Thermal behaviors, combustion mechanisms, evolved gasses, and ash analysis of spent potlining for a hazardous waste management

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dc.authorid0000-0001-6841-6457
dc.authorid0000-0002-4699-4595
dc.contributor.authorSun, Guang
dc.contributor.authorZhang, Gang
dc.contributor.authorLiu, Jingyong
dc.contributor.authorEvrendilek, Deniz Eren
dc.contributor.authorBüyükada, Musa
dc.date.accessioned2021-06-23T18:57:00Z
dc.date.available2021-06-23T18:57:00Z
dc.date.issued2021
dc.departmentBAİBÜ, Mühendislik Fakültesi, Kimya Mühendisliği Bölümüen_US
dc.description.abstractAn unavoidable but reusable waste so as to enhance a more circular waste utilization has been spent potlining (SPL) generated by the aluminum industry. The combustion mechanisms, evolved gasses, and ash properties of SPL were characterized dynamically in response to the elevated temperature and heating rates. Differential scanning calorimetric (DSC) results indicated an exothermic reaction behavior probably able to meet the energy needs of various industrial applications. The reaction mechanisms for the SPL combustion were best described using the 1.5-, 3- and 2.5-order reaction models. Fluoride volatilization rate of the flue gas was estimated at 2.24%. The SPL combustion emitted CO2, HNCO, NO, and NO2 but SOx. The joint optimization of remaining mass, derivative thermogravimetry, and derivative DSC was achieved with the optimal temperature and heating rate combination of 783.5 °C, and 5 °C/min, respectively. Interaction between temperature and heating rate exerted the strongest and weakest impact on DSC and remaining mass, respectively. The fluorine mainly as the formation of substantial NaF and CaF2 in the residual ash. Besides, the composition and effect of environment of residual solid were evaluated. The ash slagging tendency and its mineral deposition mechanisms were elucidated in terms of turning SPL waste into a benign input to a circular waste utilization.en_US
dc.description.sponsorshipTDQN2019006 2019507140211 National Natural Science Foundation of China, NSFC: 22006015, 51978175en_US
dc.description.sponsorshipThis work was supported by the National Natural Science Foundation of China (Nos. 51978175 , 22006015 ), the Social Science and Technology Development Project of Dongguan (No. 2019507140211 ), and the Scientific Research Youth Team of Dongguan University of Technology (No. TDQN2019006 ).en_US
dc.identifier.doi10.1016/j.jes.2021.02.003
dc.identifier.endpage137en_US
dc.identifier.issn1001-0742
dc.identifier.pmid34412775en_US
dc.identifier.scopus2-s2.0-85100624961en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage124en_US
dc.identifier.urihttps://doi.org/10.1016/j.jes.2021.02.003
dc.identifier.urihttps://hdl.handle.net/20.500.12491/5113
dc.identifier.volume107en_US
dc.identifier.wosWOS:000687721400011en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorBüyükada, Musa
dc.language.isoenen_US
dc.publisherChinese Academy of Sciencesen_US
dc.relation.ispartofJournal of Environmental Sciences (China)en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGas Emissionen_US
dc.subjectHeat Releaseen_US
dc.subjectReaction Mechanismen_US
dc.subjectSpent Potliningen_US
dc.subjectThermal Decompositionen_US
dc.titleThermal behaviors, combustion mechanisms, evolved gasses, and ash analysis of spent potlining for a hazardous waste managementen_US
dc.typeArticleen_US

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