Experimental and modeling study of CO2 absorption by L-Proline promoted potassium carbonate using hollow fiber membrane contactor

Niknam, Mohamad; Zare, Parisa; Keshavarz, Peyman

doi:10.1016/j.ijggc.2019.102877

Cited by 23 publications

(7 citation statements)

References 36 publications

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“…Based on the obtained results, the liquid flow rate has a direct relationship with the amounts of CO 2 mass transfer rate, and increasing the amount of liquid flow rate results in a higher CO 2 separation. Indeed, increasing the liquid flow rate plays a crucial part in the reduction of liquid phase resistance, whereby the intensity of mass transfer as well as the diffusion of CO 2 into the liquid increases. , …”

Section: Resultsmentioning

confidence: 99%

“…Diffused gas molecules are then reacted and absorbed by the liquid phase. Some typical assumptions are considered to simplify the model. , The system is steady. Temperature and pressure fluctuations are ignored. The system works under ambient conditions. So, the gas phase has an ideal behavior. Liquid absorbent stream is considered to be fully developed, and the velocity profile is parabolic. Axial diffusion is not tangible and ignored. Absorption solubility is calculated by Henry’s law. …”

Section: Methodsmentioning

confidence: 99%

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Highly Selective Physical/Chemical CO₂ Separation by Functionalized Fe₃O₄ Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

et al. 2022

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Herein, different water-based modified magnetite nanodispersions of Fe3O4-proline (Fe3O4-P), Fe3O4-lysine (Fe3O4-L), Fe3O4@SiO2-proline (Fe3O4@SiO2-P), and Fe3O4@SiO2-lysine (Fe3O4@SiO2-L) were prepared to improve the stability and absorption capacity of bare Fe3O4 nanodispersion for selective physical/chemical carbon dioxide (CO2) separation in a polypropylene hollow fiber membrane contactor (PP HFMC). The liquid was passed through the tube side and CO2 gas was passed through the shell side concurrently. Subsequently, the impacts of varying nanoparticle (NP) loadings, gas/liquid flow rates (Q l/Q g), and NP stability on CO2 separation were elucidated. Considering the achieved results, all modified NPs revealed higher selective CO2 separation performances compared to bare Fe3O4 NPs because of functionalization with chemical reactants of CO2. Also, for the first time, to evaluate the influence of the CO2 inlet concentration and wetting parameter, a new and simple model was proposed in which the behavior of functional NPs was considered. Ultimately, the CO2 removal enhancements of 27.5, 57.14, 64.28, 72.8, and 96.42% were achieved for Fe3O4, Fe3O4-P, Fe3O4-L, Fe3O4@SiO2-P, and Fe3O4@SiO2-L at optimal NP loadings and in the best operational conditions (i.e., Q l = 10 mL·min–1 and Q g = 100 mL·min–1).

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Highly Selective Physical/Chemical CO₂ Separation by Functionalized Fe₃O₄ Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

et al. 2022

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“…As a common CO 2 absorbent, MEA has high chemical reactivity and good kinetic properties, but it has problems such as pipeline corrosion and high energy cost of regeneration in practical applications. Therefore, in the selection of base liquids for nanofluids, more promising solvents should be considered, such as an amine mixture, non-aqueous sorbents, catalysts to facilitate desorption, etc. − Figure illustrates the trend of research papers published on CO 2 absorption using nanofluids from 2016 to 2022 in the database of Scopus. The number of publications has been increasing year by year, indicating growing interest in this field.…”

