Publicação
Separation of branched hexane isomers on zeolite BETA
| Resumo: | An experimental study of the single, binary, ternary and quaternary fixed bed adsorption of hexane isomers onto zeolite BETA was performed covering the temperature range between 423 K and 523 K and partial pressures up to 0.3 bar. Adsorption equilibrium isotherms were collected from breakthrough experiments. Based on an analysis of sorption events at the molecular level, a Tri-Site Langmuir model (TSL) was developed to interpret the equilibrium data with good accuracy. At the partial pressures studied, it was found that the degree of branching was related to the affinity; the sorption hierarchy was most favourable towards the linear isomer and least favourable towards the di-branched ones. A mathematical model based on a linear driving force (LDF) was developed and used to test the experimental data. It was found that the model predicted the behaviour of the fixed bed experiments with good accuracy. Zeolite BETA demonstrated significant selectivity between branched C-6 isomers (especially at low coverage), thereby suggesting a means of solving this difficult separation problem. |
|---|---|
| Autores principais: | Bárcia, Patrick da Silva |
| Outros Autores: | Silva, José A.C.; Rodrigues, Alírio |
| Assunto: | Adsorption |
| Ano: | 2007 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173124287496192 |
|---|---|
| author | Bárcia, Patrick da Silva |
| author2 | Silva, José A.C. Rodrigues, Alírio |
| author2_role | author author |
| author_facet | Bárcia, Patrick da Silva Silva, José A.C. Rodrigues, Alírio |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Bárcia, Patrick da Silva\"},{\"Person.name\":\"Silva, José A.C.\",\"Person.identifier.orcid\":\"0000-0003-1778-3833\"},{\"Person.name\":\"Rodrigues, Alírio\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Bárcia, Patrick da Silva Silva, José A.C. Rodrigues, Alírio |
| datacite.date.Accepted.fl_str_mv | 2007-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2011-02-04T16:36:45Z |
| datacite.date.embargoed.fl_str_mv | 2011-02-04T16:36:45Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Adsorption |
| datacite.titles.title.fl_str_mv | Separation of branched hexane isomers on zeolite BETA |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Bárcia, Patrick da Silva Silva, José A.C. Rodrigues, Alírio |
| dc.date.Accepted.fl_str_mv | 2007-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2011-02-04T16:36:45Z |
| dc.date.embargoed.fl_str_mv | 2011-02-04T16:36:45Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/3274 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Multi Science |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Adsorption |
| dc.title.fl_str_mv | Separation of branched hexane isomers on zeolite BETA |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | An experimental study of the single, binary, ternary and quaternary fixed bed adsorption of hexane isomers onto zeolite BETA was performed covering the temperature range between 423 K and 523 K and partial pressures up to 0.3 bar. Adsorption equilibrium isotherms were collected from breakthrough experiments. Based on an analysis of sorption events at the molecular level, a Tri-Site Langmuir model (TSL) was developed to interpret the equilibrium data with good accuracy. At the partial pressures studied, it was found that the degree of branching was related to the affinity; the sorption hierarchy was most favourable towards the linear isomer and least favourable towards the di-branched ones. A mathematical model based on a linear driving force (LDF) was developed and used to test the experimental data. It was found that the model predicted the behaviour of the fixed bed experiments with good accuracy. Zeolite BETA demonstrated significant selectivity between branched C-6 isomers (especially at low coverage), thereby suggesting a means of solving this difficult separation problem. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/bd0a04ef-9123-4620-8bd4-5ec00d460d32/download |
| id | ipb_feb88b01a16e021a3ebcc276dbd49c45 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/3274 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/3274 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Bárcia, Patrick da Silva Silva, José A.C. Silva, José A.C. https://www.ciencia-id.pt/C11B-F5CF-7C78 C11B-F5CF-7C78 http://orcid.org/0000-0003-1778-3833 0000-0003-1778-3833 Rodrigues, Alírio |
| publishDate | 2007 |
| publisher.none.fl_str_mv | Multi Science |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engMulti ScienceporAn experimental study of the single, binary, ternary and quaternary fixed bed adsorption of hexane isomers onto zeolite BETA was performed covering the temperature range between 423 K and 523 K and partial pressures up to 0.3 bar. Adsorption equilibrium isotherms were collected from breakthrough experiments. Based on an analysis of sorption events at the molecular level, a Tri-Site Langmuir model (TSL) was developed to interpret the equilibrium data with good accuracy. At the partial pressures studied, it was found that the degree of branching was related to the affinity; the sorption hierarchy was most favourable towards the linear isomer and least favourable towards the di-branched ones. A mathematical model based on a linear driving force (LDF) was developed and used to test the experimental data. It was found that the model predicted the behaviour of the fixed bed experiments with good accuracy. Zeolite BETA demonstrated significant selectivity between branched C-6 isomers (especially at low coverage), thereby suggesting a means of solving this difficult separation problem.application/pdfporSeparation of branched hexane isomers on zeolite BETABárcia, Patrick da SilvaPersonalSilva, José A.C.DSpacehttp://dspace.org/items/16366ede-a7d6-45ff-a8c9-eff9bdde35c7DSpacehttp://dspace.org/items/16366ede-a7d6-45ff-a8c9-eff9bdde35c7SilvaJosé A.C.Ciência IDhttps://www.ciencia-id.ptC11B-F5CF-7C78ORCIDhttp://orcid.org0000-0003-1778-3833Scopus Author IDhttps://www.scopus.com7403023684Rodrigues, AlírioHostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISSNIsPartOf0263-6174DOIIsPartOf10.1260/0263617077823981732011-02-04T16:36:45Z20072007-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/3274http://purl.org/coar/access_right/c_abf2open accessAdsorption37629 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/bd0a04ef-9123-4620-8bd4-5ec00d460d32/downloadAdsorption Science & Technology |
| spellingShingle | Separation of branched hexane isomers on zeolite BETA Bárcia, Patrick da Silva Adsorption |
| status | SINGLETON |
| subject.fl_str_mv | Adsorption |
| title | Separation of branched hexane isomers on zeolite BETA |
| title_full | Separation of branched hexane isomers on zeolite BETA |
| title_fullStr | Separation of branched hexane isomers on zeolite BETA |
| title_full_unstemmed | Separation of branched hexane isomers on zeolite BETA |
| title_short | Separation of branched hexane isomers on zeolite BETA |
| title_sort | Separation of branched hexane isomers on zeolite BETA |
| topic | Adsorption |
| topic_facet | Adsorption |
| url | http://hdl.handle.net/10198/3274 |
| visible | 1 |