Sulfidation performance of unsupported and SBA 15-supported Ca-based mixed metal oxides

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dc.contributor.authorKanca, Arzu
dc.contributor.authorAlpsoy, Zeynep
dc.contributor.authorAta, Osman Nuri
dc.date.accessioned2024-06-06T12:34:28Z
dc.date.available2024-06-06T12:34:28Z
dc.date.issued2023-12-25
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Kimya Mühendisliği Bölümü
dc.description.abstractCoal is the most widely used fossil fuel resource, and clean coal technologies allow an increase in the efficiency of clean energy production. Gasification-based combined cycle power generation systems, for example, aim to produce a mixture of CO and H2 (syngas) formed from coal and biomass. However, H2S is an undesired gasification product of fossil fuels with their high sulfur content. Hot gas desulfurization (HGD) reduces the sulfur contents of the gasification products by eliminating thermal losses of endothermic syngas formation processes. This study aims to develop efficient sorbents to remove H2S from hot flue gas. Unsupported and SBA 15-supported Ca-based binary mixed metal oxides (CuO, FeO, MnO, ZnO) were synthesized as sulfur sorbents by the wet impregnation method. The crystal structure of the sorbents was determined by X-ray diffraction (XRD), while BET analysis was used to determine the surface area and pore size distribution of the sorbents. The results of the XRD and BET analyses revealed mixed metal oxide formation and a high surface area of SBA 15-supported sorbents, respectively. Mixed metal oxide formation was also confirmed by Fourier transform infrared radiation (FTIR) spectroscopy. The desulfurization performance of the sorbents was examined by a simulated gas mixture at 800 °C. A gas chromatography analyzer equipped with a flame photometric detector was used to follow the H2S concentration. SBA 15-supported CaO–MnO exhibited the best desulfurization performance at 800 °C with a breakthrough sulfur capacity (BSC) of 43.38 g S/100 g sorbent in the longest breakthrough time of 1077 min.
dc.description.sponsorshipMeO couples: 49–51, 52,53, JCPDS 36–1451, JPDS 65–7467, TiO2, ZrO2, ∼1077
dc.identifier10.1016/j.ijhydene.2023.07.241
dc.identifier.doi10.1016/j.ijhydene.2023.07.241
dc.identifier.endpage39703
dc.identifier.issn03603199
dc.identifier.issue99
dc.identifier.scopusqualityQ1
dc.identifier.startpage39690
dc.identifier.urihttps://hdl.handle.net/20.500.12885/2238
dc.identifier.volume48
dc.identifier.wosWOS:001114430800001
dc.identifier.wosqualityQ2
dc.institutionauthorAlpsoy, Zeynep
dc.institutionauthoridhttps://orcid.org/0000-0001-8815-8862
dc.language.isoen
dc.publisherElsevier Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.ispartofseriesInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.relation.tubitak118M603
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCa-based sorbents
dc.subjectDesulfurization
dc.subjectSBA 15
dc.titleSulfidation performance of unsupported and SBA 15-supported Ca-based mixed metal oxides
dc.typeArticle
oaire.citation.issue99
oaire.citation.volume48

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