Pyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathways

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dc.authorid0000-0001-6841-6457en_US
dc.authorid0000-0003-1099-4363en_US
dc.contributor.authorDing, Ziyi
dc.contributor.authorChen, Huashan
dc.contributor.authorLiu, Jingyong
dc.contributor.authorCai, Haiming
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorBüyükada, Musa
dc.date.accessioned2021-06-23T19:55:05Z
dc.date.available2021-06-23T19:55:05Z
dc.date.issued2021
dc.departmentBAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractThe public has started to increasingly scrutinize the proper disposal and treatment of rapidly growing medical wastes, in particular, given the COVID-19 pandemic, raised awareness, and the advances in the health sector. This research aimed to characterize pyrolysis drivers, behaviors, products, reaction mechanisms, and pathways via TG-FTIR and Py-GC/MS analyses as a function of the two medical plastic wastes of syringes (SY) and medical bottles (MB), conversion degree, degradation stage, and the four heating rates (5,10, 20, and 40 degrees C/min). SY and MB pyrolysis ranged from 394.4 to 501 and from 417.9 to 517 degrees C, respectively. The average activation energy was 246.5 and 268.51 kJ/mol for the SY and MB devolatilization, respectively. MB appeared to exhibit a better pyrolysis performance with a higher degradation rate and less residues. The most suitable reaction mechanisms belonged to a geometrical contraction model (R-2) for the SY pyrolysis and to a nucleation growth model (A(1.2)) for the MB pyrolysis. The main evolved gases were C-4-C-24 alkenes and dienes for SY and C-6-C-41 alkanes and C-8 -C-41 alkenes for MB. The pyrolysis dynamics and reaction pathways of the medical plastic wastes have important implications for waste stream reduction, pollution control, and reactor optimization.en_US
dc.identifier.doi10.1016/j.jhazmat.2020.123472
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.pmid32731115en_US
dc.identifier.scopus2-s2.0-85088539927en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jhazmat.2020.123472
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10724
dc.identifier.volume402en_US
dc.identifier.wosWOS:000593837900010en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorEvrendilek, Fatih
dc.institutionauthorBüyükada, Musa
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal Of Hazardous Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMedical Plastic Wastesen_US
dc.subjectPyrolysisen_US
dc.subjectProduct Distributionen_US
dc.subjectTG-FTIRen_US
dc.subjectPy-GC/MSen_US
dc.titlePyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathwaysen_US
dc.typeArticleen_US

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