ABS copolymer-activated carbon mixed matrix membranes for CO2/CH4 separation

Anson, Marcia; Marchese, José Abramo; Garis, Eduardo; Ochoa, Nelio Ariel; Pagliero, Cecilia

doi:10.1016/j.memsci.2004.05.008

Cited by 162 publications

(88 citation statements)

References 17 publications

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“…However, a rise in intensity of the peak corresponding to 100% AC-PEBAX-2533 can be evidenced (Fig. 4, curve c), which may be attributed to the increased filler content of the matrix, resulting in a higher gas permeability with a substantial drop in membrane selectivity [14]. The afore-mentioned observations are confirmed by the permeability data of pure gases in the composite films.…”

Section: Semsupporting

confidence: 59%

Synthesis, Characterization and Gas Permeability of an Activated Carbon-Loaded PEBAX 2533 Membrane

Sridhar

Smitha

Suryamurali

et al. 2008

Designed Monomers and Polymers

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Poly(ether-block-amide) (PEBAX-2533) was used as a polymer matrix and micro-mesoporous activated carbon (AC) particles were chosen as the inorganic fillers in fabricating mixed matrix membranes. Performance of the novel composite membranes, in terms of selectivity towards CO 2 , was investigated as a function of feed pressure and carbon loading. Membranes were characterized by scanning electron microscopy (SEM) to study their surface and cross-sectional morphologies. Wide-angle X-ray diffraction (WAXD) studies were performed to check if the AC particles interacted with the polymer and also to understand the separation mechanisms. Gas permeance of CO 2 and CH 4 was determined for 50% and 100% carbon-loaded PEBAX-2533 membrane using an indigenously built high-pressure gas separation manifold. PEBAX-2533-AC membranes exhibited an increase in CO 2 gas permeance with increasing carbon loadings in the mixed matrix membranes.  Koninklijke Brill NV, Leiden, 2008

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Section: Semsupporting

confidence: 59%

Synthesis, Characterization and Gas Permeability of an Activated Carbon-Loaded PEBAX 2533 Membrane

Sridhar

Smitha

Suryamurali

et al. 2008

Designed Monomers and Polymers

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“…Hexane within the membrane was removed under vacuum. [9][10][11] Sample membranes to be examined by scanning electron microscopy (SEM) were cut out and fractured in liquid nitrogen. The dried fractured membrane samples were sputtered with gold, and then the cross-sectional scanning electron micrograph of each membrane was recorded.…”

Section: Scanning Electron Microscopy Of Pet/pvp Ultrafiltration Membmentioning

confidence: 99%

Ultrafiltration Membranes From Waste Polyethylene Terephthalate and Additives: Synthesis and Characterization

Rajesh¹,

Murthy²

2014

Química Nova

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The synthesis and characterization of asymmetric ultrafiltration membranes from recycled polyethylene terephthalate (PET) and polyvinylpyrrolidone (PVP) is reported. PET is currently used in many applications, including the manufacture of bottles and tableware. Monomer extraction from waste PET is expensive, and this process has not yet been successfully demonstrated on a viable scale. Hence, any method to recycle or regenerate PET once it has been used is of significant importance from scientific and environmental research viewpoints. Such a process would be a green alternative due to reduced raw monomer consumption and the additional benefit of reduced manufacturing costs. The membranes described here were prepared by a phase-inversion process, which involved casting a solution containing PET, m-cresol as solvent, and polyethylene glycol (PEG) of different molecular weights as additives. The membranes were characterized in terms of pure water permeability (PWP), molecular weight cut-off (MWCO), and flux and membrane morphology. The results show that the addition of PEG with high molecular weights leads to membranes with higher PWP. The presence of additives affects surface roughness and membrane morphology.

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“…Activated carbon is an amorphous, highly porous carbon material with a high specific surface area [2]. The activated carbon with large surface area, high adsorption capacity, and micro porous structure is one of the most effective adsorbents for organic compounds [3][4][5][6], and thus plays an important role in modern since and technology. For instance it is used in the purification of liquids and gases [7,8], in the catalysis [9,10], for the separation of mixtures [11,12], and even in the hydrogen storage [13,14].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Surfactant-Modified Powder Activated Carbon (SM-PAC) Reinforced Poly (Ethylene Oxide) (PEO) Composites

2016

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Poly (ethylene oxide), PEO, which was used for a wide variety of applications is a flexible, crystalline, thermoplastic, water-soluble and non-ionic polymer. The most of studies on surfactant-modified activated carbon (SM-PAC) have been generally focused on the removal of contaminants. This study aims the preparation of PEO/(SM-PAC) composites, using solution-intercalation method. Firstly activated carbon was modified with cationic surfactant, Cetyltrimethylammonium Bromide (CTAB). Then PEO/(SM-PAC) composites were prepared using solution-intercalation method, with two different (SM-PAC) contents (1.0 and 2.0 wt.%). The characterization of the composites was made by X-ray diffraction (XRD), Fourier Infrared Spectroscopy (FT-IR), thermal analysis and tensile tests. The XRD patterns revealed that 2θ positions of the broad peaks belonging to the composites significantly shift to left compared with those of virgin PEO. The SEM images of the surfactant-modified powdered activated carbon (SM-PAC)/PEO composites prepared with the two different SM-PAC contents show that there is an intensive interaction between the CTA + ions of modified activated carbon surface and the polymer chains. From the tensile tests, it was found that the unmodified powdered activated carbon dispersed into the polymer matrix made the ductile polymer more brittle. However, the tensile and yield strengths of the composite, prepared with modified powdered activated carbon, have decreased, and the strain percent value has significantly increased.

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ABS copolymer-activated carbon mixed matrix membranes for CO2/CH4 separation

Cited by 162 publications

References 17 publications

Synthesis, Characterization and Gas Permeability of an Activated Carbon-Loaded PEBAX 2533 Membrane

Synthesis, Characterization and Gas Permeability of an Activated Carbon-Loaded PEBAX 2533 Membrane

Ultrafiltration Membranes From Waste Polyethylene Terephthalate and Additives: Synthesis and Characterization

Preparation and Characterization of Surfactant-Modified Powder Activated Carbon (SM-PAC) Reinforced Poly (Ethylene Oxide) (PEO) Composites

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