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dc.contributor.authorGürkan R.
dc.contributor.authorCeylan H.
dc.contributor.authorŞahan T.
dc.contributor.authorSavran A.
dc.contributor.authorKubilay Ş.
dc.date.accessioned2019-07-27T12:10:23Z
dc.date.accessioned2019-07-28T09:12:39Z
dc.date.available2019-07-27T12:10:23Z
dc.date.available2019-07-28T09:12:39Z
dc.date.issued2005
dc.identifier.issn0929-5607
dc.identifier.urihttps://dx.doi.org/10.1007/s10450-005-5646-8
dc.identifier.urihttps://hdl.handle.net/20.500.12418/4433
dc.description.abstractInverse gas chromatography has been used to evaluate the adsorption parameters (?H a, ?H st, ?S a and ?G a) of some probe molecules, each representing a class of organic (n-hexane, cyclohexane, benzene, n-octane, 1-octene and isooctane) on bentonite and chemically treated-bentonites. The adsorption parameters of the probes on the bentonite samples were determined in infinite dilution region. Adsorption of the organic species was investigated in the temperature range of 200-275°C, using a flame ionization detector, and nitrogen as a carrier gas. The net retention volumes (V n ) of the probes were determined by the help of the retention times (t R ) observed on gas chromatograms for each probe. Injection was made at least three times for each probe, obtaining reproducible results of ± 0.5%. It was found that benzene exhibits more negative ?H than for n-hexane and cyclohexane on all of the adsorbents. In addition, it was found that 1-octene exhibits more negative ?H than for n-octane and isooctane on the chemically treated-bentonites, whereas n-octane exhibits more negative ?H than for 1-octene and isooctane on the natural bentonite. Also, interactions of benzene with the natural- and chemically treated-bentonites were found to be stronger than those of n-hexane and cyclohexane with the same carbon number. Again, interactions of the 1-octene with the chemically treated-bentonites were found to be stronger those of n-octane and isooctane with the same carbon number. On the contrary, interactions of n-octane with the untreated-bentonite were found to be stronger than those of 1-octene and isooctane. © 2005 Springer Science + Business Media, Inc.en_US
dc.description.sponsorshipThis study was partially supported by the Research Fund of Yüzüncü Yı l University, Van, Turkey. The authors would like to thank their colleagues for their constant support and helps about the experimental studies.en_US
dc.language.isoengen_US
dc.relation.isversionof10.1007/s10450-005-5646-8en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAdsorptionen_US
dc.subjectBentoniteen_US
dc.subjectHydrocarbonsen_US
dc.subjectInverse gas chromatographyen_US
dc.subjectThermodynamic parametersen_US
dc.titleEvaluation of the thermodynamic parameters for the adsorption of some hydrocarbons on chemically treated-bentonites by inverse gas chromatographyen_US
dc.typearticleen_US
dc.relation.journalAdsorptionen_US
dc.contributor.departmentGürkan, R., Department of Chemistry, University of Cumhuriyet, Science and Arts of Faculty, 58140 Sivas, Turkey -- Ceylan, H., Department of Chemistry, University of Yüzüncü Yil, Science and Arts of Faculty, 65080 Van, Turkey -- Şahan, T., Department of Chemistry, University of Yüzüncü Yil, Science and Arts of Faculty, 65080 Van, Turkey -- Savran, A., Department of Chemistry, University of Yüzüncü Yil, Science and Arts of Faculty, 65080 Van, Turkey -- Kubilay, Ş., Department of Chemistry, University of Yüzüncü Yil, Science and Arts of Faculty, 65080 Van, Turkeyen_US
dc.identifier.volume11en_US
dc.identifier.issue05.Junen_US
dc.identifier.endpage612en_US
dc.identifier.startpage603en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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