Enhanced SF6 recovery by hierarchically structured MFI zeolite

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dc.contributor.authorChuah, Chong Yangko
dc.contributor.authorYu, Suyeonko
dc.contributor.authorNa, Kyungsuko
dc.contributor.authorBae, Tae-Hyunko
dc.date.accessioned2019-05-29T06:25:11Z-
dc.date.available2019-05-29T06:25:11Z-
dc.date.created2019-05-29-
dc.date.created2019-05-29-
dc.date.issued2018-06-
dc.identifier.citationJOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.62, pp.64 - 71-
dc.identifier.issn1226-086X-
dc.identifier.urihttp://hdl.handle.net/10203/262289-
dc.description.abstractA hierarchical zeolite MR has been synthesised and investigated for its potential feasibility in SF6/N-2 separation. Zeolite MR possessing a hierarchical microporous-mesoporous structure (MFI-2) displayed an enhanced SF6/N-2 selectivity at 40 degrees C as compared to bulk MR (MFI-1). More importantly, at both 25 and 40 degrees C, drastically improved SF6 adsorption kinetics were observed for MFI-2, owing to the presence of mesopores that can facilitate the transport of SF6 within the sorbent Such improved adsorption kinetics allows a rapid adsorption-desorption cycling in an industrial process, which was proven by the breakthrough analysis. Furthermore, MFI-2 was found to have a much lower isosteric heat of adsorption than MFI-1, indicating its feasibility in the industrial operation as it does not require a large energy penalty for regeneration. Further evaluation with an idealised vacuum swing adsorption (VSA) model revealed that MFI-2 can exhibit more competitive performance at 40 degrees C than at room temperature. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE INC-
dc.titleEnhanced SF6 recovery by hierarchically structured MFI zeolite-
dc.typeArticle-
dc.identifier.wosid000431939700007-
dc.identifier.scopusid2-s2.0-85039767552-
dc.type.rimsART-
dc.citation.volume62-
dc.citation.beginningpage64-
dc.citation.endingpage71-
dc.citation.publicationnameJOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY-
dc.identifier.doi10.1016/j.jiec.2017.12.045-
dc.contributor.localauthorBae, Tae-Hyun-
dc.contributor.nonIdAuthorChuah, Chong Yang-
dc.contributor.nonIdAuthorYu, Suyeon-
dc.contributor.nonIdAuthorNa, Kyungsu-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorSF6-
dc.subject.keywordAuthorZeolite MFI-
dc.subject.keywordAuthorHierarchical structure-
dc.subject.keywordAuthorVacuum swing adsorption (VSA)-
dc.subject.keywordAuthorIdeal adsorbed solution theory (IAST)-
dc.subject.keywordPlusMETAL-ORGANIC FRAMEWORKS-
dc.subject.keywordPlusSULFUR-HEXAFLUORIDE-
dc.subject.keywordPlusADSORPTION-ISOTHERMS-
dc.subject.keywordPlusCARBON TETRAFLUORIDE-
dc.subject.keywordPlusCALORIMETRIC HEATS-
dc.subject.keywordPlusGREENHOUSE GASES-
dc.subject.keywordPlusNEAR-AMBIENT-
dc.subject.keywordPlusCO2-
dc.subject.keywordPlusSEPARATION-
dc.subject.keywordPlusMIXTURES-
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