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dc.contributor.author
Poto, Serena
dc.contributor.author
Aguirre, Alejo
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dc.contributor.author
Huigh, F.
dc.contributor.author
Llosa Tanco, Margot Anabell
dc.contributor.author
Pacheco Tanaka, David Alfredo
dc.contributor.author
Gallucci, Fausto
dc.contributor.author
Neira d'Angelo, M. Fernanda
dc.date.available
2024-02-05T12:55:47Z
dc.date.issued
2023-07
dc.identifier.citation
Poto, Serena; Aguirre, Alejo; Huigh, F.; Llosa Tanco, Margot Anabell; Pacheco Tanaka, David Alfredo; et al.; Carbon molecular sieve membranes for water separation in CO2 hydrogenation reactions: Effect of the carbonization temperature; Elsevier Science; Journal of Membrane Science; 677; 7-2023; 1-15
dc.identifier.issn
0376-7388
dc.identifier.uri
http://hdl.handle.net/11336/225713
dc.description.abstract
Carbon membranes are a potentially attractive candidate for the in-situ removal of water vapor in CO2 hydrogenation reactions. Their hydrophilicity and pore structure can be tuned by properly adjusting the synthesis procedure. Herein, we assess the effect of the carbonization temperature (450–750 °C) on the performance of supported CMSM in terms of vapor/gas separation, in correlation with changes in their surface functionality and porous structure. FTIR spectra showed that the nature of the functional groups changes with the evolution of the carbonization step, leading to a gradual loss in hydrophilicity (i.e., OH stretching disappears at Tcarb ≥ 600 °C). The extent of water adsorption displays an optimum at Tcarb of 500 °C, with the membrane carbonized at 650 °C being the least hydrophilic. We found that the pore size distribution strongly influences the water permeance. At all Tcarb, adsorption-diffusion (AD) is the dominant transport mechanisms. However, as soon as ultra-micropores appear (Tcarb: 600–700 °C) molecular sieving (MS) contributes to an increase in the water permeance, despites a loss in hydrophilicity. At Tcarb ≥ 750 °C, MS pores disappear, causing a drop in the water permeance. Finally, the permeance of different gases (N2, H2, CO, CO2) is mostly affected by the pore size distribution, with MS being the dominant mechanism over the AD, except for CO2. However, the extent and mechanism of gas permeation drastically change as a function of the water content in the feed, indicating that gas/vapor molecules need to compete to access the pores of the membranes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ADSORPTION-DIFFUSION
dc.subject
CARBON MEMBRANES
dc.subject
CARBONIZATION TEMPERATURE
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CO2 HYDROGENATION
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HYDROPHILICITY
dc.subject
MOLECULAR SIEVING
dc.subject
WATER SEPARATION
dc.subject.classification
Otras Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Carbon molecular sieve membranes for water separation in CO2 hydrogenation reactions: Effect of the carbonization temperature
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-02T15:38:14Z
dc.journal.volume
677
dc.journal.pagination
1-15
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Poto, Serena. Eindhoven University of Technology; Países Bajos
dc.description.fil
Fil: Aguirre, Alejo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Huigh, F.. Eindhoven University of Technology; Países Bajos
dc.description.fil
Fil: Llosa Tanco, Margot Anabell. No especifíca;
dc.description.fil
Fil: Pacheco Tanaka, David Alfredo. No especifíca;
dc.description.fil
Fil: Gallucci, Fausto. Eindhoven University of Technology; Países Bajos
dc.description.fil
Fil: Neira d'Angelo, M. Fernanda. Eindhoven University of Technology; Países Bajos
dc.journal.title
Journal of Membrane Science
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.memsci.2023.121613
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