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Fixed bed adsorption of CO2, CH4, and N2 and their mixtures in potassium-exchanged binder-free beads of Y zeolite

2021Journal article Open access
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dc.contributor.authorAly, Ezzeldin
dc.contributor.authorZafanelli, Lucas F.A.S.
dc.contributor.authorHenrique, Adriano
dc.contributor.authorPires, Marcella Golini
dc.contributor.authorRodrigues, Alírio
dc.contributor.authorGleichmann, Kristin
dc.contributor.authorSilva, José A.C.
dc.contributor.authorGolini Pires, Marcella
dc.date.accessioned2021-11-17T15:49:31Z
dc.date.available2021-11-17T15:49:31Z
dc.date.issued2021
dc.description.abstractThe adsorption of carbon dioxide (CO2), methane (CH4), and nitrogen (N2) has been studied on potassium-exchanged (95%) binder-free beads of Y zeolite through single, binary, and ternary fixed bed breakthrough experiments, covering the temperature range between 313 and 423 K and a pressure of up to 350 kPa. At 313 K and 350 kPa, the single-component data obtained showed that the amounts adsorbed of CO2, CH4, and N2 are around 6.42, 1.45, and 0.671 mol kg-1, respectively. The binary experiments CO2/N2 carried out under typical post-combustion conditions show a selectivity of CO2 over N2 around 104. The ternary experiments resulted in the selectivities of CO2 over CH4 and N2 around 19 and 45, respectively. The adsorption equilibrium data have been modeled by the dual-site Langmuir model, and the breakthrough experiments were numerically simulated with a suitable dynamic fixed bed adsorption model. The model predicts with good accuracy the systematic behavior of all breakthrough experiments. The results shown in the present work prove that the potassium-exchanged binder-free beads of Y zeolite enhance the amount adsorbed of CO2 at low partial pressure over other alkali metal-exchanged faujasites and efficiently separate it from binary (CO2/N2) and ternary (CO2/CH4/N2) mixtures by fixed bed adsorption.pt_PT
dc.description.sponsorshipThe authors thank the Foundation for Science and Technology (FCT, Portugal) and ERDF under Programme PT2020 to CIMO (UID/AGR/00690/2019) and POCI-01-0145- FEDER006984-Associate Laboratory LSRE-LCM. The authors also thank the Foundation for Science and Technology (FCT, Portugal) under Programme PTDC 2020 * 3599-PPCDTI * Engenharia dos Processos Químicos project PTDC/EQUEPQ/0467/2020. Last, the authors thank the Foundation for Science and Technology (FCT, Portugal) through the individual research grants SFRH/BD/148525/2019 for A.H. and DFA/BD/7925/2020 for L.F.A.S.Z.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAly, Ezzeldin; Zafanelli, Lucas F.A.S.; Henrique, Adriano; Pires, Marcella Golini; Rodrigues, Alírio; Gleichmann, Kristin; Silva, José A.C. (2021). Fixed bed adsorption of CO2, CH4, and N2 and their mixtures in potassium-exchanged binder-free beads of Y zeolite. Industrial & Engineering Chemistry Research. ISSN 0888-5885. 60:42, p. 15236- 15247pt_PT
dc.identifier.doi10.1021/acs.iecr.1c02261pt_PT
dc.identifier.issn0888-5885
dc.identifier.urihttp://hdl.handle.net/10198/24213
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPotassiumpt_PT
dc.subjectAdsorptionpt_PT
dc.subjectEquilibriumpt_PT
dc.subjectZeolitespt_PT
dc.subjectSelectivitypt_PT
dc.titleFixed bed adsorption of CO2, CH4, and N2 and their mixtures in potassium-exchanged binder-free beads of Y zeolitept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage15247pt_PT
oaire.citation.issue42pt_PT
oaire.citation.startPage15236pt_PT
oaire.citation.titleIndustrial & Engineering Chemistry Researchpt_PT
oaire.citation.volume60pt_PT
person.familyNameAly
person.familyNameZafanelli
person.familyNameHenrique
person.familyNameSilva
person.familyNameGolini Pires
person.givenNameEzzeldin
person.givenNameLucas F.A.S.
person.givenNameAdriano
person.givenNameJosé A.C.
person.givenNameMarcella
person.identifier.ciencia-id3D11-114D-1019
person.identifier.ciencia-idDB18-4E7D-6696
person.identifier.ciencia-idC11B-F5CF-7C78
person.identifier.orcid0000-0003-4840-2597
person.identifier.orcid0000-0001-5187-2042
person.identifier.orcid0000-0002-5227-9790
person.identifier.orcid0000-0003-1778-3833
person.identifier.orcid0000-0003-3678-5746
person.identifier.scopus-author-id7403023684
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery16366ede-a7d6-45ff-a8c9-eff9bdde35c7

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