Pyrolytic kinetics, reaction mechanisms and products of waste tea via TG-FTIR and Py-GC/MS

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dc.authorid0000-0003-1099-4363en_US
dc.authorid0000-0001-6841-6457en_US
dc.contributor.authorCai, Haiming
dc.contributor.authorLiu, Jingyong
dc.contributor.authorXie, Wuming
dc.contributor.authorKuo, Jiahong
dc.contributor.authorBüyükada, Musa
dc.contributor.authorEvrendilek, Fatih
dc.date.accessioned2021-06-23T19:52:03Z
dc.date.available2021-06-23T19:52:03Z
dc.date.issued2019
dc.departmentBAİBÜ, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.description.abstractThe present study experimentally quantified the pyrolysis behaviors of waste tea (WT) as a function of four heating rates using thermogravimetric-Fourier transform infrared spectrometry and pyrolysis-gas chromatography-mass spectrometry analyses. The maximum weight loss of WT (66.79%) occurred at the main stage of devolatilization between 187.0 and 536.5 degrees C. The average activation energy estimates of three sub-stages of devolatilization were slightly higher (161.81, 193.19 and 224.99 kJ/mol, respectively) by the Flynn-Wall-Ozawa than Kissinger-Akahira-Sunose method. Kinetic reaction mechanisms predicted using the master-plots were f (alpha) = (3/2)(1 - alpha)(2/3)[1 - (1 - alpha)(1/3)](-1), f (alpha) = (1 - alpha)(2), and f (alpha) = (1 - alpha)(2.5) for the three sub-stages, respectively. The prominent volatiles of the WT pyrolysis were CO2 > C=O > phenol > CH4 > CO > NH3 > H2O > CO. A total of 33 organic compounds were identified including alkene, acid, benzene, furan, ketone, phenol, nitride, alcohol, aldehyde, alkyl, and ester. This study provides a theoretical and practical guideline to meeting the engineering challenges of introducing WT residues in the bioenergy sector.en_US
dc.identifier.doi10.1016/j.enconman.2019.01.031
dc.identifier.endpage447en_US
dc.identifier.issn0196-8904
dc.identifier.issn1879-2227
dc.identifier.scopus2-s2.0-85061027102en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage436en_US
dc.identifier.urihttps://doi.org/10.1016/j.enconman.2019.01.031
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10089
dc.identifier.volume184en_US
dc.identifier.wosWOS:000461728300035en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorBüyükada, Musa
dc.institutionauthorEvrendilek, Fatih
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofEnergy Conversion And Managementen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectWaste Teaen_US
dc.subjectPyrolysisen_US
dc.subjectKineticen_US
dc.subjectMaster-plotsen_US
dc.subjectTG-FTIRen_US
dc.subjectPy-GC/MSen_US
dc.titlePyrolytic kinetics, reaction mechanisms and products of waste tea via TG-FTIR and Py-GC/MSen_US
dc.typeArticleen_US

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