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dc.contributor.authorZarca Lago, Raúl 
dc.contributor.authorOrtiz Sainz de Aja, Alfredo 
dc.contributor.authorGorri Cirella, Eugenio Daniel 
dc.contributor.authorOrtiz Uribe, Inmaculada 
dc.contributor.otherUniversidad de Cantabriaes_ES
dc.description.abstractThe present work expands previous modeling knowledge on facilitated transport membranes for olefin/paraffin separation. A new robust and practical mathematical model for the description of light olefin flux in composite polymer/ionic liquid/Ag+ membranes is reported. The model takes into account three different transport mechanisms, i.e., solution-diffusion, fixed-site carrier and mobile carrier transport mechanisms. Fixed-site carrier contribution that appears thanks to the bounding of silver cations with the polymer chains is described through a “hopping parameter”. Furthermore, given that the addition of an ionic liquid to the membrane composition promotes carrier mobility, the inclusion of a dedicated expression is necessary for a realistic description of mobile-carrier transport phenomena. The contribution of each mechanism in weighted based on the membrane composition. In order to check the model suitability, simulated values have been matched to experimental data obtained by continuous flow propane/propylene permeation experiments through PVDF-HFP/BMImBF4/AgBF4 composite membranes, working with 50:50 gas mixtures at different temperature and pressure. The resultant model offers good predictions for olefin flux and provides a very useful tool for process optimization and scaling-up. To our knowledge, this is the first time that mobile and fixed site carrier mechanisms performance are simultaneously modeled considering the influence of temperature, pressure and carrier loading.es_ES
dc.description.sponsorshipFinancial support from projects CTQ2015-66078-R and CTQ2016-75158-R (MINECO, Spain-FEDER 2014–2020) is gratefully acknowledged. Raúl Zarca also thanks the Universidad de Cantabria for a postgraduate fellowship.es_ES
dc.format.extent38 p.es_ES
dc.rights© 2017, Elsevier. Licensed under the Creative Commons Reconocimiento-NoComercial-SinObraDerivadaes_ES
dc.sourceJournal of Membrane Science, 2017, 542, 168-176es_ES
dc.subject.otherPropylene-propane separationes_ES
dc.subject.otherFacilitated transportes_ES
dc.subject.otherMathematical modeles_ES
dc.titleGeneralized predictive modeling for facilitated transport membranes accounting for fixed and mobile carrierses_ES

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© 2017, Elsevier. Licensed under the Creative Commons Reconocimiento-NoComercial-SinObraDerivadaExcept where otherwise noted, this item's license is described as © 2017, Elsevier. Licensed under the Creative Commons Reconocimiento-NoComercial-SinObraDerivada