Emission-to-ash detoxification mechanisms of co-combustion of spent pot lining and pulverized coal

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dc.authorid0000-0003-1099-4363en_US
dc.contributor.authorChen, Zihong
dc.contributor.authorLiu, Jingyong
dc.contributor.authorChen, Laiguo
dc.contributor.authorEvrendilek, Fatih
dc.contributor.authorXie, Wuming
dc.contributor.authorWu, Xieyuan
dc.date.accessioned2023-06-23T08:23:45Z
dc.date.available2023-06-23T08:23:45Z
dc.date.issued2021en_US
dc.departmentBAİBÜ, Mühendislik Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.descriptionNational Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)); Natural Sci-ence Foundation of Guangdong Province, China(National Natural Science Foundation of Guangdong Province); Scientific and Technological Planning Project of Guangzhou, China; Research Fund Pro-gram of Guangdong Key Laboratory of Radioactive and Rare Resource Utilizationen_US
dc.description.abstractIn response to the global initiative for greenhouse gas emission reduction, the co-combustion of coal and spent pot lining (SPL) may cost-effectively minimize waste streams and environmental risks. This study aimed to quantify the emission-to-ash detoxification mechanisms of the co-combustion of SPL and pulverized coal (PC) and their kinetics, gas emission, fluorine-leaching toxicity, mineral phases, and migrations. The main reaction covered the ranges of 335-540 ?C and 540-870 ?C while the interactions occurred at 360-780 ?C. The apparent activation energy minimized (66.99 kJ/mol) with 90% PC addition. The rising PC fraction weakened the peak intensity of NaF and strengthened that of Ca2F, NaAlSiO4, and NaAlSi2O6. The addition of PC enhanced the combustion efficiency of SPL and raised the melting temperature by capturing Na. PC exhibited a positive effect on solidifying water-soluble fluorine and stabilizing alkali and alkaline earth metals. The leaching fluorine concentrations of the co-combustion ashes were lower than did SPL mono-combustion. The main gases emitted were HF, NH3, NOx, CO, and CO2. HF was largely released at above 800 ?C. Multivariate Gaussian process modelbased optimization of the operational conditions also verified the gas emissions results. Our study synchronizes the utilization and detoxification of SPL though co-combustion and provides insights into an eco-friendlier lifecycle control on the waste-to-energy conversion.en_US
dc.description.sponsorshipNational Natural Science Foundation of China [51978175, 41773130]; Natural Sci-ence Foundation of Guangdong Province, China [2017A030310323]; Scientific and Technological Planning Project of Guangzhou, China [202103000004]; Research Fund Pro-gram of Guangdong Key Laboratory of Radioactive and Rare Resource Utilization [2018B030322009]en_US
dc.identifier.citationChen, Z., Liu, J., Chen, L., Evrendilek, F., Xie, W., Wu, X., ... & Li, W. (2021). Emission-to-ash detoxification mechanisms of co-combustion of spent pot lining and pulverized coal. Journal of Hazardous Materials, 418, 126380.en_US
dc.identifier.doi10.1016/j.jhazmat.2021.126380
dc.identifier.endpage18en_US
dc.identifier.issn0304-3894
dc.identifier.issn1873-3336
dc.identifier.pmid34329026en_US
dc.identifier.scopus2-s2.0-85108079831en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.jhazmat.2021.126380
dc.identifier.urihttps://hdl.handle.net/20.500.12491/11195
dc.identifier.volume418en_US
dc.identifier.wosWOS:000689470100005en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorEvrendilek, Fatih
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/closedAccessen_US
dc.subjectKineticsen_US
dc.subjectEvolved Gasesen_US
dc.subjectFluorineen_US
dc.subjectSewage-Sludgeen_US
dc.subjectCombustion Behaviorsen_US
dc.subjectKineticsen_US
dc.titleEmission-to-ash detoxification mechanisms of co-combustion of spent pot lining and pulverized coalen_US
dc.typeArticleen_US

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