Facilitated transport of CO2 through Co(II)-S-EPDM ionomer membrane

Hosseinkhani, Omolbanin; Kargari, Ali; Sanaeepur, Hamidreza

doi:10.1016/j.memsci.2014.06.021

Cited by 31 publications

(8 citation statements)

References 69 publications

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“…Since CO 2 /N 2 separation is also an industrially important problem which we are addressing in our lab, we thought it would be interesting to see how the CoPc‐PSf membranes perform on this separation as well. The work of Hosseinkhani et al, which argues a facilitated transport of CO 2 transport through incorporation of a cobalt complex (cobalt acetate tetrahydrate) has been discussed earlier. The reversible binding ability is explained by four‐ or five‐coordinated square complex formation.…”

Section: Resultsmentioning

confidence: 98%

“…Affinity‐based additives have shown promise in the case of CO 2 /N 2 separations as well. Hosseinkhani et al, used cobalt acetate tetrahydrate as a carrier complex incorporated in sulfonated ethylene‐propylene‐diene terpolymer (EPDM) membranes, and reported a sevenfold increase in CO 2 permeability and a threefold increase in CO 2 /N 2 selectivity (also see Table for results with particles functionalised with 4‐Aminophenazone)…”

Section: Literaturementioning

confidence: 99%

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Some mechanistic insights into the action of facilitating agents on gas permeation through glassy polymeric membranes

Midda

Suresh

2017

AIChE Journal

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Incorporation of facilitating agents is one of the promising strategies being researched in recent years to cross the Robeson bounds for gas separations using polymeric membranes. The ways in which such inclusions modify the performance of membranes are not always clear. Here, we study the performance of two glassy membranes, Polyfurfuryl alcohol and Polysulfone, in O 2 /N 2 and CO 2 /N 2 separations, with Cobalt phthalocyanine in insoluble and solubilized forms as the facilitating agent. The results show that in general, three effects are important: (1) a barrier effect, (2) a facilitation effect, and (3) morphological effects on the polymer matrix due to an incompatibility between the particles and the polymer. These results provide some insight into the action of facilitating agents in soluble and insoluble form, when used as membrane additives.

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Section: Resultsmentioning

confidence: 98%

Section: Literaturementioning

confidence: 99%

Some mechanistic insights into the action of facilitating agents on gas permeation through glassy polymeric membranes

Midda

Suresh

2017

AIChE Journal

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“…1,2 Advantages including an environmentally friendly nature, ease of processability, low maintenance, and a small footprint are leading to widespread interest in gas separation processes based on polymeric membranes compared to the conventional separation technologies. [1][2][3][4][5][6][7][8][9][10] In the past decade, polyimides, especially Matrimid®5218, have been commercially used as promising membrane materials for natural gas purifi cation due to their high diff usivity selectivity and favorable chemical resistance and mechanical stability. 11,12 Many studies have been done to improve the gas separation properties of Matrimid, especially to enhance its low permeability.…”

Section: Introductionmentioning

confidence: 99%

Improved CO₂ separation performance of Matrimid®5218 membrane by addition of low molecular weight polyethylene glycol

et al. 2015

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Polyethylene glycols have received worldwide attention as a highly permeable CO2‐philic polymer in carbon dioxide separation applications. In this study, we investigated the influence of a low molecular weight polyethylene glycol (PEG 200) on physicochemical, morphological, and gas separation properties of Matrimid®5218 as a novel polymer blend. Both symmetric and asymmetric Matrimid flat sheet membranes with 0–20 wt.% PEG were prepared via a dense film‐casting method. The miscibility of blends at low PEG concentrations (3–5 wt.%) was confirmed by differential scanning calorimetry (DSC) and polarized light microscopy (PLM). Moreover, the blends were partially miscible at higher PEG concentrations (10–20 wt.%). Matrimid/PEG molecular interactions were further studied by FTIR and XRD analysis. SEM images indicated an impressive influence of PEG on the symmetric structure of Matrimid membrane. An asymmetric structure with a dense thin skin layer and a highly porous sub‐layer was observed for the blends containing 10–20 wt.% PEG. The CO2 permeability and CO2/CH4 selectivity of the best‐yield CO2‐selective blend membrane (Matrimid/PEG (95:5)) incvreased about 25% (from 7.68 to 9.62 Barrer) and 15% (from 35 to 40) compared to pure Matrimid, respectively. Furthermore studying the plasticization pressures of the membranes revealed that the more PEG content in blend the less the plasticization pressure obtained. © 2015 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…After introducing AgBF 4 into SILMs, CO permeation occurred via molecular diffusion and facilitated transport. Usually, for facilitated transport membrane, the pressure increase will induce the decrease of gas permeability due to the carrier saturation with target gas at high pressure [36,37] . However, as shown in Fig.…”

Section: Effect Of Transmembrane Pressure On the Performance Of Agbf mentioning

confidence: 99%

AgBF4/[emim][BF4] supported ionic liquid membrane for carbon monoxide/nitrogen separation

Feng

Luo

et al. 2019

Journal of Energy Chemistry

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Facilitated transport of CO2 through Co(II)-S-EPDM ionomer membrane

Cited by 31 publications

References 69 publications

Some mechanistic insights into the action of facilitating agents on gas permeation through glassy polymeric membranes

Some mechanistic insights into the action of facilitating agents on gas permeation through glassy polymeric membranes

Improved CO₂ separation performance of Matrimid®5218 membrane by addition of low molecular weight polyethylene glycol

AgBF4/[emim][BF4] supported ionic liquid membrane for carbon monoxide/nitrogen separation

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Facilitated transport of CO2 through Co(II)-S-EPDM ionomer membrane

Cited by 31 publications

References 69 publications

Some mechanistic insights into the action of facilitating agents on gas permeation through glassy polymeric membranes

Some mechanistic insights into the action of facilitating agents on gas permeation through glassy polymeric membranes

Improved CO2 separation performance of Matrimid®5218 membrane by addition of low molecular weight polyethylene glycol

AgBF4/[emim][BF4] supported ionic liquid membrane for carbon monoxide/nitrogen separation

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Product

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Improved CO₂ separation performance of Matrimid®5218 membrane by addition of low molecular weight polyethylene glycol