Gas separation performance of carbon dioxide-selective poly(vinyl alcohol) – ionic liquid blend membranes: The effect of temperature, feed pressure and humidity

Klepić, Martina; Jansen, Johannes C.; Fuoco, Alessio; Izák, Pavel; Petrusová, Zuzana; Vankelecom, Ivo F.J.; Randová, Alena; Fíla, Vlastimil; Lanč, Marek; Friess, Karel

doi:10.1016/j.seppur.2021.118812

Cited by 25 publications

(9 citation statements)

References 49 publications

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“…The gas separation performance of the I-SPN 95 /IL n ionogels for CO 2 /N 2 and CO 2 /CH 4 is similar to those of ionogels or IL-containing polymeric membranes. 12,50,55–61 The resulting performance is near the 2008 upper bound, 62 indicating that the I-SPN 95 /IL n ionogels have satisfactory gas separation performance. Since the I-SPN 95 /IL 70 ionogel has the best self-healing ability and gas separation performance, the rest of the study is focused on this particular combination.…”

Section: Resultsmentioning

confidence: 85%

Spontaneous self-healing ionogels for efficient and reliable carbon dioxide separation

Chen

et al. 2022

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 85%

Spontaneous self-healing ionogels for efficient and reliable carbon dioxide separation

Chen

et al. 2022

J. Mater. Chem. A

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“…Comparison of the separation performance of pure CA, CA-IL40 and CA-IL40-e membranes field on Robeson Upper bound for (a) CO 2 /N 2 and (b) for CO 2 /CH 4 …”

Section: Resultsmentioning

confidence: 99%

Electro-casting for Superior Gas Separation Membrane Performance and Manufacturing

Alkandari,

Castro-Dominguez

2023

ACS Appl. Mater. Interfaces

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Gas separation polymer membranes play a pivotal role in various industrial processes including carbon capture and hydrogen production. However, the inherent trade-off between permeability and selectivity coupled with challenges in membrane manufacturing has hindered their widespread industrial deployment. To address the permselectivity challenges, researchers have explored increasingly complex polymers, composite systems, and other materials. In this study, we introduce a novel membrane manufacturing technique called “electro-casting” that not only enables efficient membrane fabrication but also enhances the trade-off of traditional polymer-based membranes. We fabricated cellulose acetate (CA) membranes embedded with 1-ethyl-3-methyl imidazolium via electro-casting and performed a comparative analysis of structural, morphological, and gas transport characteristics against membranes made via conventional casting techniques. We discovered that electro-casted membranes exhibited a unique crystalline structure, surface topology that induced a remarkable 200% improvement in CO 2 /N 2 selectivity and a 110% increase in CO 2 /CH 4 selectivity. The electric field generated during the manufacturing process played a crucial role in altering the supramolecular structure of the polymer, thereby increasing the separation properties of the membranes as well as their thermal and mechanical features. Electro-casting induced a polymer crystallization effect that disrupted the permeability-selectivity trade-off observed in conventional membranes, while producing highly stable membranes. Moreover, the simplicity of this manufacturing method and its significant impact on membrane properties have the potential to accelerate the deployment of gas separation membranes, facilitating the transition toward a NetZero chemical industry.

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“…The results are shown in Figure 11. Because of increased polymer chain movements, the CO 2 /CH 4 ideal selectivity decreases significantly with increasing temperature 75–77 . Because of increased polymer chain motions, the CO 2 permeability rises from 270.2 to 286.5 Barrer, and the CH 4 permeability increases from 9.8 to 13.2 Barrer at a fixed pressure of 6 bar with 20% loading and an operating temperature of 30 to 50°C.…”

Section: Resultsmentioning

confidence: 99%

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

Fakoori

Azdarpour

Honarvar

2022

Asia-Pacific J Chem Eng

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In the present paper, the gas transport characteristics of amine-functionalized MIL-53 metal-organic frameworks (MOFs) integrated thin-film nanocomposite (TFN) Pebax 2533 membranes dip-coated over a polysulfone (PSF) layer were studied. Various characterization methods were used to investigate the impact of ligand functionalization by NH 2 on the characteristics of the generated TFN membranes and their gas transport properties, including TGA, FESEM, BET, gas adsorption tests, and a series of CO 2 /CH 4 mixed gas separation tests. According to the FESEM pictures, the NH 2 -MIL 53(Al) particles were well distributed in the TFN membranes, with no apparent agglomeration, The gas adsorption experiment of NH 2 -MIL 53(Al) particles showed that they adsorb CO 2 selectively. The incorporation of NH 2 -MIL 53(Al) into TFN membranes led to improved CO 2 /CH 4 selectivity and increased gas permeability. In addition, CO 2 /CH 4 selectivity and CO 2 permeability of the CO 2 /CH 4 mixed gas were enhanced from 11.05 to 26.55 and from 111.6 to 260.2 Barrer, respectively, when NH 2 -MIL 53(Al) 20 wt% was added to the TFN membrane. In the CO 2 /CH 4 mixed gas experiment, increasing the temperature from 30 to 50 C increased the permeability of both CH 4 and CO 2 while decreasing the CO 2 /CH 4 selectivity. Furthermore, the performance of the prepared membranes was assessed at different feed pressures ranging from 4 to 8 bar. As the feed pressure increased, the CO 2 /CH 4 separation improved. Also, with pure gas, the increase in NH 2 -MIL53(Al) loading resulted in lower diffusivity selectivity amounts for the TFN membrane than for the pristine TFN, and solubility selectivity was enhanced from 5 to 20 wt% and was reduced to 25 and 30 wt% in the TFN, respectively. In the present study, the best results were obtained at 6 bar pressure, 30 C temperature, and 20 wt% loading of NH 2 -MIL53(Al).

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Gas separation performance of carbon dioxide-selective poly(vinyl alcohol) – ionic liquid blend membranes: The effect of temperature, feed pressure and humidity

Cited by 25 publications

References 49 publications

Spontaneous self-healing ionogels for efficient and reliable carbon dioxide separation

Spontaneous self-healing ionogels for efficient and reliable carbon dioxide separation

Electro-casting for Superior Gas Separation Membrane Performance and Manufacturing

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation

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Gas separation performance of carbon dioxide-selective poly(vinyl alcohol) – ionic liquid blend membranes: The effect of temperature, feed pressure and humidity

Cited by 25 publications

References 49 publications

Spontaneous self-healing ionogels for efficient and reliable carbon dioxide separation

Spontaneous self-healing ionogels for efficient and reliable carbon dioxide separation

Electro-casting for Superior Gas Separation Membrane Performance and Manufacturing

Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO2/CH4 mixed gas separation

Contact Info

Product

Resources

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Performance of amine‐functionalized MIL‐53 incorporated thin‐film nanocomposite Pebax membranes for CO₂/CH₄ mixed gas separation