Effect of fixed carbon molecular sieve (CMS) loading and various di-ethanolamine (DEA) concentrations on the performance of a mixed matrix membrane for CO<sub>2</sub>/CH<sub>4</sub> separation

Nasir, Rizwan; Mukhtar, Hilmi; Man, Zakaria; Shaharun, Maizatul Shima; Bakar, Mohamad Zailani Abu

doi:10.1039/c5ra09015f

Cited by 44 publications

(28 citation statements)

References 56 publications

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“…The casted membranes were preliminary dried for 8 h at 90°C under a vacuum condition in order to avoid a sudden heat change on the membrane which might damage the membrane morphology. In order to completely remove the solvent, the temperature were increased to 160°C as per recent cited literature …”

Section: Methodsmentioning

confidence: 99%

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO₂/CH₄ separation

Ahmad

Mukhtar

Mohshim

et al. 2016

J of Applied Polymer Sci

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Mixed matrix membranes (MMMs) embedded with functionalized SAPO-34 were successfully synthesized and characterized. Two different types of organic amino cation, namely ethylenediamine (EDA) and hexylamine (HA), were used to functionalize SAPO-34 particles prior to MMM synthesis. In this work, the effects of different functionalizing agents on the membrane morphology, pore size, and CO 2 /CH 4 gas separation properties were investigated. Surface modification of SAPO-34 was confirmed via X-ray photoemission spectroscopy (XPS) where the presence of nitrogen atom was observed for the samples functionalized with amino cations. The dispersion of EDA-functionalized SAPO-34 particles was found to have better polymer/filler interface morphology as shown by field emission scanning electron microscopy (FESEM) analysis. The gas separation performance revealed that PES containing EDAfunctionalized SAPO-34 exhibited better CO 2 /CH 4 separation performance as compared to the MMMs containing HA-functionalized SAPO-34.

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Section: Methodsmentioning

confidence: 99%

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO₂/CH₄ separation

Ahmad

Mukhtar

Mohshim

et al. 2016

J of Applied Polymer Sci

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“…This trend in permeance and selectivity is in accordance with the dual mode sorption behavior of gases in glassy polymers. 39 At lower pressure, CO 2 and CH 4 permeance in pure PSF were high as compared to composite membranes. For example, at 2 bar CO 2 permeance in PSF membrane was 20% higher than the permeance in the composite membrane with larger coating time.…”

Section: Contact Anglementioning

confidence: 97%

“…The smaller kinetic diameter of CO 2 led to the more responsive diffusivity of CO 2 into the membrane structure as compared to CH 4 . 39,40 Better permeance in PSF may be attributed to the uniform spongy porous structure observed in the morphology of pure PSF [ Figure 4 Figure 6(b) shows the CO 2 /CH 4 ideal selectivity with respect to feed pressure for developed membranes. At 10 bar, the CO 2 /CH 4 selectivity of 19.2 was obtained for pure PSF, which is in accordance with the literature reported selectivity of PSF membrane.…”

Section: Contact Anglementioning

confidence: 99%

Enhanced gas separation performance of PSF membrane after modification to PSF/PDMS composite membrane in CO₂/CH₄ separation

Suleman

Lau

Yeong

2017

J of Applied Polymer Sci

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Asymmetric polysulfone (PSF) membrane was developed and modified to PSF/polydimethylsiloxane (PSF/PDMS) composite membrane by dip coating technique. Effect of PDMS coating time on membrane properties was examined by scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, attenuated total reflectance-Fourier transform infrared, and water contact angle. The increase in PDMS coating time resulted in a decrement in the thermal strength of PSF membrane. Surface contact angle values revealed that increase in PDMS coating time had increased the surface hydrophobicity in membranes. CO 2 /CH 4 separation performance of membranes was evaluated, and an increase in CO 2 /CH 4 ideal selectivity was observed with the increase of PDMS coating time. At feed pressure of 10 bar, the selectivity of PSF has increased up to 65% after dip coating with PDMS for 30 min. Modification of polymeric membrane into composite membrane provided a way forward towards the enhancement of gas separation performance in polymeric membranes.

