Prospect of Mixed Matrix Membrane towards CO2 Separation

Ahmad, Abdul Latif

doi:10.4172/2155-9589.1000e110

Cited by 9 publications

(6 citation statements)

References 14 publications

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“…Although the polymeric membranes have high selectivity and permeability for CO 2 separation, but their thermal stability is very low, and these membrane may be plasticized with influence of CO 2 in membrane. Therefore, application of these membranes for post-combustion capture is limited, and flue gas must first be cooled down to 313–333 K for membrane process [ 184 , 222 , 223 ].…”

Section: Co 2 Separation Technologiesmentioning

confidence: 99%

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

Songolzadeh

Soleimani

Ravanchi³

et al. 2014

The Scientific World Journal

350

217

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Increasing concentrations of greenhouse gases (GHGs) such as CO2 in the atmosphere is a global warming. Human activities are a major cause of increased CO2 concentration in atmosphere, as in recent decade, two-third of greenhouse effect was caused by human activities. Carbon capture and storage (CCS) is a major strategy that can be used to reduce GHGs emission. There are three methods for CCS: pre-combustion capture, oxy-fuel process, and post-combustion capture. Among them, post-combustion capture is the most important one because it offers flexibility and it can be easily added to the operational units. Various technologies are used for CO2 capture, some of them include: absorption, adsorption, cryogenic distillation, and membrane separation. In this paper, various technologies for post-combustion are compared and the best condition for using each technology is identified.

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Section: Co 2 Separation Technologiesmentioning

confidence: 99%

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

Songolzadeh

Soleimani

Ravanchi³

et al. 2014

The Scientific World Journal

350

217

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“…In the field of NCM for gas separation, topics that have been reviewed include viability of nanocomposite for carbon capture, oil and gas and biogas refining applications [62][63][64], the role of dimensionally different nanofillers [26,65] and the function of specific nanomaterial especially silica [66], clay [67], zeolite [68,69], carbon-based nanomaterial [25,[70][71][72] and metal organic framework (MOF) [11,56]. To date, CO 2 -separative NCM are the most comprehensively discussed material, where primary focuses have been placed on assessing the potentials of different nanomaterials [61,73], screening of nanofiller [74] and investigating the influences of nanofillers on membrane formation [75]. Another important aspect in the development of NCM is the modification or functionalization of nanofillers, which has been reviewed in terms of the role of modification techniques and chemical agents to stabilize nanofiller dispersion and compatibilize nanofiller with a polymer matrix.…”

Section: Introductionmentioning

confidence: 99%

The State-of-the-Art Functionalized Nanomaterials for Carbon Dioxide Separation Membrane

et al. 2022

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Nanocomposite membrane (NCM) is deemed as a practical and green separation solution which has found application in various fields, due to its potential to delivery excellent separation performance economically. NCM is enabled by nanofiller, which comes in a wide range of geometries and chemical features. Despite numerous advantages offered by nanofiller incorporation, fabrication of NCM often met processing issues arising from incompatibility between inorganic nanofiller and polymeric membrane. Contemporary, functionalization of nanofiller which modify the surface properties of inorganic material using chemical agents is a viable approach and vigorously pursued to refine NCM processing and improve the odds of obtaining a defect-free high-performance membrane. This review highlights the recent progress on nanofiller functionalization employed in the fabrication of gas-separative NCMs. Apart from the different approaches used to obtain functionalized nanofiller (FN) with good dispersion in solvent and polymer matrix, this review discusses the implication of functionalization in altering the structure and chemical properties of nanofiller which favor interaction with specific gas species. These changes eventually led to the enhancement in the gas separation efficiency of NCMs. The most frequently used chemical agents are identified for each type of gas. Finally, the future perspective of gas-separative NCMs are highlighted.

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“…3 Among these technologies, the membrane separation process is of special interest because it may be more cost-effective, energy efficient, and scalable than the other separation methods. 4 One of the most important potential uses for CO 2 separation membranes is to capture and recover CO 2 directly from postcombustion flue gases, wherein the concentration of CO 2 in flue gases ranges from 4 to 14% (v/v) depending on the energy source. 5 Over the past few decades, various types of thin film membrane materials such as inorganic, 6,7 organic, 8,9 and porous hybrid materials 10,11 have been examined with an emphasis on improving their selectivity and permeability.…”

Section: ■ Introductionmentioning

confidence: 99%

Highly Permeable Polyaniline–Graphene Oxide Nanocomposite Membranes for CO₂ Separations

Kweon

Lin

Hasan

et al. 2019

ACS Appl. Polym. Mater.

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Carbon dioxide (CO2) capture from fossil-fuel-based power plants requires scalable membranes with high CO2 permeability and reasonable CO2/N2 selectivity. Conventional membranes based on polyaniline (PANi) feature a CO2 permeability of 1 Barrer or less, which is unviable for industrial applications such as separating the massive scale of CO2 emissions produced by power plants. Here, we report nanocomposites comprised of the conjugated polymer polyaniline with graphene oxide at different oxidation levels that are blended and drop-cast to form freestanding membranes for gas separations. The added graphene oxide is shown to effectively enhance the gas permeability. These hybrid membranes are characterized by Fourier-transform infrared spectroscopy to indicate clearly the presence of well-dispersed GO in the polyaniline matrix; vertical scanning interferometry and field emission scanning electron microscopy to illustrate the film homogeneity, morphology, and thickness; and thermogravimetric analysis to assess thermal stability. The outcomes highlight composited membranes that are readily scalable, tolerant to slightly elevated temperatures (up to 170 °C), and that feature CO2 permeabilities >700 Barrers and reasonable CO2/N2 selectivities. By applying a doping/dedoping/redoping process using hydrochloric acid (HCl) and ammonium hydroxide (NH4OH), the membrane selectivities can be considerably enhanced. This work thus reports the first synthesis of PANi-based nanocomposite membranes whose permeability begins to approach the upper bound indicated on a Robeson plot.

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Prospect of Mixed Matrix Membrane towards CO2 Separation

Cited by 9 publications

References 14 publications

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

The State-of-the-Art Functionalized Nanomaterials for Carbon Dioxide Separation Membrane

Highly Permeable Polyaniline–Graphene Oxide Nanocomposite Membranes for CO₂ Separations

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Prospect of Mixed Matrix Membrane towards CO2 Separation

Cited by 9 publications

References 14 publications

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

Carbon Dioxide Separation from Flue Gases: A Technological Review Emphasizing Reduction in Greenhouse Gas Emissions

The State-of-the-Art Functionalized Nanomaterials for Carbon Dioxide Separation Membrane

Highly Permeable Polyaniline–Graphene Oxide Nanocomposite Membranes for CO2 Separations

Contact Info

Product

Resources

About

Highly Permeable Polyaniline–Graphene Oxide Nanocomposite Membranes for CO₂ Separations