A novel semi-mobile carrier facilitated transport membrane containing aniline/poly (ether-block-amide) for CO2/N2 separation: Molecular simulation and experimental study

Kojabad, Mahdi Elyasi; Babaluo, Ali Akbar; Tavakoli, Akram

doi:10.1016/j.seppur.2021.118494

Cited by 28 publications

(8 citation statements)

References 46 publications

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“…Kojabad et al [122] explored a new type of FTM in which aniline molecules were incorporated into the poly (ether-block-amide) (Pebax) matrix as the semimobile carrier. Aniline molecules play a vital role in removing the trade-off limit, so that in anilinecontaining membranes, permeability and selectivity were promoted concurrently.…”

Section: Facilitated Transport Membranes (Ftms)mentioning

confidence: 99%

Recent Advances of Polymeric Membranes in Tackling Plasticization and Aging for Practical Industrial CO2/CH4 Applications—A Review

et al. 2022

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Membranes are a promising technology for bulk CO2 separation from natural gas mixtures due to their numerous advantages. Despite the numerous fundamental studies on creating better quality membrane efficiency, scaling up the research work for field testing requires huge efforts. The challenge is to ensure the stability of the membrane throughout the operation while maintaining its high performance. This review addresses the key challenges in the application of polymeric technology for CO2 separation, focusing on plasticization and aging. A brief introduction to the properties and limitations of the current commercial polymeric membrane is first deliberated. The effect of each plasticizer component in natural gas towards membrane performance and the relationship between operating conditions and the membrane efficiency are discussed in this review. The recent technological advancements and techniques to overcome the plasticization and aging issues covering polymer modification, high free-volume polymers, polymer blending and facilitated transport membranes (FTMs) have been highlighted. We also give our perspectives on a few main features of research related to polymeric membranes and the way forwards. Upcoming research must emphasize mixed gas with CO2 including minor condensable contaminants as per real natural gas, to determine the competitive sorption effect on CO2 permeability and membrane selectivity. The effects of pore blocking, plasticization and aging should be given particular attention to cater for large-scale applications.

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Section: Facilitated Transport Membranes (Ftms)mentioning

confidence: 99%

Recent Advances of Polymeric Membranes in Tackling Plasticization and Aging for Practical Industrial CO2/CH4 Applications—A Review

et al. 2022

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“…The occurrence of hydrogen bonding in the MMMs leads to improved mechanical properties (e.g., higher Young’s modulus), as reported for the aniline-loaded membranes [ 7 ], for MMMs containing ImGO sheets [ 49 ], for Pebax/ZnCo 2 O 4 [ 28 ], and for Pebax/[Hmim][NTf 2 ]@LDHN MMMs [ 86 ]. Therefore, an increased Young’s modulus is recognized as an indicator of a homogenous dispersion of the fillers in the polymer matrix [ 86 ].…”

Section: Main Issues In Mmms Developmentmentioning

confidence: 77%

“…Polymer electrolyte membranes were prepared by incorporating anionic surfactants such as Calcium lignosulfonate (CaLS) into Pebax 1657 [ 103 ] or KBF 4 into Pebax 5513 [ 104 ]. Aniline molecules were added to the Pebax matrix as semi-mobile carriers for CO 2 [ 7 ].…”

Section: Materials For the Analysed Mmmsmentioning

confidence: 99%

“…Molecular simulation indicates that aniline molecules can move freely between polymer chains with a high diffusion coefficient, thus enabling the transport of CO 2 molecules through ‘two hopping and vehicle’ mechanisms. Therefore, compared to the neat membrane, those loaded with aniline show a CO 2 diffusivity that is increased by 7.5 times [ 7 ].…”

Section: Gas Separation Performancementioning

confidence: 99%

“…Compared with pure Pebax membrane, the separation performance (permeability and selectivity) was increased following the loading of different fillers. In different studies, the MMMs’ performance exceeded the 2008 Robeson’ upper bound [ 7 , 29 , 36 , 38 , 49 , 51 , 52 , 53 , 60 , 69 , 86 , 88 , 94 ].…”

Section: Gas Separation Performancementioning

confidence: 99%

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A Review of the Recent Progress in the Development of Nanocomposites Based on Poly(ether-block-amide) Copolymers as Membranes for CO2 Separation

