in nitrogen can be considered to be a one-step reaction. In addition, the mean E (activation energy) value and the mean A (pre-exponential factor) value are 237.19 kJ/mol and 1.36 × 10(14) min(−1), respectively. g(α) = (−ln(1-α))(2/3) (reaction model) may be utilized to characterize the surgical face mask waste pyrolysis in nitrogen. The above kinetic parameters are capable to estimate the surgical face mask waste pyrolysis behaviors in nitrogen. Thermodynamic parameters suggest that the surgical face mask waste pyrolysis can be considered to be an endothermic and non-spontaneous reaction. Inorganic substances, alkanes, alkenes, naphthenic hydrocarbons, aldehydes and ketones are the major volatile products. The amount of the aliphatic compounds is the highest. Specific chemical reactions generating these volatile products are proposed. |
format | Online Article Text |
id | pubmed-8579748 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Elsevier Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-85797482021-11-12 Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis Sun, Sijia Yuan, Yougen Chen, Ruiyu Xu, Xiaokang Zhang, Deyuan Thermal Science and Engineering Progress Article The epidemic of Corona Virus Disease 2019 (COVID-19) has led to the generation of a large number of waste surgical masks. In recent years, pyrolysis is considered to be an environmental-friendly and efficient method to dispose such solid waste. In this work, the thermal degradation behaviors, kinetic parameters, thermodynamic parameters, pyrolytic products and chemical reactions of typical surgical face mask waste were studied using thermogravimetric analysis (TGA) and Fourier transform infrared (FTIR)-mass spectrometry (MS) analysis in inert atmosphere. It is concluded that the surgical face mask waste pyrolysis in nitrogen can be considered to be a one-step reaction. In addition, the mean E (activation energy) value and the mean A (pre-exponential factor) value are 237.19 kJ/mol and 1.36 × 10(14) min(−1), respectively. g(α) = (−ln(1-α))(2/3) (reaction model) may be utilized to characterize the surgical face mask waste pyrolysis in nitrogen. The above kinetic parameters are capable to estimate the surgical face mask waste pyrolysis behaviors in nitrogen. Thermodynamic parameters suggest that the surgical face mask waste pyrolysis can be considered to be an endothermic and non-spontaneous reaction. Inorganic substances, alkanes, alkenes, naphthenic hydrocarbons, aldehydes and ketones are the major volatile products. The amount of the aliphatic compounds is the highest. Specific chemical reactions generating these volatile products are proposed. Elsevier Ltd. 2021-12-01 2021-11-10 /pmc/articles/PMC8579748/ http://dx.doi.org/10.1016/j.tsep.2021.101135 Text en © 2021 Elsevier Ltd. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Sun, Sijia Yuan, Yougen Chen, Ruiyu Xu, Xiaokang Zhang, Deyuan Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
title | Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
title_full | Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
title_fullStr | Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
title_full_unstemmed | Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
title_short | Kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
title_sort | kinetic, thermodynamic and chemical reaction analyses of typical surgical face mask waste pyrolysis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8579748/ http://dx.doi.org/10.1016/j.tsep.2021.101135 |
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