Comprehensive experimental study of acid gases removal process by membrane-assisted gas absorption using imidazolium ionic liquids solutions absorbent

Atlaskin, Artem A.; Kryuchkov, Sergey S.; Yanbikov, Nail R.; Smorodin, Kirill A.; Petukhov, Anton N.; Trubyanov, Maxim M.; Воротынцев, В. М.; Воротынцев, И. В.

doi:10.1016/j.seppur.2020.116578

Cited by 37 publications

(27 citation statements)

References 65 publications

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“…1. The main part of the setup is stainless steel membrane module (7) with a tubular membrane on a ceramic support (6). The feed gas from cylinder (1) through valve (2) flows to a molecular sieve trap (3) where trace amounts of moisture are removed.…”

Section: Methodsmentioning

confidence: 99%

“…The feed gas from cylinder (1) through valve (2) flows to a molecular sieve trap (3) where trace amounts of moisture are removed. Dried gas is introduced to the membrane module (7). The feed gas pressure measured by a manometer was maintained in…”

Section: Methodsmentioning

confidence: 99%

“…The carbon dioxide separation represents about 80% of the total CCS cost. 7,8 The main CO 2 capture methods are precombustion, postcombustion, and oxy-combustion processes. 9,10 The postcombustion processes are used in case of conventional power plants, where CO 2 concentration in flue gas is about 10-15%, feed pressure is near atmospheric and operating temperature is usually between 313 and 348 K. 11 In case of CO 2 separation from raw natural gas or syngas, the CO 2 concentrations and pressures are higher.…”

Section: Introductionmentioning

confidence: 99%

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Feasibility study of CO₂/N₂ separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Ziobrowski

Rotkegel

2021

Greenhouse Gases

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This work presents the experimental research on feasible intensification of CO 2 /N 2 separation by utilization of the developed supported ionic liquid membranes (SILMs). SILMs were developed through specific impregnation of commercially available ceramic microfiltration/ultrafiltration membranes made by INOPOR and polydimethylsiloxane (PDMS) membranes made by Pervatech BV with chosen imidazolium based ionic liquids (ILs). The effects of operating parameters, impregnation method, and SILM thickness were analyzed. The impregnation was performed by coating and soaking methods at normal pressure and under vacuum. The proper impregnation of the ceramic support, especially in case of commercial PDMS membranes, allows to achieve two distinct, stable, highly selective separation layers. The comparison of separation efficiency of the investigated SILMs shows that SILM based on PDMS membrane prepared by coating with 1-ethyl-3-methylimidazolium acetate ([Emim][Ac]) has very good stability, high CO 2 /N 2 ideal separation factor of 152 and permeability of 2400 barrer. It was found that optimum operating conditions were feed temperature of 20°C and pressure below 200 kPa. The obtained results represent an interesting low cost alternative in the gas separation, especially when the choice of selectivity is the first priority. The comparison with literature data and upper bond Robeson correlation (2008) suggests, that applying an additional active separating IL layer and an appropriate impregnating method to the commercial ceramic membranes may result in significant improvement of separation efficiency.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Feasibility study of CO₂/N₂ separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Ziobrowski

Rotkegel

2021

Greenhouse Gases

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“…They found that the CO 2 separation efficiency decreases as PZEA > PS > EDA. Atlaskin et al (Atlaskin et al, 2020) studied a hybrid membrane-assisted gas absorption (MAGA) process for CO 2 and H 2 S removal. The efficiency for CO 2 /H 2 S separation was significantly increased by mixing imidazolium ionic liquid (ca.…”

Section: Combination Of Flue Gas Recycling and Hybrid Capturementioning

confidence: 99%

Carbon Capture From Flue Gas and the Atmosphere: A Perspective

2020

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Climate change has become a worldwide concern with the rapid rise of the atmospheric Co2 concentration. To mitigate Co2 emissions, the research and development efforts in Co2 capture and separation both from the stationary sources with high Co2 concentrations (e.g., coal-fired power plant flue gas) and directly from the atmosphere have grown significantly. Much progress has been achieved, especially within the last twenty years. In this perspective, we first briefly review the current status of carbon capture technologies including absorption, adsorption, membrane, biological capture, and cryogenic separation, and compare their advantages and disadvantages. Then, we focus mainly on the recent advances in the absorption, adsorption, and membrane technologies. Even though numerous optimizations in materials and processes have been pursued, implementing a single separation process is still quite energy-intensive or costly. To address the challenges, we provide our perspectives on future directions of Co2 capture research and development, that is, the combination of flue gas recycling and hybrid capture system, and one-step integrated Co2 capture and conversion system, as they have the potential to overcome the technical bottlenecks of single capture technologies, offering significant improvement in energy efficiency and cost-effectiveness.

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“…Nowadays, conventional technology for acidic gases removal in the industry is based on the chemisorption process by an aqueous alkanolamine solution, unfortunately not free of some drawbacks including high energy demand during the regeneration of the liquid, solvent loss and degradation [ 1 ]. In this regard, the uprising trend of replacing conventional acidic gases separation techniques by the economically viable and energy-effective membrane or membrane assisted technology has been gaining much interest over the last years, also by authors [ 2 , 3 , 4 , 5 , 6 ]. In the field of membrane gas separations, a novel class of membranes composed of ionic liquids (ILs) or their polymeric derivatives has exhibited an excellent promise for acidic gases separations and has overcome the trade-off outlined in the Robeson upper bound [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Acidic Gases Solubility in Bis(2-Ethylhexyl) Sulfosuccinate Based Ionic Liquids Using the Predictive Thermodynamic Model

et al. 2020

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To properly design ionic liquids (ILs) adopted for gases separation uses, a knowledge of ILs thermodynamic properties as well their solubilities with the gases is essential. In the present article, solubilities of CO2 and H2S in bis(2-Ethylhexyl)sulfosuccinate based ILs were predicted using the conductor like screening model for real solvents COSMO-RS. According to COSMO-RS calculations, the influence of the cation change was extensively analyzed. The obtained data are used for the prediction of adequate solvent candidates. Moreover, to understand the intrinsic behavior of gases solubility the free volume of the chosen ILs and their molecular interactions with respectively CO2 and H2S were computed. The results suggest that hydrogen bonding interactions in ILs and between ILs and the gases have a pivotal influence on the solubility.

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Comprehensive experimental study of acid gases removal process by membrane-assisted gas absorption using imidazolium ionic liquids solutions absorbent

Cited by 37 publications

References 65 publications

Feasibility study of CO₂/N₂ separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Feasibility study of CO₂/N₂ separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Carbon Capture From Flue Gas and the Atmosphere: A Perspective

Acidic Gases Solubility in Bis(2-Ethylhexyl) Sulfosuccinate Based Ionic Liquids Using the Predictive Thermodynamic Model

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Comprehensive experimental study of acid gases removal process by membrane-assisted gas absorption using imidazolium ionic liquids solutions absorbent

Cited by 37 publications

References 65 publications

Feasibility study of CO2/N2 separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Feasibility study of CO2/N2 separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Carbon Capture From Flue Gas and the Atmosphere: A Perspective

Acidic Gases Solubility in Bis(2-Ethylhexyl) Sulfosuccinate Based Ionic Liquids Using the Predictive Thermodynamic Model

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Product

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Feasibility study of CO₂/N₂ separation intensification on supported ionic liquid membranes by commonly used impregnation methods

Feasibility study of CO₂/N₂ separation intensification on supported ionic liquid membranes by commonly used impregnation methods