A review of recent trends and emerging perspectives of ionic liquid membranes for CO2 separation

Solangi, Nadeem Hussain; Anjum, Amna; Tanjung, Faisal Amri; Mazari, Shaukat Ali; Mubarak, Nabisab Mujawar

doi:10.1016/j.jece.2021.105860

Cited by 64 publications

(34 citation statements)

References 324 publications

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“…ILs possessing significant characteristics, such as negligible volatility, high thermal stability and tunable physicochemical properties, have been demonstrated to effectively absorb CO 2 [ 5 ]. The combination of more stable ILs with reactive alkanolamines, known as hybrid solvents, has demonstrated better CO 2 absorption and fewer absorbent losses as compared to alkanolamines alone [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-Butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)

et al. 2022

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This paper investigated the solubility of carbon dioxide (CO2) in an aqueous solution of monoethanolamine (MEA) and 1-butyl-3-methylimidazolium dibutylphosphate ((BMIM)(DBP)) ionic liquid (IL) hybrid solvents. Aqueous solutions of MEA-(BMIM)(DBP) hybrid solvents containing different concentrations of (BMIM)(DBP) were prepared to exploit the amine’s reactive nature, combined with the IL’s non-volatile nature for CO2 absorption. Response surface methodology (RSM) based on central composite design (CCD) was used to design the CO2 solubility experiments and to investigate the effects of three independent factors on the solubility of CO2 in the aqueous MEA-(BMIM)(DBP) hybrid solvent. The three independent factors were the concentration of (BMIM)(DBP) (0–20 wt.%), temperature (30 °C–60 °C) and pressure of CO2 (2–30 bar). The experimental data were fitted to a quadratic model with a coefficient of determination (R2) value of 0.9791. The accuracy of the developed model was confirmed through additional experiments where the experimental values were found to be within the 95% confidence interval. From the RSM-generated model, the optimum conditions for CO2 absorption in aqueous 30 wt% MEA-(BMIM)(DBP) were 20 wt% of (BMIM)(DBP), a temperature of 41.1 °C and a pressure of 30 bar.

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Section: Introductionmentioning

confidence: 99%

Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-Butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)

et al. 2022

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“…Such nanotraps not only offer a facile and efficient approach to enhance the adsorption performance of a cationic polymer towards Cr 2 O 7 2− by simple exchange of the counter anion, but they also pave the way for the development of cationic polymeric nanotraps as a new type of adsorbent for wastewater treatment [6].…”

Section: The Restoration Of Water Environmentsmentioning

confidence: 99%

“…In 2017, Zhu et al [46] supported imidazoleand pyridine-based ILs on GO catalytic materials by controlling the temperatures in aqueous solution and applied them to the cycloaddition reaction of carbon dioxide. Due to the plasticization of ILs, the addition of ILs will lead to higher porosity of the membrane [6] (Figure 5). Generally, ILs are almost non-volatile and have large CO2 solubilities.…”

Section: Ils Promote the Separation Of Co 2 From Go Composite Membran...mentioning

confidence: 99%

Recent Advances in Ionic Liquids and Ionic Liquid-Functionalized Graphene: Catalytic Application and Environmental Remediation

Han

Bai

Zhang

et al. 2022

IJERPH

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Applications of ionic liquids (ILs) for the modification physicochemical properties of porous materials have been extensively studied with respect to various applications based on the understanding and development of properties of ILs. In this review, IL–graphene composites are discussed and provided a perspective of composites of IL. IL has been used as a medium to improve the dispersibility of graphene, and the resulting composite material shows excellent performance in gas separation and catalysis during environmental treatment. The applications of ILs and IL–functionalized graphene are discussed in detail with the actual environmental issues, and the main challenges and opportunities for possible future applications are summarized.

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“…Throughout the literature, the incorporation of an IL as a third component is described with highly variable effects on membrane performance (Table S6). Due to the high solubility of CO 2 in ILs [24][25][26] and noted positive effects of ILs on membrane performance [27][28][29], we also investigated the incorporation of the IL 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, [BMIm][NTf 2 ] in the CTF/Matrimid ® MMMs (see Sections 3 and 4 in the Supplementary Materials). The introduction of the IL as a ternary component showed no improvement in permeability over the CTF/Matrimid ® system.…”

Section: Figurementioning

confidence: 99%

“…The glassy polymer Matrimid ® was chosen as a matrix due to its high CO 2 /CH 4 selectivity, thermal stability [22], and the previously proven good compatibility with CTF materials [23]. Further, studies on the effect of the ionic liquid (IL) 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, [BMIm][NTf 2 ] on membrane performance were investigated due to the high solubility of CO 2 in ILs [24][25][26] and the positive effects of ILs on membrane performance, which were reported previously [27][28][29][30]. CO 2 and CH 4 mixed-gas permeabilities and selectivities were measured for all membrane systems.…”

Section: Introductionmentioning

confidence: 97%

Biphenyl-Based Covalent Triazine Framework/Matrimid® Mixed-Matrix Membranes for CO2/CH4 Separation

et al. 2021

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Processes, such as biogas upgrading and natural gas sweetening, make CO2/CH4 separation an environmentally relevant and current topic. One way to overcome this separation issue is the application of membranes. An increase in separation efficiency can be achieved by applying mixed-matrix membranes, in which filler materials are introduced into polymer matrices. In this work, we report the covalent triazine framework CTF-biphenyl as filler material in a matrix of the glassy polyimide Matrimid®. MMMs with 8, 16, and 24 wt% of the filler material are applied for CO2/CH4 mixed-gas separation measurements. With a CTF-biphenyl loading of only 16 wt%, the CO2 permeability is more than doubled compared to the pure polymer membrane, while maintaining the high CO2/CH4 selectivity of Matrimid®.

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A review of recent trends and emerging perspectives of ionic liquid membranes for CO2 separation

Cited by 64 publications

References 324 publications

Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-Butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)

Experimental and Mathematical Modelling of Factors Influencing Carbon Dioxide Absorption into the Aqueous Solution of Monoethanolamine and 1-Butyl-3-methylimidazolium Dibutylphosphate Using Response Surface Methodology (RSM)

Recent Advances in Ionic Liquids and Ionic Liquid-Functionalized Graphene: Catalytic Application and Environmental Remediation

Biphenyl-Based Covalent Triazine Framework/Matrimid® Mixed-Matrix Membranes for CO2/CH4 Separation

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