CO2 removal from anaesthesia circuits using gas-ionic liquid membrane contactors

Martins, Carla F.; Neves, Luísa A.; Chagas, Ricardo; Ferreira, Luı́sa M.; Afonso, Carlos; Crespo, João G.; Coelhoso, Isabel M.

doi:10.1016/j.seppur.2020.116983

Cited by 15 publications

(8 citation statements)

References 133 publications

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“…The research progress of gas separation, especially CO 2 separation, has been addressed in depth. Martins, et al [ 42 ] conducted a CO 2 removal process by using a membrane contactor that is combined with a biocompatible ionic liquid (IL), cholinium lysinate, that has a high absorption capacity (5.9 mol CO 2 /kg IL). The rate of CO 2 removal and IL solution regeneration was examined in their study by changing the feed gas composition, conditions of the ionic liquid flow rate, and the relative humidity.…”

Section: Ionic Liquid Membranes (Ilms) In Gas Separation Processesmentioning

confidence: 99%

“…The rate of CO 2 removal and IL solution regeneration was examined in their study by changing the feed gas composition, conditions of the ionic liquid flow rate, and the relative humidity. The results obtained from their study have shown that the proposed system is capable of removing CO 2 from anaesthetic gas circuits [ 42 ]. Shamair, et al [ 43 ] have successfully investigated the performance of a recently synthesized RTIL in SILM, theoretically, and experimentally.…”

Section: Ionic Liquid Membranes (Ilms) In Gas Separation Processesmentioning

confidence: 99%

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Key Applications and Potential Limitations of Ionic Liquid Membranes in the Gas Separation Process of CO2, CH4, N2, H2 or Mixtures of These Gases from Various Gas Streams

et al. 2020

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Heightened levels of carbon dioxide (CO2) and other greenhouse gases (GHGs) have prompted research into techniques for their capture and separation, including membrane separation, chemical looping, and cryogenic distillation. Ionic liquids, due to their negligible vapour pressure, thermal stability, and broad electrochemical stability have expanded their application in gas separations. This work provides an overview of the recent developments and applications of ionic liquid membranes (ILMs) for gas separation by focusing on the separation of carbon dioxide (CO2), methane (CH4), nitrogen (N2), hydrogen (H2), or mixtures of these gases from various gas streams. The three general types of ILMs, such as supported ionic liquid membranes (SILMs), ionic liquid polymeric membranes (ILPMs), and ionic liquid mixed-matrix membranes (ILMMMs) for the separation of various mixed gas systems, are discussed in detail. Furthermore, issues, challenges, computational studies and future perspectives for ILMs are also considered. The results of the analysis show that SILMs, ILPMs, and the ILMMs are very promising membranes that have great potential in gas separation processes. They offer a wide range of permeabilities and selectivities for CO2, CH4, N2, H2 or mixtures of these gases. In addition, a comparison was made based on the selectivity and permeability of SILMs, ILPMs, and ILMMMs for CO2/CH4 separation based on a Robeson’s upper bound curves.

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Section: Ionic Liquid Membranes (Ilms) In Gas Separation Processesmentioning

confidence: 99%

Section: Ionic Liquid Membranes (Ilms) In Gas Separation Processesmentioning

confidence: 99%

Key Applications and Potential Limitations of Ionic Liquid Membranes in the Gas Separation Process of CO2, CH4, N2, H2 or Mixtures of These Gases from Various Gas Streams

et al. 2020

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“…Fortunately, the viscosity of ILs could be reduced effectively by mixing with water 10 . Many studies focusing on CO 2 absorption in ILs aqueous solution have been launched 19–21 . For instance, the performance of CO 2 absorption into 1‐butyl‐3‐methylimidazoleglycine ([C 4 mim][Gly]) aqueous solution utilizing a double stirred‐cell absorber was investigated by Wu et al, 21 and the effects of absorption temperature, absorbent concentration and the content of CO 2 at inlet on CO 2 absorption were explored, meanwhile, the correlation of the second‐order rate constant was also obtained.…”

Section: Introductionmentioning

confidence: 99%

“…10 Many studies focusing on CO 2 absorption in ILs aqueous solution have been launched. [19][20][21] For instance, the performance of CO 2 absorption into 1-butyl-3-methylimidazoleglycine ([C 4 mim]…”

