Fabrication and characterization of silica modified polyimide–zeolite mixed matrix membranes for gas separation properties

Boroğlu, Mehtap Şafak; Gürkaynak, M. Ali

doi:10.1007/s00289-010-0286-x

Cited by 49 publications

(33 citation statements)

References 26 publications

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“…Some commercial applications of the membrane-based separation technology are air dehumidification, nitrogen production, hydrogen recovery from refinery purge gases, natural gas sweetening, and helium separation [1][2][3][4][5][6]. Some commercial applications of the membrane-based separation technology are air dehumidification, nitrogen production, hydrogen recovery from refinery purge gases, natural gas sweetening, and helium separation [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 73%

“…The fabrication of MMMs of poly(imide siloxane) with zeolites 4A and 13X with particle sizes of 388 and 1088 nm, respectively, has been reported by Boroglu and Gurkaynak [5]. It has been found that, with increasing zeolite loading for the poly(imide siloxane)-zeolite 4A membranes, the permeability of the O 2 and N 2 gases decreased, whereas the selectivity of the manufactured MMMs increased.…”

Section: Introductionmentioning

confidence: 99%

“…It has been found that, with increasing zeolite loading for the poly(imide siloxane)-zeolite 4A membranes, the permeability of the O 2 and N 2 gases decreased, whereas the selectivity of the manufactured MMMs increased. Sen et al fabricated polycarbonate-zeolite 4A MMMs [8] and, similar to Boroglu and Gurkaynak [5], showed that, by increasing the zeolite loading, the permeability of all studied gases decreased while the selectivity of the membranes increased remarkably. Ismail et al [13] investigated the gas separation performance of MMMs that were made of a miscible blend of polyethersulfone (PES)/PI incorporated with zeolite 4A, concluding that the optimum adsorbent loading was 30 % under the studied conditions.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Homogenous Polymer‐Zeolite Nanocomposites as Mixed‐Matrix Membranes for Gas Separation

et al. 2012

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Interfacial void-free mixed-matrix membranes (MMMs) of polyimide (PI)/ zeolite were developed using 13X and Linde type A nano-zeolites and tested for gas separation purposes. Fabrication of a void-free polymer-zeolite interface was verified by the decreasing permeability developed by the MMMs for the examined gases, in comparison to the pure PI membrane. The molecular sieving effect introduced by zeolite 13X improved the CO 2 /N 2 and CO 2 /CH 4 selectivity of the MMMs. Separation tests indicated that the manufactured nanocomposite membrane with 30 % loading of 13X had the highest permselectivity for the gas pairs CO 2 /CH 4 and CO 2 /N 2 at the three examined feed pressures of 4, 8 and 12 atm.

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Section: Introductionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fabrication of Homogenous Polymer‐Zeolite Nanocomposites as Mixed‐Matrix Membranes for Gas Separation

et al. 2012

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“…Wetting period is expected to provide an opportunity for the surface of HNTs to be prepared for being attached to the polymer chains. The main purpose of priming HNTs is to provide a very thin layer of polymer on the HNTs external surface to hinder them from agglomeration [12,15,[49][50][51][52].…”

Section: Other Characterization Methodsmentioning

confidence: 99%

“…Since the particles of fillers are in nanoscale, they have stronger tendencies to attach to each other in the dope solution preparation step. Therefore, this study attempts to investigate the factors which significantly influence the filler dispersion such as ultrasonic sonication period [45][46][47][48], filler wetting period and filler priming period [49][50][51][52]. Although temperature is also known as another important factor, in this study it is kept constant.…”

Section: Fabrication Of Asymmetric Flat Sheet Mixed Matrix Membranementioning

confidence: 99%

Mixed matrix membrane incorporated with large pore size halloysite nanotubes (HNT) as filler for gas separation: Experimental

Hashemifard

Ismail

Matsuura

2011

Journal of Colloid and Interface Science

112

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High oxygen permeable Zeolite‐4A poly(dimethylsiloxane) membrane for air separation

Prajapati

Kansara

Aswal

et al. 2019

J of Applied Polymer Sci

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High oxygen permeability with optimal selectivity of the membrane is required for advancement in air separation membrane technology. Zeolite 4A-PDMS composite membranes were prepared by incorporation of Zeolite 4A nanoscale crystals during the polymerization process of PDMS membrane using toluene and n-heptane solvents, and their oxygen gas permeability and selectivity were explored. Small angle neutron scattering (SANS) technique was further used to study the polymer chain conformation and structure of membranes influenced by Zeolite 4A loading. The intersegmental distance between polymer chains and polymer chain aggregation or clustering were found to be increased on increasing the Zeolite 4A content in the membranes. Increment in the O 2 permeability and O 2 /N 2 selectivity were observed for both type of membranes (toluene and n-heptane) with 1 wt% Zeolite 4A loading. The best performance result with O 2 /N 2 selectivity of 2.6, and O 2 permeability of 1052 Barrer was exhibited by PDMS/toluene membrane loaded with 1 wt% Zeolite 4A. The PDMS/toluene membranes with 10 wt% Zeolite 4A loading exhibited increased O 2 permeability of 1245 Barrer with a fair O 2 /N 2 selectivity of~1.7, while the PDMS/n-heptane membrane with the same loading exhibited excellent O 2 permeability of 6773 Barrer but lesser O 2 /N 2 selectivity of~1.2.

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Fabrication and characterization of silica modified polyimide–zeolite mixed matrix membranes for gas separation properties

Cited by 49 publications

References 26 publications

Fabrication of Homogenous Polymer‐Zeolite Nanocomposites as Mixed‐Matrix Membranes for Gas Separation

Fabrication of Homogenous Polymer‐Zeolite Nanocomposites as Mixed‐Matrix Membranes for Gas Separation

Mixed matrix membrane incorporated with large pore size halloysite nanotubes (HNT) as filler for gas separation: Experimental

High oxygen permeable Zeolite‐4A poly(dimethylsiloxane) membrane for air separation

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