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dc.contributor.authorEtxeberria-Benavides, Miren
dc.contributor.authorJohnson, Timothy
dc.contributor.authorCao, Shuai
dc.contributor.authorZornoza, Beatriz
dc.contributor.authorCoronas, Joaquín
dc.contributor.authorSanchez-Lainez, Javier
dc.contributor.authorSabetghadam, Anahid
dc.contributor.authorLiu, Xinlei
dc.contributor.authorAndres-Garcia, Eduardo
dc.contributor.authorKapteijn, Freek
dc.contributor.authorGascon, Jorge
dc.contributor.authorDavid, Oana
dc.date.accessioned2020-01-09T11:01:28Z
dc.date.available2020-01-09T11:01:28Z
dc.date.issued2020-04-15
dc.identifier.citationEtxeberria-Benavides, Miren, Timothy Johnson, Shuai Cao, Beatriz Zornoza, Joaquín Coronas, Javier Sanchez-Lainez, Anahid Sabetghadam, et al. “PBI Mixed Matrix Hollow Fiber Membrane: Influence of ZIF-8 Filler over H2/CO2 Separation Performance at High Temperature and Pressure.” Separation and Purification Technology 237 (April 2020): 116347. doi:10.1016/j.seppur.2019.116347.en
dc.identifier.issn1383-5866en
dc.identifier.urihttp://hdl.handle.net/11556/843
dc.description.abstractHigh performance and commercially attractive mixed-matrix membranes were developed for H2/CO2 separation via a scalable hollow fiber spinning process. Thin (~300 nm) and defect-free selective layers were successfully created with a uniform distribution of the nanosized (~60 nm) zeolitic-imidazole framework (ZIF-8) filler within the polymer (polybenzimidazole, PBI) matrix. These membranes were able to operate at high temperature (150 °C) and pressure (up to 30 bar) process conditions required in treatment of pre-combustion and syngas process gas streams. Compared with neat PBI hollow fibers, filler incorporation into the polymer matrix leads to a strong increase in H2 permeance from 65 GPU to 107 GPU at 150 °C and 7 bar, while the ideal H2/CO2 selectivity remained constant at 18. For mixed gas permeation, there is competition between H2 and CO2 transport inside ZIF-8 structure. Adsorption of CO2 in the nanocavities of the filler suppresses the transport of the faster permeating H2 and consequently decreases the H2 permeance with total feed pressure down to values equal to the pure PBI hollow fibers for the end pressure of 30 bar. Therefore, the improvement of fiber performance for gas separation with filler addition is compromised at high operating feed pressures, which emphasizes the importance of membrane evaluation under relevant process conditions.en
dc.description.sponsorshipThe authors acknowledge the financial support of the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013), under grant agreement no. 608490, M4CO2 project. The Laboratorio de Microscopías Avanzadas (LMA) at INA, University of Zaragoza is also acknowledged.en
dc.language.isoengen
dc.publisherElsevier B.V.en
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titlePBI mixed matrix hollow fiber membrane: Influence of ZIF-8 filler over H2/CO2 separation performance at high temperature and pressureen
dc.typearticleen
dc.identifier.doi10.1016/j.seppur.2019.116347en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/FP7/608490/EU/Energy efficient MOF-based Mixed Matrix Membranes for CO2 Capture/M4CO2en
dc.rights.accessRightsopenAccessen
dc.subject.keywordsH2/CO2 separationen
dc.subject.keywordsHollow fiber spinningen
dc.subject.keywordsCO2 captureen
dc.subject.keywordsPre-combustionen
dc.subject.keywordsMixed matrix membraneen
dc.identifier.essn1873-3794en
dc.journal.titleSeparation and Purification Technologyen
dc.page.initial116347en
dc.volume.number237en


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