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confidence: 99%

Performance and pressure drop ofCO₂absorption into task‐specific and halide‐free ionic liquids in a microchannel

Zhu

et al. 2022

AIChE Journal

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The gas–liquid two‐phase flow pattern, absorption rate and pressure drop of CO2 absorbed into the aqueous solution of the task‐specific ionic liquids (1‐aminopropyl‐3‐methylimidazole tetrafluoroborate [Apmim][BF4] and 1‐hydroxyethyl‐3‐methylimidazole tetrafluoroborate [OHemim][BF4]) and halide‐free ionic liquid 1‐butyl‐3‐methylimidazolium methylsulfate [Bmim][CH3SO4] were investigated in a microreactor. The absorption mechanism of the three ionic liquids was analyzed employing the 13C NMR spectroscopy. The [Apmim][BF4] was found to have the best ability of CO2 capture compared with the other two ionic liquids, as chemical absorption occurred between [Apmim][BF4] and CO2, while only physical absorption took place between [OHemim][BF4]/[Bmim][CH3SO4] and CO2. The sequence of CO2 absorption rate in three ionic liquids aqueous solutions is: [Apmim][BF4] > [Bmim][CH3SO4] > [OHemim][BF4]. Furthermore, the effects of gas–liquid flow rate and ionic liquids concentration on CO2 absorption rate and pressure drop were studied, the pressure drop models based on various flow patterns were proposed.

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“…Membrane processes have been used for protein crystallisation [46,[145][146][147], and membrane contactors have been used for CO 2 removal from anaesthesia gases [148][149][150] and as blood oxygenators [151][152][153].…”

Section: Applications Of Membranes In Healthmentioning

confidence: 99%

Overview of Membrane Science and Technology in Portugal

et al. 2022

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Membrane research in Portugal is aligned with global concerns and expectations for sustainable social development, thus progressively focusing on the use of natural resources and renewable energy. This review begins by addressing the pioneer work on membrane science and technology in Portugal by the research groups of Instituto Superior Técnico—Universidade de Lisboa (IST), NOVA School of Science and Technology—Universidade Nova de Lisboa (FCT NOVA) and Faculdade de Engenharia—Universidade do Porto (FEUP) aiming to provide an historical perspective on the topic. Then, an overview of the trends and challenges in membrane processes and materials, mostly in the last five years, involving Portuguese researchers, is presented as a contribution to a more sustainable water–energy–material–food nexus.

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CO2 removal from anaesthesia circuits using gas-ionic liquid membrane contactors

Abstract: Dissertation for obtaining the degree of Doctor of Philosophy in Chemical and Biochemical Engineering Dissertação para obtenção do Grau de Mestre em [Engenharia Informática]CO2 removal from anaesthesia circuits using gas-ionic liquid membrane contactors

Cited by 15 publications

References 133 publications

Key Applications and Potential Limitations of Ionic Liquid Membranes in the Gas Separation Process of CO2, CH4, N2, H2 or Mixtures of These Gases from Various Gas Streams

Key Applications and Potential Limitations of Ionic Liquid Membranes in the Gas Separation Process of CO2, CH4, N2, H2 or Mixtures of These Gases from Various Gas Streams

Performance and pressure drop ofCO₂absorption into task‐specific and halide‐free ionic liquids in a microchannel

Overview of Membrane Science and Technology in Portugal

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CO2 removal from anaesthesia circuits using gas-ionic liquid membrane contactors

Abstract: Dissertation for obtaining the degree of Doctor of Philosophy in Chemical and Biochemical Engineering Dissertação para obtenção do Grau de Mestre em [Engenharia Informática]CO2 removal from anaesthesia circuits using gas-ionic liquid membrane contactors

Cited by 15 publications

References 133 publications

Key Applications and Potential Limitations of Ionic Liquid Membranes in the Gas Separation Process of CO2, CH4, N2, H2 or Mixtures of These Gases from Various Gas Streams

Key Applications and Potential Limitations of Ionic Liquid Membranes in the Gas Separation Process of CO2, CH4, N2, H2 or Mixtures of These Gases from Various Gas Streams

Performance and pressure drop ofCO2absorption into task‐specific and halide‐free ionic liquids in a microchannel

Overview of Membrane Science and Technology in Portugal

Contact Info

Product

Resources

About

Performance and pressure drop ofCO₂absorption into task‐specific and halide‐free ionic liquids in a microchannel