Enhanced gas separation properties by using nanostructured PES‐Zeolite 4A mixed matrix membranes

Huang, Zhen; Li, Yang; Wen, Rui; Teoh, May May; Kulprathipanja, Santi

doi:10.1002/app.24041

Cited by 103 publications

(80 citation statements)

References 18 publications

(17 reference statements)

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“…%. This is because of polymer chain rigidification around the zeolite particles, partial pore blockage of zeolites by the polymer chains and extended diffusion pathways of the penetrants through the membrane [51][52][53][54][55], with constant or decreasing selectivity [23]. This behavior is attributed to the molecular sieving effect imparted by the introduction of the small-pore zeolites in the membrane, as well as the good interaction with the PTMSP chains that prevents interfacial voids.…”

Section: Influence Of Temperature On Transport Propertiesmentioning

confidence: 99%

Permselectivity improvement in membranes for CO2/N2 separation

Fernández-Barquín

Casado-Coterillo

Palomino

et al. 2016

Separation and Purification Technology

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In this work, small-pore zeolites of different topology (CHA, LTA5, Rho), all with Si/Al ratio of 5, have been added to highly permeable poly(1-trimethylsilyl-1-propyne) (PTMSP) to increase its selectivity and thermal and mechanical stability. Membranes were characterized by TGA, XRD, SEM and CO2 and N2 single gas permeation measurements at different temperatures. TGA reveal that the thermal resistance of the membranes is as good as pure PTMSP polymer. XRD and SEM results reflect that there is good interaction between the fillers and the membrane matrix, at 5 and 10 wt. % zeolite loadings, while at 20 wt.% a dual layer stucture is formed, when Rho zeolite is the filler, because the particle size of Rho is higher than those of LTA5 or CHA, and voids appear that limit the permselectivity performance. In single gas permeation of N2 and CO2, the influence of temperature, zeolite loading and type is analyzed. The selectivity of pure PTMSP is considerably enhanced with the addition of the zeolites and the increase of temperature, and the MMM loaded with 5 wt. % zeolite surpassed the Robeson's upper bound for CO2/N2 separation, without decreasing the permeability too much. Upon increasing temperature from 298 to 333 K, the permselectivity is enhanced even further without loss of permeability. The 5 wt% loaded membranes were tested in CO2/N2 mixed gas separation experiments at 333 K and 12.5 wt. % CO2 in the feed, and the permselectivity of LTA5-and Rho-PTMSP membranes was further enhanced, compared with the single gas permeation experiments.

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Section: Influence Of Temperature On Transport Propertiesmentioning

confidence: 99%

Permselectivity improvement in membranes for CO2/N2 separation

Fernández-Barquín

Casado-Coterillo

Palomino

et al. 2016

Separation and Purification Technology

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“…A decrease in permeability was frequently observed that can be attributed to increased rigidity of polymer chains in the presence of zeolite particles (Huang, Li, Wen, Teoh, & Kulprathipanja, 2006;Moore & Koros, 2005), partial blockage of zeolite pores by polymer chains (Li, Chung, Cao, & Kulprathipanja, 2005), and/or extended diffusion pathways of hydrogen molecules through the membrane (Li et al, 2005;Li, Guan, Chung, & Kulprathipanjana, 2006;S€ uer, Baç, & Yilmaz, 1994). Polycarbonate loaded with 30 wt% highly crystalline zeolite-4A particles of 3 mm reached an H 2 /N 2 selectivity of 73, 30% higher than neat polycarbonate (Ş en, KalipçIlar, & Yilmaz, 2007).…”

Section: Hybrid Materialsmentioning

confidence: 93%

Polymeric membranes for the purification of hydrogen

Bernardo

Jansen

2015

Compendium of Hydrogen Energy

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“…In the fabrication of MMMs, the effect of particle sizes has been considered as an important factor affecting the separation performances of resulting membranes [194,195] . In the most of early studies relating to zeolite/polymer MMMs, commercially available large particles were used as inorganic fi llers.…”

Section: Zeolite Fillers Fimentioning

confidence: 99%

CO2 Selective Separation Membranes

Yao

Wang

2013

Eco- And Renewable Energy Materials

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Over the past two decades, membrane technology has attracted tremendous attention at CO 2 separation from other gases, which has shown great potential to significantly improve energy efficiency and reduce cost associated with processes. The membrane structures and chemistry properties greatly affect their CO 2 separation performances, including selectivity and permeability. In recent years, there has been significant progress in the development of CO 2 -selective membranes. This chapter reviewed the recent activities relating to the fabrication and separation performances of polymeric, inorganic and mixed-matrix membranes for CO 2 separation purposes.

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Enhanced gas separation properties by using nanostructured PES‐Zeolite 4A mixed matrix membranes

Cited by 103 publications

References 18 publications

Permselectivity improvement in membranes for CO2/N2 separation

Permselectivity improvement in membranes for CO2/N2 separation

Polymeric membranes for the purification of hydrogen

CO2 Selective Separation Membranes

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