Unlocking energy potential: Investigating thermal degradation and kinetic modeling of health-care waste polymers for enhanced pyrolysis conversion
Corresponding Author
Joana B. Lourenço
Chemical Engineering Department, Universidade Federal de São Paulo, São Paulo, Brazil
Correspondence
Joana B. Lourenço, Chemical Engineering Department, Unifesp—Unidade José Alencar, Rua São Nicolau, n° 210, Centro—CEP: 09913-030 São Paulo, SP, Brazil.
Email: [email protected]
Contribution: Conceptualization (equal), Data curation (equal), Formal analysis (equal), Funding acquisition (equal), Methodology (equal), Writing - original draft (equal)
Search for more papers by this authorDaniel A. Bertuol
Chemical Engineering Department, Universidade Federal de Santa Maria, Santa Maria, Brazil
Contribution: Conceptualization (equal), Funding acquisition (equal), Methodology (equal), Project administration (equal), Resources (equal), Supervision (equal), Writing - original draft (equal)
Search for more papers by this authorNina P. G. Salau
Chemical Engineering Department, Universidade Federal de Santa Maria, Santa Maria, Brazil
Contribution: Conceptualization (lead), Data curation (lead), Formal analysis (lead), Funding acquisition (equal), Investigation (lead), Methodology (lead), Project administration (lead), Resources (lead), Supervision (lead), Validation (lead), Visualization (lead), Writing - original draft (equal), Writing - review & editing (lead)
Search for more papers by this authorCorresponding Author
Joana B. Lourenço
Chemical Engineering Department, Universidade Federal de São Paulo, São Paulo, Brazil
Correspondence
Joana B. Lourenço, Chemical Engineering Department, Unifesp—Unidade José Alencar, Rua São Nicolau, n° 210, Centro—CEP: 09913-030 São Paulo, SP, Brazil.
Email: [email protected]
Contribution: Conceptualization (equal), Data curation (equal), Formal analysis (equal), Funding acquisition (equal), Methodology (equal), Writing - original draft (equal)
Search for more papers by this authorDaniel A. Bertuol
Chemical Engineering Department, Universidade Federal de Santa Maria, Santa Maria, Brazil
Contribution: Conceptualization (equal), Funding acquisition (equal), Methodology (equal), Project administration (equal), Resources (equal), Supervision (equal), Writing - original draft (equal)
Search for more papers by this authorNina P. G. Salau
Chemical Engineering Department, Universidade Federal de Santa Maria, Santa Maria, Brazil
Contribution: Conceptualization (lead), Data curation (lead), Formal analysis (lead), Funding acquisition (equal), Investigation (lead), Methodology (lead), Project administration (lead), Resources (lead), Supervision (lead), Validation (lead), Visualization (lead), Writing - original draft (equal), Writing - review & editing (lead)
Search for more papers by this authorAbstract
Recently, the main polymers present in the health-care waste (HCW) of a Brazilian university hospital were identified, revealing a composition of polypropylene (85%), high-density polyethylene (6%), polystyrene (5%), and cellulose (4%). Recognizing the potential for these materials to generate energy through pyrolysis, this study aimed to assess the thermal degradation of the HCW polymers and their respective polymer mixture using thermogravimetric analysis. Thermalgravimetric analysis encompassed three heating rates (5, 10, and 20°C min−1). The kinetic parameters of thermal degradation were estimated using the first-order reaction model. Friedman differential isoconversional method, as well as Ozawa, Flynn–Wall–Ozawa, and Kissinger–Akahira–Sunose integral isoconversional methods, were applied to obtain the kinetic parameters, which can predict the thermal degradation kinetics of the polymers in thermal conversion process. Through statistical evaluation of the parameter estimation, it was demonstrated that the proposed methodology yielded fitted models for the experimental data on HCW. These models may be implemented in designing pyrolysis reactors that convert these polymers into energy, thereby mitigating environmental pollution.
Open Research
DATA AVAILABILITY STATEMENT
The data that support the findings of this study are available from the corresponding author upon reasonable request.
Supporting Information
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| app54620-sup-0001-Supinfo.docxWord 2007 document , 1 MB | Data S1: Supplementary Information. |
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