Improved operational stability of Pebax-based gas separation membranes with ZIF-8: A comparative study of flat sheet and composite hollow fibre membranes

Sutrisna, Putu Doddy; Hou, Jingwei; Li, Hongyu; Zhang, Yatao; Chen, Vicki

doi:10.1016/j.memsci.2016.11.048

Cited by 200 publications

(159 citation statements)

References 61 publications

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“…The patterns verified that the structure of the filler did not alter upon becoming embedded in the PEBA matrix. PEBA offered a broad peak from 15 to 25 indicating an amorphous region, combined with a distinct peak at 24.1, suggesting the presence of crystalline PA. 52 With increased filler loading, www.soci.org A Erfani, M Asghari wileyonlinelibrary.com/jctb individual peaks of CuBTC appeared and sharpened in intensity. The graph proves that the crystallinity and 3D structure of particles were preserved during MMM fabrication and that no phase change occurred due to water-CuBTC reaction.…”

Section: Resultsmentioning

confidence: 99%

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Comparison of micro‐ and nano‐sized CuBTC particles on the CO₂/CH₄ separation performance of PEBA mixed matrix membranes

Erfani

Asghari

2020

J of Chemical Tech & Biotech

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BACKGROUND: Copper-benzene-1, 3, 5-tricarboxylic acid (CuBTC) is a pre-eminent member of the metal-organic framework material family with excellent CO 2 adsorption capacity and size-sieving characteristics for CO 2 /methane (CH 4) separation. Although a few reports have addressed the use of micro-sized CuBTC particles in mixed matrix membranes (MMMs), the application of nano-sized particles has not yet been explored. RESULTS: Micro-sized and nano-sized CuBTC particles were synthesized by Cu(NO 3) 2 •3H 2 O and Cu(OH) 2 precursors, respectively. Mixed matrix membranes composed of 5-35 wt% CuBTC in poly (amide-6-b-ethylene oxide) (PEBA) were fabricated to investigate the CO 2 /CH 4 separation performance of the samples. Synthesized particles and membranes were characterized by X-ray diffraction, Fourier transform infrared and field emission scanning electron microscopy techniques. Membrane separation performance was determined at different pressures of pure CO 2 , CH 4 and N 2. At 35 wt% loading of nano-sized CuBTC, CO 2 permeability and CO 2 /CH 4 selectivity were enhanced to 178.9 Barrer and 34.6; 80.3% and 13.8% higher than those of pristine polymer, respectively. The corresponding results for micro-sized CuBTC were 138.9 Barrer and 33.9. A mixed gas permeation test carried out on a mixture of CO 2-CH 4 (10:90 mol%) at 12 bar showed the best separation performance at 25 wt% loading of nano-sized CuBTC with CO 2 permeability of 92.6 Barrer and CO 2 /CH 4 selectivity of 23.1. CONCLUSION: Filler size had a great impact on the MMM separation performance. As a result of the nano-sizing of CuBTC particles, higher CO 2 permeability and CO 2 /CH 4 selectivity could be obtained because of the uniform dispersion of the filler in the matrix and higher interface area/volume.

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Section: Resultsmentioning

confidence: 99%

“…Among various studies on PEBA membranes, there are few reports on unsteady permeate flow. 52 As ignoring the mentioned effects may cause systematic errors in the results, CH 4 permeability was specifically assessed by allocating a new raw membrane for every feed pressure measurement.…”

Section: Gas Separation Performance Pure Gasmentioning

confidence: 99%

Comparison of micro‐ and nano‐sized CuBTC particles on the CO₂/CH₄ separation performance of PEBA mixed matrix membranes

Erfani

Asghari

2020

J of Chemical Tech & Biotech

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“…Hence, no significant molecular sieving mechanism did occur for CO 2 , N 2 , and CH 4 through HKUST‐1 . Thus, various researchers shifted to the submicron family of MOFs being zeolitic imidazolate frameworks, for the development of HFMMMs in CO 2 separation , , .…”

Section: Performances Of Hfmmms In Co2/n2and Co2/ch4separationmentioning

confidence: 99%

“…Thus, in the light of these arguments, HFMMMs could be an alternative due to numerous advantages including compact module design, low cost, and high surface area which make them more appropriate for industrial applications . Thus, various researchers focused on the fabrication of HFMMMs for CO 2 removal processes.…”

Section: Introductionmentioning

confidence: 99%

Issues and Current Trends of Hollow‐Fiber Mixed‐Matrix Membranes for CO₂Separation from N₂and CH₄

et al. 2017

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To control CO 2 emission from industries, membrane technology is preferred over conventional technologies due to its numerous advantages including reliability, operational simplicity, and low capital cost. Hollow-fiber mixed-matrix membranes (HFMMMs) exhibit great potential for CO 2 separation. Various inorganic fillers were incorporated into different types of polymeric materials for fabrication of HFMMMs. This review focuses on the performance and issues of HFMMMS based on various materials for CO 2 /CH 4 and CO 2 /N 2 separation. Major features are reflected in the following three aspects: comprehensive study on the performance of HFMMMs for CO 2 /N 2 and CO 2 /CH 4 separation, issues with the fabrication of HFMMMs in CO 2 /N 2 and CO 2 /CH 4 separation, and prediction of transport models for HFMMMs in gas separation.

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“…Within current challenges in progressing MMMs beyond Robeson's upper bound, the proper selection of the combination of filler and polymer has been largely found to be critical in the attainment of enhanced MMM performance (Chung et al, 2007;Tanh Jeazet et al, 2012). Yet, the membrane geometrical structure has been identified to play a significant role in the implementation of membrane technologies in practical applications (Rownaghi et al, 2017;Sutrisna et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Comparison of hollow fiber and flat mixed-matrix membranes: Theory and simulation

Monsalve-Bravo

Bhatia

2018

Chemical Engineering Science

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Improved operational stability of Pebax-based gas separation membranes with ZIF-8: A comparative study of flat sheet and composite hollow fibre membranes

Cited by 200 publications

References 61 publications

Comparison of micro‐ and nano‐sized CuBTC particles on the CO₂/CH₄ separation performance of PEBA mixed matrix membranes

Comparison of micro‐ and nano‐sized CuBTC particles on the CO₂/CH₄ separation performance of PEBA mixed matrix membranes

Issues and Current Trends of Hollow‐Fiber Mixed‐Matrix Membranes for CO₂Separation from N₂and CH₄

Comparison of hollow fiber and flat mixed-matrix membranes: Theory and simulation

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Improved operational stability of Pebax-based gas separation membranes with ZIF-8: A comparative study of flat sheet and composite hollow fibre membranes

Cited by 200 publications

References 61 publications

Comparison of micro‐ and nano‐sized CuBTC particles on the CO2/CH4 separation performance of PEBA mixed matrix membranes

Comparison of micro‐ and nano‐sized CuBTC particles on the CO2/CH4 separation performance of PEBA mixed matrix membranes

Issues and Current Trends of Hollow‐Fiber Mixed‐Matrix Membranes for CO2Separation from N2and CH4

Comparison of hollow fiber and flat mixed-matrix membranes: Theory and simulation

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Comparison of micro‐ and nano‐sized CuBTC particles on the CO₂/CH₄ separation performance of PEBA mixed matrix membranes

Comparison of micro‐ and nano‐sized CuBTC particles on the CO₂/CH₄ separation performance of PEBA mixed matrix membranes

Issues and Current Trends of Hollow‐Fiber Mixed‐Matrix Membranes for CO₂Separation from N₂and CH₄