Nanocomposite MFI–ceramic hollow fibre membranes via pore-plugging synthesis: Prospects for xylene isomer separation

Daramola, Michael O.; Burger, Andries J.; Pera‐Titus, Marc; Giroir‐Fendler, A.; Miachon, S.; Lorenzen, L.; Dalmon, J.A.

doi:10.1016/j.memsci.2009.03.028

Cited by 40 publications

(27 citation statements)

References 33 publications

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“…The formation of the nanocomposite architecture could be attributed to the insitu heterogeneous nucleation during the synthesis. As described elsewhere (Li et al 2008;Daramola et al 2009Daramola et al , 2015, the HS nanocrystals (could be called seeds as well) formed in situ during the first stage of the PPH (before interruption) of the synthesis promote heterogenous nucleation and growth during the second stage (after interruption) of the synthesis. Eventually, the heterogenous nucleation during the postinterruption stage enhanced the growth into bigger crystals.…”

Section: Characterization Of the As-prepared Nanocomposite Hs/ceramicmentioning

confidence: 96%

Nanocomposite sodalite/ceramic membrane for pre-combustion CO2 capture: synthesis and morphological characterization

Daramola

Oloye

Yaya

2016

Int J Coal Sci Technol

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Carbon capture and storage (CCS) is amongst the possible options to reduce CO 2 emission. In the application of CCS, CO 2 capture techniques such as adsorption and membrane system have been proposed due to less energy requirement and environmental benign than the absorption process. However, membrane system has drawbacks such as poor membrane reproducibility, scale-up difficulty and high cost of the membrane supports. In this study synthesis and characterization of nanocomposite sodalite (HS)/ceramic membrane via ''pore-plugging'' hydrothermal synthesis (PPH) protocol for precombustion CO 2 capture is reported. The morphology and crystallinity of the as-prepared membranes were checked with scanning electron microscopy and X-ray diffraction. Surface chemistry of the membrane was examined with Fourier Transform Infrared spectroscopy. In nanocomposite architecture membranes, zeolite crystals are embedded within the pores of the supports instead of forming thin-film layers of the zeolite crystals on the surface of the supports. Compared to the conventional in situ direct hydrothermal synthesis, membranes obtained from PPH possess higher mechanical strength and thermal stability. In addition, defect control with nanocomposite architecture membranes is possible because the zeolite crystals are embedded within the pores of the support, thereby limiting the maximum defect size to the pore size of the support. Furthermore, the nanocomposite architecture nature of the membranes safeguards the membrane from shocks or abrasion that could promote formation of defects. The aforementioned advantages of the nanocomposite architecture membranes could be beneficial in developing high performance and cost-effective membrane materials for pre-combustion CO 2 capture.

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Section: Characterization Of the As-prepared Nanocomposite Hs/ceramicmentioning

confidence: 96%

Nanocomposite sodalite/ceramic membrane for pre-combustion CO2 capture: synthesis and morphological characterization

Daramola

Oloye

Yaya

2016

Int J Coal Sci Technol

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“…Nanocomposite MFI-alumina membranes have shown their potentials in several gas and vapour separations (e.g., xylene isomer separation [25,26] and ammonia recovery [27]), and combined with a catalyst in membrane reactors (e.g., i-butane dehydrogenation [28,29] and xylene isomerization [25]). Besides, this nanocomposite configuration has also been applied to the synthesis of other membrane materials, such as Pd-ceramic [30] and MCM-41 ("LUS")-alumina [31] membranes, these latter showing high membrane quality together with high gas and water permeation performance and high structural stability.…”

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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“…In a parallel study [163], the authors managed to synthesize higher quality membranes in terms of selectivity (p-xylene/o-xylene > 400). Accordingly, the membrane reactor outperformed the conventional one at the applied reaction temperature of 473 K. Furthermore, the same authors employed nanocomposite MFI-ceramic hollow fibre membranes for the xylene isomer separation, demonstrating nearly 30% p-xylene flux increase and reasonable selectivity [227]. Finally, the utilization of hollow fibre membranes in zeolite membrane reactors for the isomerization of xylene could offer the essential increase in the p-xylene permeation flux in order to overcome one of the considerable limitations of this reactor configuration in the competition with the existing technologies.…”

Section: Product Removal: Enhanced Selectivity By Displacing the Chemmentioning

confidence: 99%

Zeolite Catalysis

2016

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Nanocomposite MFI–ceramic hollow fibre membranes via pore-plugging synthesis: Prospects for xylene isomer separation

Cited by 40 publications

References 33 publications

Nanocomposite sodalite/ceramic membrane for pre-combustion CO2 capture: synthesis and morphological characterization

Nanocomposite sodalite/ceramic membrane for pre-combustion CO2 capture: synthesis and morphological characterization

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

Zeolite Catalysis

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Nanocomposite MFI–ceramic hollow fibre membranes via pore-plugging synthesis: Prospects for xylene isomer separation

Cited by 40 publications

References 33 publications

Nanocomposite sodalite/ceramic membrane for pre-combustion CO2 capture: synthesis and morphological characterization

Nanocomposite sodalite/ceramic membrane for pre-combustion CO2 capture: synthesis and morphological characterization

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

Zeolite Catalysis

Contact Info

Product

Resources

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