Properties of ethyl alcohol-water mixtures as a reductant in a SCR system at low exhaust gas temperatures

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dc.contributor.authorAhmad, Mohamad Al Cheikh Mohamad
dc.contributor.authorKeskin, Ali
dc.contributor.authorOzarslan, Himmet
dc.contributor.authorKeskin, Zeycan
dc.date.accessioned2025-03-17T12:25:45Z
dc.date.available2025-03-17T12:25:45Z
dc.date.issued2024
dc.departmentTarsus Üniversitesi
dc.description.abstractIn this experimental study, effects of ethyl alcohol-water mixtures as reducing agents in the presence of Ag/Cu-based catalyst on NOx conversion efficiency were investigated. The Ag/Cu-based catalyst was synthesized with the impregnation method. In this method, cordierite structure was immersed into the solution including nanoparticle materials and then the solvent was evaporated. The analysis done by SEM and XRD revealed the structural and chemical properties of the catalyst. In order to obtain information on how the addition of water affects the activity of the NOx conversion in the SCR exhaust test performance system, tests were carried out depending on a temperature window of 170-260 degrees C, two different space velocities (20000 h(-1), and 40000 h(-1)), and three different reductants (100% Ethyl alcohol (E), 4% water + 96% Ethyl alcohol (E4 W), and 8% water + 92% Ethyl alcohol (E8 W)). The increase in the engine load showed a little increase in the NOx conversion rates. Taking into account the space velocity, the NOx conversion rates were higher at 20000 h(-1) in comparison at 40000 h(-1). The highest NOx conversion rate recorded in the tests was 68% at 4 kw engine load, 100% ethyl alcohol spraying, and 20000 h(-1). However, the results of the tests showed that when the water content of the reductants increased from 4% to 8%, the NOx conversion rates decreased at both 20000 h(-1) and 40000 h(-1) SV. The highest NOx conversion rates of the tests conducted with E4 W and E8 W reductants were 62.75% and 61.78%, respectively, at 4 kw engine load and 20000 h(-1). Also, the highest NOx conversion rates of the same reductants were 55.8% and 55.01%, respectively, at 4 kw engine load and 40000 h(-1). It was concluded that the water added to ethyl alcohol has a negative effect on NOx reduction.
dc.description.sponsorshipCukurova University Scientific Research Projects Unit [FYL-2018-9988]
dc.description.sponsorshipThis work was supported by Cukurova University Scientific Research Projects Unit (Project Code: FYL-2018-9988).
dc.identifier.doi10.1080/15567036.2020.1733142
dc.identifier.endpage5595
dc.identifier.issn1556-7036
dc.identifier.issn1556-7230
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85081717772
dc.identifier.scopusqualityQ1
dc.identifier.startpage5584
dc.identifier.urihttps://doi.org/10.1080/15567036.2020.1733142
dc.identifier.urihttps://hdl.handle.net/20.500.13099/1857
dc.identifier.volume46
dc.identifier.wosWOS:000520356500001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTaylor & Francis Inc
dc.relation.ispartofEnergy Sources Part A-Recovery Utilization and Environmental Effects
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectNOx
dc.subjectSCR
dc.subjecthydrocarbons
dc.subjectreductants
dc.subjectdiesel Engine
dc.titleProperties of ethyl alcohol-water mixtures as a reductant in a SCR system at low exhaust gas temperatures
dc.typeArticle

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