MOF-801 incorporated PEBA mixed-matrix composite membranes for CO2 capture

Sun, Jiajia; Li, Qianqian; Chen, Guining; Duan, Jingui; Liu, Gongping; Jin, Wanqin

doi:10.1016/j.seppur.2019.02.036

Cited by 144 publications

(65 citation statements)

References 44 publications

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“…In addition, it seems that permeability of the specified gases was not affected significantly by PL addition, as a result of the molecular structure of PEBA chain, which is composed of compact homochiral sheets. This form makes it difficult for molecules to pack and rearrange and fill space [17], even at the lowest concentration of GA (PEBA2). When GA loading was increased from 0.05 to 0.4 wt.%, permeability of CO 2 and CH 4 gases increased from 88.12 to 197.86 Barrer (increasing by~56%) and from 3.74 to 6.10 (increasing by~39%) Barrer, respectively ( Figure 10A), where the presence of GA restricts the conformational freedom of PEBA chains in its vicinity, which may frustrate PEBA chain ability to group together and cause a curvature of the surface at the nanoscale [58], thus increments of the PEBA amorphous structure, fractional free volume and chain mobility as a result of decreasing in the crystallinity of the synthesized membranes (confirmed by the XRD and FTIR results), which causes a significant increase in CO 2 permeability and a little in CH 4 permeability of the synthesized membranes [59].…”

Section: Gas Permeation Performancementioning

confidence: 99%

“…Among these polymer membranes, PEBA is classified as one of the most promising polymer membranes with high efficiency in CO 2 separation due to its high CO 2 permeability and CO 2 /CH 4 selectivity [15,16]. In order to improve their permeability and selectivity and make them fulfil the industrial requirements and increase stability for the long term, PEBA mixed-matrix composite membranes (MCM) were developed to address these aspects through mixing or modifying PEBA by other additives or chemical treatments [17,18].…”

Section: Introductionmentioning

confidence: 99%

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A New Industrial Technology for Mass Production of Graphene/PEBA Membranes for CO2/CH4 Selectivity with High Dispersion, Thermal and Mechanical Performance

et al. 2020

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Polyether block amide (PEBA) nanocomposite membranes, including Graphene (GA)/PEBA membranes are considered to be a promising emerging technology for removing CO2 from natural gas and biogas. However, poor dispersion of GA in the produced membranes at industrial scale still forms the main barrier to commercialize. Within this frame, this research aims to develop a new industrial approach to produce GA/PEBA granules that could be used as a feedstock material for mass production of GA/PEBA membranes. The developed approach consists of three sequential phases. The first stage was concentrated on production of GA/PEBA granules using extrusion process (at 170–210 °C, depending on GA concentration) in the presence of Paraffin Liquid (PL) as an adhesive layer (between GA and PEBA) and assisted melting of PEBA. The second phase was devoted to production of GA/PEBA membranes using a solution casting method. The last phase was focused on evaluation of CO2/CH4 selectivity of the fabricated membranes at low and high temperatures (25 and 55 °C) at a constant feeding pressure (2 bar) using a test rig built especially for that purpose. The granules and membranes were prepared with different concentrations of GA in the range 0.05 to 0.5 wt.% and constant amount of PL (2 wt.%). Also, the morphology, physical, chemical, thermal, and mechanical behaviors of the synthesized membranes were analyzed with the help of SEM, TEM, XRD, FTIR, TGA-DTG, and universal testing machine. The results showed that incorporation of GA with PEBA using the developed approach resulted in significant improvements in dispersion, thermal, and mechanical properties (higher elasticity increased by ~10%). Also, ideal CO2/CH4 selectivity was improved by 29% at 25 °C and 32% at 55 °C.

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Section: Gas Permeation Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Industrial Technology for Mass Production of Graphene/PEBA Membranes for CO2/CH4 Selectivity with High Dispersion, Thermal and Mechanical Performance

et al. 2020

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“…They are used for separation [110]. Different researchers have reported membrane used for the capture of harmful gases in literature [17, 111,112] as they are environmentally benign and efficient in energy consumption [113] and exhibit technical and cost-related merits [114].…”

Section: Membranesmentioning

confidence: 99%

“…Various studies on the use of membrane for the capture of CO 2 and H 2 S, have also been reported [110,112,[122][123][124][125][126].…”

Section: Fig 5 Separation Of Different Molecules Using Membrane [118]mentioning

confidence: 99%

Adsorbents for Noxious Gas Sequestration: State of the Art

Aimikhe

Eyankware

2019

JSRR

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Adsorbents such as metal-organic frameworks (MOFs), polymers, activated carbon (AC), and membranes are becoming prominent for CO2, SO2, H2S and NH3 capture and in some cases, storage. Using the standard adsorbent properties (SAPs) such as adsorption capacity, selectivity, permeability/permeance, regenerability and reusability, ease of functionability and tunability, thermal and chemical stability, suitable candidates for noxious gas sequestration can be determined. To foster the development and selection of a more efficient adsorbent, proper documentation of adsorbent performance in terms of SAPs is crucial. In this study, a critical review of metal-organic framework (MOF), polymer, activated carbon (AC) and membrane adsorbents was performed. Using the SAPs, an up to date comparative analysis was done to select the best performing adsorbents. The results of the comparative analysis were then used to categorize the adsorbents' suitability for pre-combustion and post-combustion applications. A perspective of future study on adsorbents for noxious gas sequestration was also presented.

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“…PEBA 1657, a polyether block amide composed of 40% polyamide (PA) and 60% polyethylene oxide (PEO), was selected as the polymer material. The impacts of different fillers including MOFs, [25][26][27][28][29][30] carbon nanotubes, 31,32 zeolites, [33][34][35] and other 2D and 3D inorganic materials [36][37][38] were investigated to enhance the CO 2 \CH 4 separation properties of PEBA. It is expected that the flexible structure of polymer chains displays sufficient compatibility with the particles to prohibit sieve-in-a-cage and rigidification defects at the polymer-particle interface.…”

Section: Introductionmentioning

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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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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MOF-801 incorporated PEBA mixed-matrix composite membranes for CO2 capture

Cited by 144 publications

References 44 publications

A New Industrial Technology for Mass Production of Graphene/PEBA Membranes for CO2/CH4 Selectivity with High Dispersion, Thermal and Mechanical Performance

A New Industrial Technology for Mass Production of Graphene/PEBA Membranes for CO2/CH4 Selectivity with High Dispersion, Thermal and Mechanical Performance

Adsorbents for Noxious Gas Sequestration: State of the Art

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

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MOF-801 incorporated PEBA mixed-matrix composite membranes for CO2 capture

Cited by 144 publications

References 44 publications

A New Industrial Technology for Mass Production of Graphene/PEBA Membranes for CO2/CH4 Selectivity with High Dispersion, Thermal and Mechanical Performance

A New Industrial Technology for Mass Production of Graphene/PEBA Membranes for CO2/CH4 Selectivity with High Dispersion, Thermal and Mechanical Performance

Adsorbents for Noxious Gas Sequestration: State of the Art

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

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