Comparative determination of the time-dependent accumulation of metal oxides in the landfill gas combustion chamber deposits using SEM-EDS, XRF and ICP OES

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dc.authoridYILDIZ, FIKRET/0000-0002-7550-3580
dc.contributor.authorSevimoglu, Orhan
dc.contributor.authorSomek, Ozge Osturk
dc.contributor.authorYildiz, Fikret
dc.date.accessioned2025-03-23T19:40:53Z
dc.date.available2025-03-23T19:40:53Z
dc.date.issued2024
dc.departmentSinop Üniversitesi
dc.description.abstractNon-purified landfill gas (LFG) leads to the formation of complex deposits in combustion chambers due to impurities such as siloxanes, sulfur compounds, and organometallic compounds containing elements such as Si, S, Sb, Sn. This study focused on identifying the elemental composition of deposits from four combustion chambers using analytical techniques including SEM-EDS, WDXRF, and microwave digestion ICP OES. The dominant element, Si, with concentrations (wt%) in the deposits was measured by SEM-EDS, ICP-OES, and WDXRF, respectively, as follows: 17.04 +/- 8.59, 21.89 +/- 4.39, and 16.63 +/- 0.94 for cylinder head deposits, and 13.28 +/- 6.97, 15.40 +/- 5.40, and 12.64 +/- 1.64 for piston head deposits. Excluding C, O and N, which could not be analyzed by all three techniques, the multi-analytical approaches demonstrated strong correlations between EDS results and those obtained from WDXRF and ICP OES, with R-2 values of 0.9173 and 0.9002 for cylinder head deposits, respectively. It was also revealed that the elemental composition of deposits varied between combustion chambers. The average mass fractions of all deposit surfaces were ranked as follows for elements exceeding 1 %: O (45.38 %) > Si (16.67 %) > Ca (9.87 %) > Sb (7.21 %) > S (5.98 %) > Sn (3.51 %) > C (2.83 %) > P (2.35 %). Elements below 1 % were ranked as: Na (0.91 %) > N (0.80 %) > Al (0.74 %) > Fe (0.48 %) > Mg (0.30 %). Consequently, the multi-spectrometry analysis approach provides a more comprehensive understanding of the deposit composition, enabling the determination of primary contributors and the most elements. Future studies may involve more general determining the concentrations of organometallic compounds in the LFG, which are the source of the elements found in the deposit.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [120Y067]
dc.description.sponsorshipThis research was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) under Project No. 120Y067. Special thanks are extended to the energy company, Her Energy and Environmental Technologies Electricity Generation Inc., for providing the deposit samples. We express our gratitude to Ahmet Naz & imath;m for his valuable assistance with SEM imaging and EDS analysis. It should be noted that the results of this study do not hold any responsibility for third parties.
dc.identifier.doi10.1016/j.microc.2024.112042
dc.identifier.issn0026-265X
dc.identifier.issn1095-9149
dc.identifier.scopus2-s2.0-85207799379
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.microc.2024.112042
dc.identifier.urihttps://hdl.handle.net/11486/6445
dc.identifier.volume207
dc.identifier.wosWOS:001350551900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofMicrochemical Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectLandfill gas
dc.subjectElemental analysis
dc.subjectDeposit accumulation
dc.subjectSpectroscopy analysis
dc.titleComparative determination of the time-dependent accumulation of metal oxides in the landfill gas combustion chamber deposits using SEM-EDS, XRF and ICP OES
dc.typeArticle

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