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“…Inorganic or hybrid additives (i.e. zeolites, carbon molecular sieves, metal organic frameworks or zeolitic imidazolate frameworks) have been mainly used to provide additional free fraction volume (FFV) and/or ‘sieving’ effects for increasing permeability and/or selectivity. For the CO 2 separations of interest in this work, poly(ethylene oxide) (PEO) based oligomer additives have also been reported for increasing chain mobility and decreasing PEO crystallinity …”

Section: Introductionmentioning

confidence: 99%

Pseudopeptide bioconjugate additives for CO₂ separation membranes

Solimando

Lherbier

Babin

et al. 2016

Polymer International

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1:1[ / -N -Bn-hydrazino] pseudopeptide−polymer bioconjugates were synthesized and investigated as additives in a reference gas separation membrane (Pebax ® ) for CO 2 capture. Pebax ® is a polyether block amide thermoplastic elastomer provided by Arkema and is already well known for its good performance for CO 2 separations. First, dimer and tetramer pseudopeptides were synthesized and their terminal amine was modified into a 'clickable' alkyne group in view of coupling. Second, an -azido acrylic poly(ethylene glycol)-based oligomer was obtained by single-electron transfer living radical polymerization and the two partners were coupled using copper(I) catalyzed alkyne-azide cycloaddition (CuAAC) 'click' chemistry. The pseudopeptides and their bioconjugates were then assessed as original additives in Pebax ® membranes for CO 2 /CH 4 and CO 2 /N 2 separations. The permeation data were analyzed according to the solution-diffusion model. Compared to pseudopeptides, the pseudopeptide−polymer bioconjugates enabled the membrane properties to be greatly improved with better permeability (×1.5) and a good constant selectivity for CO 2 capture. The best membrane properties were obtained with 3 eq. wt% of the tetramer-based bioconjugate with a CO 2 permeability of 194 Barrer (+46% compared to that of Pebax ® ) and constant selectivity ( CO 2 /N 2 = 44 and CO 2 /CH 4 = 13).

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Effect of fixed carbon molecular sieve (CMS) loading and various di-ethanolamine (DEA) concentrations on the performance of a mixed matrix membrane for CO₂/CH₄ separation

Abstract: Polyethersulfone (PES) as a polymer along with carbon molecular sieves (CMS) as an inorganic filler and di-ethanolamine (DEA) as the third component were used to fabricate amine mixed matrix membranes (A3Ms).

Cited by 44 publications

References 56 publications

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO₂/CH₄ separation

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO₂/CH₄ separation

Enhanced gas separation performance of PSF membrane after modification to PSF/PDMS composite membrane in CO₂/CH₄ separation

Pseudopeptide bioconjugate additives for CO₂ separation membranes

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Effect of fixed carbon molecular sieve (CMS) loading and various di-ethanolamine (DEA) concentrations on the performance of a mixed matrix membrane for CO2/CH4 separation

Abstract: Polyethersulfone (PES) as a polymer along with carbon molecular sieves (CMS) as an inorganic filler and di-ethanolamine (DEA) as the third component were used to fabricate amine mixed matrix membranes (A3Ms).

Cited by 44 publications

References 56 publications

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO2/CH4 separation

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO2/CH4 separation

Enhanced gas separation performance of PSF membrane after modification to PSF/PDMS composite membrane in CO2/CH4 separation

Pseudopeptide bioconjugate additives for CO2 separation membranes

Contact Info

Product

Resources

About

Effect of fixed carbon molecular sieve (CMS) loading and various di-ethanolamine (DEA) concentrations on the performance of a mixed matrix membrane for CO₂/CH₄ separation

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO₂/CH₄ separation

Effect of different organic amino cations on SAPO‐34 for PES/SAPO‐34 mixed matrix membranes toward CO₂/CH₄ separation

Enhanced gas separation performance of PSF membrane after modification to PSF/PDMS composite membrane in CO₂/CH₄ separation

Pseudopeptide bioconjugate additives for CO₂ separation membranes