Substantial breakthroughs on function-led design of advanced materials used in mixed matrix membranes (MMMs): A new horizon for efficient CO2 separation

Amooghin, Abtin Ebadi; Mashhadikhan, Samaneh; Sanaeepur, Hamidreza; Moghadassi, Abdolreza; Matsuura, Takeshi; Ramakrishna, Seeram

doi:10.1016/j.pmatsci.2018.11.002

Cited by 200 publications

(108 citation statements)

References 438 publications

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“…Generally, three diffusion mechanisms are known for gas transport through membranes: Knudsen diffusion, molecular sieving or molecular diffusion, and solution‐diffusion or sorption‐diffusion . By increasing the filler pore size, the diffusion mechanism in the MMM is changed from solution‐diffusion to Knudsen diffusion .…”

Section: Methodsmentioning

confidence: 99%

“…On the other hand, modeling of permeation behavior in MMMs can play an effective role in the progressive development of MMMs for separation processes. To determine the exact behavior of permeation, some of the important parameters including gas solubility and diffusivity, and the size and volume fraction of fillers have a basic role in the performance of MMMs . Two different types of MMM models have been evolved: two‐phase and three‐phase morphologies.…”

Section: Introductionmentioning

confidence: 99%

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A new permeation model in porous filler–based mixed matrix membranes for CO₂ separation

2019

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In this paper, a novel comprehensive permeation model for mixed matrix membranes (MMMs) is introduced. This model shows the importance of understanding and developing a more reliable model for the permeation behavior of MMMs containing porous filler nanoparticles. A new method is established to provide a more precise/large‐scale three‐dimensional MMMs geometry. The required number of spherical porous fillers in random/nonuniform positions in the polymer matrix is calculated. Interfacial equilibrium constant (K) at the polymer/filler interfaces was adjusted as the concentration ratio of the diffusing penetrants (C2 and C1) at the interface, respectively. In this case, the K values are changed by varying the intended gaseous concentration due to their permeation through the MMM. Hence, its effect on penetrants effective diffusion coefficient was examined. Then, the obtained results were evaluated with similar experimental data, which showed much consistency. Therefore, the accurate calculation method for MMMs permeability was governed for the entire range of the operating pressures in MMMs. The results showed that the permeability of MMMs increases with increasing filler particle size. On the other hand, variations that occur in the MMM permeability at various particle size were much more distinct at higher loadings. Moreover, some well‐known analytical permeation models were used to compare and validate the model's permeability results. It can be concluded that this model provides a method for more precise and realistic design of MMMs as well as to better construe the large number of related experimental data. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new permeation model in porous filler–based mixed matrix membranes for CO₂ separation

2019

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“…Alloyed membranes and mixed‐matrix membranes (MMMs) with improved morphology and physiochemical properties have allowed achieving separation performances closed to or above the upper bounds . In particular, MMMs have also addressed the limitations of inorganic membranes like brittleness and processability .…”

Section: Introductionmentioning

confidence: 99%

Improved gas transport properties of polyurethane–urea membranes through incorporating a cadmium‐based metal organic framework

Sadeghi

Isfahani

Shamsabadi

et al. 2019

J of Applied Polymer Sci

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The increasing need for more efficient separation processes has motivated the development of polymer membranes that can provide fast and selective transport. In this work, cadmium‐based metal–organic framework (MOF) nanoparticles and a polyurethane–urea (PUU) elastomer were synthesized. New mixed‐matrix membranes (MMMs) were then fabricated from the nanoparticles and the PUU. SEM images verified that embedding the nanoparticles changes the morphology of the PUU and the nanoparticles disperse well in the PUU due to satisfactory compatibility of the polymer and nanoparticles. Fourier transform infrared spectroscopy and X‐ray diffraction analysis confirmed the dispersion of the nanoparticles in the soft segment of the PUU. With increased temperature, gas permeabilities of the MMMs improved but their sieving ability deteriorated. An MMM incorporating 2.5 wt % of the MOF showed a CO2 permeability of ~140 barrer and a CO2/N2 selectivity of ~30, which are 89 and 38% higher than those of the pristine membrane. Gas permeation tests showed that the higher CO2/N2 selectivity of the MMMs was due to improved solubility selectivity and the higher CO2 permeability was a result of improved CO2 diffusivity and solubility coefficients. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48704.

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“…Water, biomass, and hydrocarbons are three different forms of H 2 storing systems. [12][13][14][15] Among the membrane configurations, hollow fiber membrane (HFM) has the highest surface area in comparison with the other modules such as spiral wound and plate and frame. Membrane-based process units have a compact size, high efficiency, low maintenance, low-energy consumption, low capital investment, ease of operation, and high flexibility.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen recovery from ammonia purge gas by a membrane separator: A simulation study

Maarefian¹,

Bandehali

Azami

et al. 2019

Int J Energy Res

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Summary In this study, a two‐dimensional mathematical model is proposed for modeling the hollow fiber membrane (HFM) separators for hydrogen (H2) recovery unit implemented in the Razi Petrochemical Company (Imam Khomeini Port, Iran) to capture hydrogen from ammonia (NH3) purge gas. In this regard, computational fluid dynamics is applied to solve the equations of momentum and mass transfer in the laminar flow conditions. Axial and radial diffusion for mass transfer inside the membrane fibers and axial diffusion within the shell side of separator were considered. The distributions of concentration, velocity, and mass transfer fluxes were achieved by the model. As the new insights, the effects of feed flow rate and feed gas concentration on mass transfer of H2 were investigated. Moreover, fluid velocity profile and H2 fluxes in the tube (fiber), membrane, and shell sides of the HFM separator were studied. The results of simulation were compared with the industrial data and showed that the present developed model has excellent agreement with the experimental data with a low mean deviation value of 3.5%.

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Substantial breakthroughs on function-led design of advanced materials used in mixed matrix membranes (MMMs): A new horizon for efficient CO2 separation

Cited by 200 publications

References 438 publications

A new permeation model in porous filler–based mixed matrix membranes for CO₂ separation

A new permeation model in porous filler–based mixed matrix membranes for CO₂ separation

Improved gas transport properties of polyurethane–urea membranes through incorporating a cadmium‐based metal organic framework

Hydrogen recovery from ammonia purge gas by a membrane separator: A simulation study

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Substantial breakthroughs on function-led design of advanced materials used in mixed matrix membranes (MMMs): A new horizon for efficient CO2 separation

Cited by 200 publications

References 438 publications

A new permeation model in porous filler–based mixed matrix membranes for CO2 separation

A new permeation model in porous filler–based mixed matrix membranes for CO2 separation

Improved gas transport properties of polyurethane–urea membranes through incorporating a cadmium‐based metal organic framework

Hydrogen recovery from ammonia purge gas by a membrane separator: A simulation study

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A new permeation model in porous filler–based mixed matrix membranes for CO₂ separation

A new permeation model in porous filler–based mixed matrix membranes for CO₂ separation