Co-pyrolytic mechanisms, kinetics, emissions and products of biomass and sewage sludge in N-2, CO2 and mixed atmospheres

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dc.authorid0000-0001-6841-6457en_US
dc.authorid0000-0001-5555-7509en_US
dc.authorid0000-0003-1099-4363en_US
dc.contributor.authorChen, Jiacong
dc.contributor.authorZhang, Junhui
dc.contributor.authorLiu, Jingyong
dc.contributor.authorHe, Yao
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorBüyükada, Musa
dc.contributor.authorXie, Wuming
dc.date.accessioned2021-06-23T19:53:54Z
dc.date.available2021-06-23T19:53:54Z
dc.date.issued2020
dc.departmentBAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractThe co-pyrolysis technology of the second-generation feedstocks has both engineering and environmental advantages towards resource recovery, waste stream reduction, and energy generation. However, there exists a large knowledge gap about the co-pyrolytic mechanisms, kinetics, emissions and products of biomass wastes. This study aimed to quantify the co-pyrolytic interactions between the five (N-2, CO2, and three mixed) atmospheres and the two feedstocks of sewage sludge (SS) and coffee grounds (CG) as well as their emissions and products. Thermogravimetric-Fourier transform infrared spectrometry, two-dimensional correlation spectroscopy and pyrolysis-gas chromatography/mass spectrometry analyses were combined. An eight-parallel distributed activation energy model was adopted to elucidate the dynamic reaction mechanisms in the co-pyrolytic atmospheres. The co-pyrolytic interaction changed the maximum weight loss rate of the first peak by -2.5 to 38.6% and -1.9 to 36.9% in the N-2 and CO2 atmospheres, respectively. The mass loss rate peak in the first stage was higher in the N-2 than CO2 and mixed atmospheres, while the peak temperature of the maximum mass loss rate in the second stage declined with the elevated CO2 concentration. The replacement of N-2 with the different CO2 concentrations significantly increased the activation energies of the 5th and 7th pseudo-components. The temperature dependency of evolved gases was of the following order: ethers/esters -> acids/ketones/aldehydes/CO2 -> hydrocarbons in the N-2 atmosphere, and acids/ketones/aldehydes -> esters/ethers -> hydrocarbons in the CO2 atmosphere. The co-pyrolysis improved the yields of the hydrocarbon and phenol-type compounds and reduced the formations of the acid and nitrogenous compounds. Our results yielded valuable insights into a cleaner co-pyrolysis process.en_US
dc.identifier.doi10.1016/j.cej.2020.125372
dc.identifier.issn1385-8947
dc.identifier.issn1873-3212
dc.identifier.scopus2-s2.0-85084445971en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.cej.2020.125372
dc.identifier.urihttps://hdl.handle.net/20.500.12491/10326
dc.identifier.volume397en_US
dc.identifier.wosWOS:000552025300018en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorEvrendilek, Fatih
dc.institutionauthorBüyükada, Musa
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofChemical Engineering Journalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBiomassen_US
dc.subjectSludgeen_US
dc.subjectCo-pyrolysisen_US
dc.subject2D-TG-FTIR-COSen_US
dc.subjectM-DAEMen_US
dc.subjectPy-GC/MSen_US
dc.titleCo-pyrolytic mechanisms, kinetics, emissions and products of biomass and sewage sludge in N-2, CO2 and mixed atmospheresen_US
dc.typeArticleen_US

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