Section: Introductionmentioning

confidence: 99%

Review and Perspectives of CO₂ Absorption by Water- and Amine-Based Nanofluids

et al. 2023

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The emission of greenhouse gases, especially CO2, has become a major cause of environmental degradation, and carbon capture, utilization, and storage (CCUS) is a proposed solution to mitigate its impact. Nanofluids, a relatively new method for CO2 absorption, have gained attention in recent years. This review focuses on conventional methods for preparing nanofluids along with techniques to improve their stability and enhance the CO2 absorption and desorption mechanisms. Additionally, the influences of factors, i.e., nanoparticle and base solution types as well as nanoparticle concentration, on the CO2 absorption process are summarized. Furthermore, models that can predict the absorption of CO2 accurately are outlined. It is found that the types of both base liquids and nanoparticles have an important impact on the absorption by nanofluids. In-depth studies on the predictive capabilities of artificial intelligence (AI) models hold immense potential in this regard. This review also puts forth effective strategies to address prevailing challenges. This will provide a solid theoretical basis for this field and underscore the promising potential of nanofluids as CO2 solvents. There are still many unexplored aspects to be considered, such as the economic viability and energy consumption of this technology.

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“…Alkaline salt solutions of amino acids exhibit similar action toward CO 2 in flue gas because amino acid salts have the same amine functionality as alkanolamines (4) . Despite being expensive than alkanolamines, amino acids have several special benefits, such as resistance to oxidative deterioration (5) , negligible volatility, and quick absorption rates (6) .…”

Section: Introductionmentioning

confidence: 99%

Volumetric Properties of Aqueous Sodium Salt of Amino Acids as CO2 Capture Solvent

Dhande¹,

Tayade²

2022

IJST

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Objectives:To produce new and accurate data of density of aqueous solution of amino acid salts at different temperatures and to correlate it with molality. Methods: The densities of aqueous solutions of sodium salts of Amino acids such as L-cysteine, L-leucine, L-proline and L-valine have been measured using double-arm Pycnometer, placed in a transparent glass-walled water bath having thermal stability of (0.01 K) at concentrations range (0.01 to 0.15) mol L -1 and at 298.15, 303.15, 308.15, and 313.15 K. From density data ahead, apparent molar volumes (V ϕ ), the partial molar volumes (V ϕ 0 ), expansion coefficient (E ∞ ) and Hepler's constantwere calculated and analysed on the basis of the intermolecular interaction and molecular structure. Findings: The densities are observed to increase with concentration and decrease with increasing temperature. The positive values of partial molar volume (V ϕ 0 ) indicate strong sodium amino acids -water interactions. Novelty:For studied aqueous sodium salt solution of Amino acids, such properties have not yet been reported in the open literature and at such a lower concentrations range (0.01 to 0.15) mol L -1 .

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Experimental and modeling study of CO2 absorption by L-Proline promoted potassium carbonate using hollow fiber membrane contactor

Cited by 23 publications

References 36 publications

Highly Selective Physical/Chemical CO₂ Separation by Functionalized Fe₃O₄ Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

Highly Selective Physical/Chemical CO₂ Separation by Functionalized Fe₃O₄ Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

Review and Perspectives of CO₂ Absorption by Water- and Amine-Based Nanofluids

Volumetric Properties of Aqueous Sodium Salt of Amino Acids as CO2 Capture Solvent

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Experimental and modeling study of CO2 absorption by L-Proline promoted potassium carbonate using hollow fiber membrane contactor

Cited by 23 publications

References 36 publications

Highly Selective Physical/Chemical CO2 Separation by Functionalized Fe3O4 Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

Highly Selective Physical/Chemical CO2 Separation by Functionalized Fe3O4 Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

Review and Perspectives of CO2 Absorption by Water- and Amine-Based Nanofluids

Volumetric Properties of Aqueous Sodium Salt of Amino Acids as CO2 Capture Solvent

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Product

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Highly Selective Physical/Chemical CO₂ Separation by Functionalized Fe₃O₄ Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

Highly Selective Physical/Chemical CO₂ Separation by Functionalized Fe₃O₄ Nanoparticles in Hollow Fiber Membrane Contactors: Experimental and Modeling Approaches

Review and Perspectives of CO₂ Absorption by Water- and Amine-Based Nanofluids