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Characterization of tars from recycling of PHA bioplastic and synthetic plastics using fast pyrolysis

2022-10-05Artigo científico Acesso aberto
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dc.contributor.authorAkgül, Alican
dc.contributor.authorPalmeiro-Sanchez, Tania
dc.contributor.authorLange, Heiko
dc.contributor.authorMagalhães, Duarte
dc.contributor.authorMoore, Sean
dc.contributor.authorPaiva, Alexandre
dc.contributor.authorKazanç, Feyza
dc.contributor.authorTrubetskaya, Anna
dc.contributor.institutionDQ - Departamento de Química
dc.contributor.pblElsevier
dc.date.accessioned2023-03-15T22:32:49Z
dc.date.available2023-03-15T22:32:49Z
dc.date.issued2022-10-05
dc.descriptionFunding Information: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Anna Trubetskaya reports financial support was provided by YERUN Young European Research Universities. Feyza Kazanc reports equipment, drugs, or supplies was provided by Composite Material Characterization Laboratory, METU. Publisher Copyright: © 2022 The Authors
dc.description.abstractThe aim of this study was to investigate the pyrolysis products of polyhydroxyalkanoates (PHAs), polyethylene terephthalate (PET), carbon fiber reinforced composite (CFRC), and block co-polymers (PS-b-P2VP and PS-b-P4VP). The studied PHA samples were produced at temperatures of 15 and 50 oC (PHA15 and PHA50), and commercially obtained from GlasPort Bio (PHAc). Initially, PHA samples were analyzed by nuclear magnetic resonance (NMR) spectroscopy and size exclusion chromatography (SEC) to determine the molecular weight, and structure of the polymers. Thermal techniques such as thermogravimetry (TG) and differential scanning calorimetry (DSC) analyses were performed for PHA, CFRC, and block co-polymers to investigate the degradation temperature range and thermal stability of samples. Fast pyrolysis (500 oC, ∼102 °C s−1) experiments were conducted for all samples in a wire mesh reactor to investigate tar products and char yields. The tar compositions were investigated by gas chromatography–mass spectrometry (GC–MS), and statistical modeling was performed. The char yields of block co-polymers and PHA samples (<2 wt. %) were unequivocally less than that of the PET sample (~10.7 wt. %). All PHA compounds contained a large fraction of ethyl cyclopropane carboxylate (~ 38–58 %), whereas PAH15 and PHA50 additionally showed a large quantity of 2-butenoic acid (~8–12 %). The PHAc sample indicated the presence of considerably high amount of methyl ester (~15 %), butyl citrate (~12.9 %), and tributyl ester (~17 %). The compositional analyses of the liquid fraction of the PET and block co-polymers have shown carcinogenic and toxic properties. Pyrolysis removed matrices in the CRFC composites which is an indication of potential recovery of the original fibers.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent12
dc.format.extent5818209
dc.identifier.doi10.1016/j.jhazmat.2022.129696
dc.identifier.issn0304-3894
dc.identifier.otherPURE: 55837868
dc.identifier.otherPURE UUID: 5acd2dd0-c0b7-4422-b5bd-ee5b7fc4e4c8
dc.identifier.otherScopus: 85136256901
dc.identifier.otherPubMed: 36104917
dc.identifier.otherWOS: 000835658600001
dc.identifier.urihttp://hdl.handle.net/10362/150637
dc.identifier.urlhttps://www.scopus.com/pages/publications/85136256901
dc.language.isoeng
dc.peerreviewedyes
dc.subjectBlock co-polymers
dc.subjectCarbon fiber reinforced composites (CFRC)
dc.subjectFast pyrolysis
dc.subjectPolyethylene terephthalate (PET)
dc.subjectPolyhydroxyalkanoate (PHA)
dc.subjectRecycling
dc.subjectEnvironmental Engineering
dc.subjectEnvironmental Chemistry
dc.subjectWaste Management and Disposal
dc.subjectPollution
dc.subjectHealth, Toxicology and Mutagenesis
dc.titleCharacterization of tars from recycling of PHA bioplastic and synthetic plastics using fast pyrolysisen
dc.typejournal article
degois.publication.titleJournal of Hazardous Materials
degois.publication.volume439
dspace.entity.typePublication
rcaap.rightsopenAccess

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