Gas Separation with Polymer Membranes

Maier, Gerhard

doi:10.1002/(sici)1521-3773(19981116)37:21<2960::aid-anie2960>3.0.co;2-5

Cited by 207 publications

(51 citation statements)

References 21 publications

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“…For example, commercial pervaporation systems for dehydration of alcohol were introduced in Germany by GFT (a small engineering company) in the 1980s (Baker, 2004). A plant separating air into its constituent gases and producing pure nitrogen at nearly 24 t h −1 in Belgium by Praxair Co. began operation in 1996 (Maier, 1998). Since the development of ultrafiltration as a viable industrial process in the 1960s, there have been literally thousands of different ultrafiltration membranes sold commercially.…”

Section: Introductionmentioning

confidence: 99%

Organic-inorganic hybrid membranes in separation processes: a 10-year review

Souza

Quadri

2013

Braz. J. Chem. Eng.

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-In relation to some inorganic membranes, polymeric membranes have relatively low separation performance. However, the processing flexibility and low cost of polymers still make them highly attractive for many industrial separation applications. Polymer-inorganic hybrid membranes constitute an emerging research field and have been recently developed to improve the separation properties of polymer membranes because they possess properties of both organic and inorganic membranes such as good hydrophilicity, selectivity, permeability, mechanical strength, and thermal and chemical stability. The structures and processing of polymer-inorganic nanocomposite hybrid membranes, as well as their use in the fields of ultrafiltration, nanofiltration, pervaporation, gas separation and separation mechanism are reviewed.

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Section: Introductionmentioning

confidence: 99%

Organic-inorganic hybrid membranes in separation processes: a 10-year review

Souza

Quadri

2013

Braz. J. Chem. Eng.

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“…The reliability of the equilibrated PEBAX/KET models at different additive compositions (30 wt %, 50 wt %, 70 wt %) was also tested by comparing simulated permeability coefficients of five gas molecules, H 2 , O 2 , N 2 , CH 4 and CO 2 and water vapor with experimental data already available from Gugliuzza et al, [10][11][12]. Table 3 summarizes the theoretical transport parameters and the available experimental values for PEBAX/KET systems in different compositions.…”

Section: Gas and Vapor Permeabilitymentioning

confidence: 99%

“…However, there is a key technical challenge to be met: That of achieving higher permeability and higher selectivity [2]. Special attention has been paid to the use of membranes in a solubility-selective mode in recent years, obtaining preferential permeation through the membranes of more soluble gaseous species [3,4]. Polymers containing poly(ethylene oxide) units have an interesting CO 2 /N 2 selectivity.…”

Section: Introductionmentioning

confidence: 99%

Pure And Modified Co-poly(amide-12-b-ethylene oxide) Membranes For Gas Separation Studied By Molecular Investigations

Tocci¹,

Lorenzo²,

Gugliuzza³

et al. 2010

AIP Conference Proceedings

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This paper deals with a theoretical investigation of gas transport properties in a pure and modified PEBAX block copolymer membrane with N-ethyl-o/p-toluene sulfonamide (KET) as additive molecules. Molecular dynamics simulations using COMPASS force field, Gusev-Suter Transition State Theory (TST) and Monte Carlo methods were used. Bulk models of PEBAX and PEBAX/KET in different copolymer/additive compositions were assembled and analyzed to evaluate gas permeability and morphology to characterize structure-performance relationships.

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“…Polymeric membranes, as opposed to inorganic ones, are widely used in gas and liquid separation due to their advantages such as ease of preparation, flexibility and other desirable properties (Maier, 1998;George and Thomas, 2001;Freeman and Pinnau, 1999). Robeson (1991) revealed that, even though these advantages exist, polymeric membranes still suffer from a trade-off between gas permeability and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Preparation, characterization and gas permeation study of PSf/MgO nanocomposite membrane

Momeni

Pakizeh

2013

Braz. J. Chem. Eng.

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-Nanocomposite membranes composed of polymer and inorganic nanoparticles are a novel method to enhance gas separation performance. In this study, membranes were fabricated from polysulfone (PSf) containing magnesium oxide (MgO) nanoparticles and gas permeation properties of the resulting membranes were investigated. Membranes were prepared by solution blending and phase inversion methods. Morphology of the membranes, void formations, MgO distribution and aggregates were observed by SEM analysis. Furthermore, thermal stability, residual solvent in the membrane film and structural ruination of membranes were analyzed by thermal gravimetric analysis (TGA). The effects of MgO nanoparticles on the glass transition temperature (T g ) of the prepared nanocomposites were studied by differential scanning calorimetry (DSC). The T g of nanocomposite membranes increased with MgO loading. Fourier transform infrared (FTIR) spectra of nanocomposite membranes were analyzed to identify the variations of the bonds. The results obtained from gas permeation experiments with a constant pressure setup showed that adding MgO nanoparticles to the polymeric membrane structure increased the permeability of the membranes. At 30 wt% MgO loading, the CO 2 permeability was enhanced from 25.

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Gas Separation with Polymer Membranes

Cited by 207 publications

References 21 publications

Organic-inorganic hybrid membranes in separation processes: a 10-year review

Organic-inorganic hybrid membranes in separation processes: a 10-year review

Pure And Modified Co-poly(amide-12-b-ethylene oxide) Membranes For Gas Separation Studied By Molecular Investigations

Preparation, characterization and gas permeation study of PSf/MgO nanocomposite membrane

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