Zeolite membranes – Recent developments and progress

Caro, Juergen; Noack, Manfred

doi:10.1016/j.micromeso.2008.03.008

Cited by 679 publications

(412 citation statements)

References 207 publications

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“…Zeolite membranes supported on ceramic supports have been largely proposed as promising candidates for gas separation and pervaporation applications [1][2][3][4]. Among these membranes, two families are particularly interesting for gas separation: -MFI-type membranes for high-temperature separation of linear and branched paraffin isomers by molecular-sieving [5][6][7][8], -FAU-type membranes for CO 2 separation in pre-and post-combustion applications, as well as in the purification of natural gas and biogas.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO₂Capture

Rouleau¹,

Pirngruber²,

Guillou³

et al. 2009

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Membranes nanocomposites MFI-alumine et FAU-alumine : synthèse, caractérisation & application à la séparation de paraffines et à la capture du CO 2 -Dans ce travail, nous rapportons la préparation de membranes nanocomposites MFI-alumine et FAU-alumine de haute surface (24-cm 2 ), thermiquement et mécaniquement résistantes, par synthèse de zéolithe dans les macropores de supports tubulaires en alumine α. Les membranes MFI ont été préparées à partir de mélange de précurseurs de type solution claire de manière à facilement pénétrer dans les pores du support. Les membranes MFI ont été évaluées en séparation de mélanges n-/i-butane. La fiabilité des synthèses a été améliorée par une agitation modérée. Les membranes MFI les plus sélectives ont été obtenues pour des supports avec des tailles moyennes de pores de 0,2 et 0,8 μm. L'épaisseur effective de MFI a pu être réduite à moins de 10 μm par imprégnation du support avec de l'eau avant la synthèse et par dilution du mélange de synthèse. La meilleure membrane MFI offre un excellent compromis entre sélectivité et perméance à 448 K, avec des facteurs de séparation pour les mélanges n-butane/i-butane jusqu'à 18 et des perméances du n-butane en mélange aussi élevées que 0,7 μmol⋅s -1 ⋅m -2 ⋅Pa -1 . Par ailleurs, une nouvelle architecture de membrane nanocomposite FAU a été obtenue par une voie de synthèse originale incluant un ensemencement in situ à partir d'un mélange refroidi de précurseur de type gel, suivi de croissance de la FAU par synthèse hydrothermale en deux étapes avec une solution claire de faible viscosité. Cette nouvelle membrane a montré des performances intéressantes en séparation de mélange équimolaire CO 2 /N 2 à 323 K, avec des facteurs de séparation CO 2 /N 2 et des perméances de CO 2 en mélange jusqu'à 12 et 0,4 μmol⋅s -1 ⋅m -2 ⋅Pa -1 , respectivement.Abstract -Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO 2 Capture -In this work, we report the preparation of thermally and mechanically resistant high-surface (24-cm 2 ) nanocomposite MFI-alumina and FAUalumina membranes by pore-plugging synthesis inside the macropores of α-alumina multilayered

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Section: Introductionmentioning

confidence: 99%

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO₂Capture

Rouleau¹,

Pirngruber²,

Guillou³

et al. 2009

Oil & Gas Science and Technology - Rev. IFP

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“…A low defect zeolite shell was deposited on the beads using procedures borrowed from zeolite membrane preparation [27][28][29]. The catalyst beads were seeded with a layer of Sil-1 zeolite seeds prepared according to synthesis procedure reported in previous works [30][31][32].…”

Section: Preparation Of Sil-1 Zeolite Shellmentioning

confidence: 99%

Preparation of core (Ni base)–shell (Silicalite-1) catalysts and their application for alkali resistance in direct internal reforming molten carbonate fuel cell

Zhang

et al. 2012

Journal of Power Sources

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“…Capillary condensation occurs in smaller pores at vapor pressure P lower than the saturated vapor pressure P s . Since the condensed vapour can be assumed to block the permeation of the non-condensable gas, it is possible to estimate the pore size distribution by measuring the permeation rate as a function of the vapour pressure of the condensable gas in the feed stream [18,19]. The vapour separation tests were performed in the setup schematized in Fig.…”

Section: à10mentioning

confidence: 99%

Zeolite Beta membranes for the separation of hexane isomers

Bárcia

Ferreira

Gascón

et al. 2010

Microporous and Mesoporous Materials

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a b s t r a c tThe preparation of a-alumina supported zeolite Beta membranes was successfully achieved and sped up by exploring combinations of three seeding techniques and three synthetic methods. The surface of the membranes was completely covered by well intergrown crystals; the thickness of the zeolite layers ranged from 2 to 6 lm depending on the synthesis method used. The quality of the membranes was tested by means of pervaporation of ethanol/1,3,5-triisopropylbenzene (TIPB) mixtures together with permporometry experiments. The performance in the vapour separation of quaternary equimolar mixtures of nhexane (nHEX), 3-methylpentane (3MP), 2,3-dimethylbutane (23DMB) and 2,2-dimethylbutane (22DMB) in the range 343-443 K showed that permeate flux decreases as the branching degree increases following the order: nHEX ) 3MP > 23DMB > 22DMB. In the retentate, the fractions of monobranched and normal hexane decrease while the concentration of dibranched isomers is increased compared to the feed composition. The influence of the temperature in the permeation fluxes indicates the existence of an activated transport mechanism which favours the permeation of more nHEX and 3MP with regard to their dibranched isomers. The octane number (ON) of the quaternary mixture was enhanced up to 5 points with the best synthesized membrane.

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Zeolite membranes – Recent developments and progress

Cited by 679 publications

References 207 publications

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO₂Capture

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO₂Capture

Preparation of core (Ni base)–shell (Silicalite-1) catalysts and their application for alkali resistance in direct internal reforming molten carbonate fuel cell

Zeolite Beta membranes for the separation of hexane isomers

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Zeolite membranes – Recent developments and progress

Cited by 679 publications

References 207 publications

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO2Capture

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO2Capture

Preparation of core (Ni base)–shell (Silicalite-1) catalysts and their application for alkali resistance in direct internal reforming molten carbonate fuel cell

Zeolite Beta membranes for the separation of hexane isomers

Contact Info

Product

Resources

About

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO₂Capture

Nanocomposite MFI-alumina and FAU-alumina Membranes: Synthesis, Characterization and Application to Paraffin Separation and CO₂Capture