Equilibrium, kinetic and thermodynamic studies for dynamic adsorption of benzene in gas phase onto activated carbon produced from elaeagnus angustifolia seeds

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dc.contributor.authorKutluay, Sinan
dc.contributor.authorBaytar, Orhan
dc.contributor.authorŞahin, Ömer
dc.date.accessioned2019-12-27T10:48:41Z
dc.date.available2019-12-27T10:48:41Z
dc.date.issued2019en_US
dc.departmentMühendislik Fakültesien_US
dc.description.abstractAdsorption of pollutants onto activated carbon is very important in air purification systems. In this study, the dynamic adsorption of benzene in gas phase onto activated carbon which was produced from the elaeagnus angustifolia seeds, was investigated using a laboratory-scale continuous flow fixed-bed reactor system, under atmospheric pressure. The effects of the adsorption conditions such as activated carbon particle size (180–500 μm), nitrogen (N2) gas flow rate (0.050–0.120 L min−1) as the benzene in gas phase carrier, amount of activated carbon (0.10–0.75 g), concentration of benzene in gas phase at the inlet (9.95–14.85 ppm) and the adsorption temperature (293–323 K) on both the adsorption capacity and the adsorption efficiency were examined. Adsorption efficiency was achieved up to 100% under various adsorption conditions. Adsorption kinetics data were analyzed by using the Pseudo-First Order and Pseudo-Second Order kinetic models. Langmuir, Freundlich and Dubinin-Radushkevich models were used for the analysis of adsorption isotherms. The results showed that the Langmuir isotherm and Pseudo-Second Order models described the experimental data better when compared to other models. The maximum monolayer adsorption capacity (qmax) of activated carbon was determined to be 99.8 mg g−1 for 303 K. Thermodynamic analyzes indicated that the adsorption process of benzene in gas phase onto activated carbon was spontaneous (ΔG°<0), exothermic (ΔH°<0) and physical (ΔH°<20 kJ mol−1).en_US
dc.identifier.citationKutluay, s., Baytar, o., & Şahin, ö. (2019). equilibrium, kinetic and thermodynamic studies for dynamic adsorption of benzene in gas phase onto activated carbon produced from elaeagnus angustifolia seeds. journal of environmental chemical engineering, 7(2), 102947.en_US
dc.identifier.doi10.1016/j.jece.2019.102947
dc.identifier.endpage102947en_US
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85061664960
dc.identifier.scopusqualityQ1
dc.identifier.startpage102947en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12604/2513
dc.identifier.volume7en_US
dc.identifier.wosWOS:000463767100046
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Environmental Chemical Engineering
dc.relation.publicationcategoryMakale - Uluslararası - Editör Denetimli Dergien_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmzKG_20241224
dc.subjectActivated carbonen_US
dc.subjectBenzene adsorptionen_US
dc.subjectIsothermsen_US
dc.subjectKineticsen_US
dc.subjectThermodynamicsen_US
dc.titleEquilibrium, kinetic and thermodynamic studies for dynamic adsorption of benzene in gas phase onto activated carbon produced from elaeagnus angustifolia seedsen_US
dc.typeArticleen_US

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