Preparation and Permeation Properties of PESU-Based Mixed Matrix Membranes with Nano-Sized CHA Zeolites

Wu, Ting; Liu, Yongsheng; Kumakiri, Izumi; Tanaka, Kazuhiro; Chen, Xiangshu; Kita, Hidetoshi

doi:10.1252/jcej.18we241

Cited by 11 publications

(19 citation statements)

References 21 publications

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“…These peak positions assigned to the crystalline plane of (100), ( 110), (-111), (-201) and (-311/310), respectively. It is in a good accordance with XRD pattern of the lab-made SAPO-34 zeolite (Z2) in the previous study [16]. Compared to Z2 particles, the priority growth of (100) occurred in the Z1 particles.…”

Section: Characterization Of Membranessupporting

confidence: 89%

“…This defect also appeared in the reported SAPO-34 MMMs [12−16]. In addition, the agglomeration occurred in the MMMs using 20 wt% and 30 wt% Z2 zeolite filler (Z2-20 and Z2-30) in our previous study [16]. This was due to the tiny particles with large surface area tend to agglomerate.…”

Section: Sem Observationsupporting

confidence: 59%

“…The commercial SAPO-34 zeolite (Z1) powder was kindly provided by Nikki Universal Co., Ltd. The lab-made SAPO-34 zeolite (Z2) in our previous study was used as a reference [16]. The PES solid was produced by BASF Chemical Co., Germany).…”

Section: Experimental 21 Materialsmentioning

confidence: 99%

“…There was no detail discussion on the contribution of the SAPO-34 to the permeability and selectivity of the SAPO-34/PES MMMs in terms of the gas diffusivity and solubility in the membranes. In our previous study, the effect of the lab-made SAPO-34 zeolite on the CO2 and CH4 diffusivity and solubility had been investigated as well as the permeability and ideal selectivity [16]. After adding SAPO-34 zeolite, the permeability and ideal selectivity were increased with the solubility increased and the diffusivity decreased.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Gas Diffusivity and Solubility of PES based Mixed Matrix Membranes Using Commercial SAPO-34 Zeolite

Liu

Takata

Kita

et al. 2021

Trans. Mat. Res. Soc. Japan

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Commercialized silicoaluminophosphate-34 (SAPO-34) zeolite was successfully blended in the polyethersulfone (PES) polymer to prepare the mixed matrix membranes (MMMs). The CO2 permeability and CO2/CH4 ideal selectivity of 30 wt% SAPO-34/PES MMM at 0.1 MPa and 35 °C were 15 barrer and 51, respectively. In our previous paper, the PES MMMs using laboratory-made SAPO-34 provided both higher permeability and selectivity than the neat PES membrane. The performance of the commercial SAPO-34 filled MMMs in this study exceeded their performance. We also investigated the performance of these MMMs in terms of gas diffusivity and solubility. The increase in the diffusivity selectivity was greater for the commercial SAPO-34 MMMs than for the laboratory-made SAPO-34 MMMs. The difference was attributed to the amounts of defects. The performance of the MMMs in this study was also superior to that of the reported SAPO-34/PES MMMs in literature where the filler surface was modified to improve the compatibility of the filler and PES matrix. These results suggest that the use of the commercial SAPO-34 and an appropriate surface modification has the potential to improve the performance of the MMMs.

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Section: Characterization Of Membranessupporting

confidence: 89%

Section: Sem Observationsupporting

confidence: 59%

Section: Experimental 21 Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of Gas Diffusivity and Solubility of PES based Mixed Matrix Membranes Using Commercial SAPO-34 Zeolite

Liu

Takata

Kita

et al. 2021

Trans. Mat. Res. Soc. Japan

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“…There are some literatures reported that the SAPO-34 improved the separation properties of the polymer membrane. For example, the CO2 permeability and CO2/CH4 selectivity of PES membrane could be increased by 22% and 13% through adding 20% SAPO-34 (Wu, et al, 2019). Commercial Matrimid  5218 was blended with 20 wt% SAPO-34, its CO2 permeability and CO2/CH4 selectivity was increased by 55% and 103% (Peydayesh, et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Nano-porous Zeolite and MOF Filled Mixed Matrix Membranes for Gas Separation

et al. 2021

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The commercial SAPO-34 zeolite with 0.38 nm pore size and ZIF-8 particles with 0.34 nm aperture size were separately dispersed into different polymer matrix, to prepare the mixed matrix membranes (MMMs) for gas separation. The dispersed situation of the SAPO-34 and ZIF-8 particles in matrix and the influence of the fillers on the separation performance of the membrane had been investigated in this study. The as-synthesized MMMs showed a better trade-off between permeability and selectivity than the pure polymer membrane and the performance could exceed or close to the upper bound line of polymer membrane for CO2 and CH4 separation. The CO2 permeability and CO2/CH4 ideal selectivity of the 6FDA-mDAT MMM containing 40 wt% SAPO-34 zeolite was 190 barrer and ca. 60, respectively. The 6FDA-TrMPD based MMMs containing 20 wt% ZIF-8 provided a permeability of C3H6 and an ideal selectivity of C3H6/C3H8 at 24 barrer and ca. 17, respectively. These separation performances were in a suitable agreement of the theoretical value from Maxwell model.

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Mutual influence in permeation of CO2-containing mixtures through a SAPO-34 membrane

Zito

Brunetti

Caravella

et al. 2020

Journal of Membrane Science

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Preparation and Permeation Properties of PESU-Based Mixed Matrix Membranes with Nano-Sized CHA Zeolites

Cited by 11 publications

References 21 publications

Investigation of Gas Diffusivity and Solubility of PES based Mixed Matrix Membranes Using Commercial SAPO-34 Zeolite

Investigation of Gas Diffusivity and Solubility of PES based Mixed Matrix Membranes Using Commercial SAPO-34 Zeolite

Nano-porous Zeolite and MOF Filled Mixed Matrix Membranes for Gas Separation

Mutual influence in permeation of CO2-containing mixtures through a SAPO-34 membrane

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