Clarizia

Bernardo

2021

Polymers

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An inspiring challenge for membrane scientists is to exceed the current materials’ performance while keeping the intrinsic processability of the polymers. Nanocomposites, as mixed-matrix membranes, represent a practicable response to this strongly felt need, since they combine the superior properties of inorganic fillers with the easy handling of the polymers. In the global strategy of containing the greenhouse effect by pursuing a model of sustainable growth, separations involving CO2 are some of the most pressing topics due to their implications in flue gas emission and natural gas upgrading. For this purpose, Pebax copolymers are being actively studied by virtue of a macromolecular structure that comprises specific groups that are capable of interacting with CO2, facilitating its transport with respect to other gas species. Interestingly, these copolymers show a high versatility in the incorporation of nanofillers, as proved by the large number of papers describing nanocomposite membranes based on Pebax for the separation of CO2. Since the field is advancing fast, this review will focus on the most recent progress (from the last 5 years), in order to provide the most up-to-date overview in this area. The most recent approaches for developing Pebax-based mixed-matrix membranes will be discussed, evidencing the most promising filler materials and analyzing the key-factors and the main aspects that are relevant in terms of achieving the best effectiveness of these multifaceted membranes for the development of innovative devices.

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Enhancement of CO₂ separation efficiency in mixed matrix membranes through zinc ion modified g‐C₃N₄ nanosheets

Sun,

Zhu,

Zhu

et al. 2024

J of Applied Polymer Sci

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This study employed modified graphitic carbon nitride (g‐C3N4) nanosheets and polyether block amide (Pebax) to prepare mixed matrix membranes (MMMs) aiming to enhance CO2 separation efficiency. Through sulfonation and zinc ion (Zn2+) modification of g‐C3N4 nanosheets, high Zn2+ loaded nanofillers (SCN‐Zn2+) were synthesized. Compared to g‐C3N4, MMMs with SCN‐Zn2+ as nanofiller showed a CO2 permeance of 462 Barrer as well as the CO2/N2 selectivity of 47.5 at the feed gas pressure of 2 bar, which surpassed the 2008 Robeson upper bound. Additionally, the Pebax/SCN‐Zn2+(30) membrane was subjected to continuous gas permeability experiments for 70 h and showed good stability. The results showed that SCN‐Zn2+ nanosheets played an important role in enhancing the gas selectivity of the membranes. SEM confirmed that the SCN‐Zn2+ nanosheets had good compatibility with the Pebax substrate and the presence of hydrophilic sulfonic acid groups effectively suppressed the interfacial defects. The increase in the free volume fraction of the membranes as well as the solubility and diffusion coefficient suggested that the introduction of g‐C3N4 nanosheets led to more tortuous gas transport paths, which enhanced the permeability and selectivity of CO2.

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A novel semi-mobile carrier facilitated transport membrane containing aniline/poly (ether-block-amide) for CO2/N2 separation: Molecular simulation and experimental study

Cited by 28 publications

References 46 publications

Recent Advances of Polymeric Membranes in Tackling Plasticization and Aging for Practical Industrial CO2/CH4 Applications—A Review

Recent Advances of Polymeric Membranes in Tackling Plasticization and Aging for Practical Industrial CO2/CH4 Applications—A Review

A Review of the Recent Progress in the Development of Nanocomposites Based on Poly(ether-block-amide) Copolymers as Membranes for CO2 Separation

Enhancement of CO₂ separation efficiency in mixed matrix membranes through zinc ion modified g‐C₃N₄ nanosheets

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A novel semi-mobile carrier facilitated transport membrane containing aniline/poly (ether-block-amide) for CO2/N2 separation: Molecular simulation and experimental study

Cited by 28 publications

References 46 publications

Recent Advances of Polymeric Membranes in Tackling Plasticization and Aging for Practical Industrial CO2/CH4 Applications—A Review

Recent Advances of Polymeric Membranes in Tackling Plasticization and Aging for Practical Industrial CO2/CH4 Applications—A Review

A Review of the Recent Progress in the Development of Nanocomposites Based on Poly(ether-block-amide) Copolymers as Membranes for CO2 Separation

Enhancement of CO2 separation efficiency in mixed matrix membranes through zinc ion modified g‐C3N4 nanosheets

Contact Info

Product

Resources

About

Enhancement of CO₂ separation efficiency in mixed matrix membranes through zinc ion modified g‐C₃N₄ nanosheets