Na+/Ca2+ aqueous ion exchange in natural clinoptilolite zeolite for polymer-zeolite composite membranes production and their CH4/CO2/N2 separation performance

Montes‐Luna, Ángel de Jesús; León, Griselda Castruita de; Rodríguez, Sandra P. García; López, Nidia C. Fuentes; Pérez‐Camacho, Odilia; Mercado, Yibran A. Perera

doi:10.1016/j.jngse.2018.03.007

Cited by 32 publications

(15 citation statements)

References 25 publications

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“…A customized mixed‐gas permeation apparatus previously reported elsewhere was used for the gas permeability measurements using a gas mixture of CH 4 and CO 2 (molar percentage 95/5). The two‐part permeation cell (upstream side and downstream side) is made of 316 stainless steel, where the membrane is located between them supported onto a porous ceramic disk.…”

Section: Methodsmentioning

confidence: 99%

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO₂/CH₄ separation

León

Yeverino‐Miranda²,

Montes‐Luna³

et al. 2019

J of Applied Polymer Sci

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Flat mixed matrix membranes (MMMs) comprising polysulfone and clinoptilolite-type natural zeolite were prepared by casting. Zeolite was modified with three alkylamines: ethanolamine (EA), bis(2-hydroxypropyl)amine (BHPA), and polyethylenimine (PEI) by the impregnation method. Impregnated zeolite samples were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, and N 2 adsorption-desorption. The alkylamine loading extent determined by thermogravimetric analysis was 5.2, 4.8, and 8.5% for EA, BHPA, and PEI, respectively. Analyses of MMMs showed that the incorporation of impregnated zeolite affected the glasstransition temperature (T g ) and mixed-gas transport properties. In this regard, a decreasing trend of the T g values from 185.5 C for the polymeric membrane up to 176.6 C for Clino-EA-based MMM was recorded. In addition, the gas separation performance was evaluated at two different feed pressures. At 50 psi, MMMs showed an enhancement up to 30% on the CO 2 permeability (22.79 Barrer) and 55% on the CO 2 /CH 4 selectivity (45.78) in comparison with the polymeric membrane (CO 2 permeability 17.34 Barrer; CO 2 /CH 4 selectivity 29.38). These values varied depending on the alkylamine, BHPA being the most selective.

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Section: Methodsmentioning

confidence: 99%

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO₂/CH₄ separation

León

Yeverino‐Miranda²,

Montes‐Luna³

et al. 2019

J of Applied Polymer Sci

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“…The mixture was maintained with vigorous magnetic stirring at~1,000 rpm for 4 h. Then, the material was filtered and dried for 24 h at 60 C in a vacuum oven. [19][20][21][22][23][24][25] polycondensation in solution using polyphosphoric acid (PPA) as solvent, following the method reported by Bhavsar et. al 7 as described below: in a three-necked flask equipped with mechanical stirrer and N 2 atmosphere, was added the PPA (60 g) and heated to 120 C. Subsequently, 0.0093 mol (1.99 g) of 3,3 0 -diaminobenzidine (DAB) was added to the flask containing the PPA, and the solution was mixed with vigorous stirring for a period of 5 h. After elapsed time, an equimolar amount of 0.0093 mol (1.54 g) of isophthalic acid was added, and the temperature of the reaction mixture increased to 190 C for 12 hr.…”

Section: Clinoptilolite Zeolite Enriched With Cations Of Ca 2+mentioning

confidence: 99%

“…[15][16][17][18][19] On the other hand, it has been reported that the cation (Mg 2+ , Ca 2+ , among others) exchanged in clinoptilolite zeolites have shown improvement in the selective adsorption of N 2 /CH 4 gases mixtures. [19][20][21][22][23][24][25] Finally, the results of this work showed that MMMs based on PBI with clinoptilolite zeolite enriched with cations Ca 2+ have a potential application in gases separation of binary (N 2 /CH 4 ) and ternary (CO 2 /N 2 /CH 4 ) mixtures in order to obtain high purity methane from natural gas streams.…”

Section: Introductionmentioning

confidence: 99%

“…Zeolite clinoptilolite enriched with Ca 2+ ions were prepared through a cationic exchange modification process of the natural zeolite clinoptilolite. [20][21] Ultra-high-purity gases such as helium, binary N 2 /CH 4 (10/90 mol%) and ternary CO 2 /N 2 /CH 4 (5/10/85 mol%) mixed gases for permeation tests were supplied by Infra, Naucalpan, Mexico.…”

Section: Introductionmentioning

confidence: 99%

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PBI/Clinoptilolite mixed‐matrix membranes for binary (N₂/CH₄) and ternary (CO₂/N₂/CH₄) mixed gas separation

Montes‐Luna

López

León

et al. 2020

J of Applied Polymer Sci

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In this work, polybenzimidazole (PBI)-based mixed matrix membranes (MMMs) with natural zeolite were prepared and their transport properties for binary (N 2 /CH 4) and ternary (CO 2 /N 2 /CH 4) mixed-gas separation were studied. The MMMs, were prepared with PBI as polymeric matrix and Mexican natural zeolite clinoptilolite enriched with cations of Ca 2+ as filler. The thermal properties analysis of the PBI and MMMs studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) indicates that the MMMs membranes have Tg higher than 350 C and decomposition temperatures above 600 C compared with the pristine membranes. PBI membrane and MMMs were analyzed by X-Ray Diffraction (XRD) and the diffraction patterns showed the zeolite signals combine with the amorphous dome from the polymeric matrix. In addition, the perm-selectivity properties of the polymeric membranes and MMMs were tested with binary (N 2 /CH 4 ; 10/90 mol%) and ternary (CO 2 /N 2 /CH 4 ; 5/10/85 mol%) gas mixtures at different pressure rates (50, 150 and 300 psi). The perm-selectivity properties of the MMMs membranes show an improvement in their values about 30% higher compared to the PBI polymeric membranes, favoring the permeation of CO 2 and N 2 .

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“…With regard to such membranes, many different types of filler materials (e.g., MOF-801 nanocrystal, TiO 2 nanoparticles, Fe 2 O 3 nanoparticles, nanozeolite, zeolite 13X nanoporous, carbon nanotubes, SiO 2 , Al 2 O 3 , etc.) were mixed or deposited onto a PEBA layer to create selective transport channels for gas separation [19][20][21][22][23][24][25][26][27]. Although many studies demonstrated that due to its unique properties, Graphene Oxide (GO) as a nanofiller has high CO 2 selectively [28,29], but its potential application with PEBA in gas separation has not been analyzed yet.…”

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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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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Na+/Ca2+ aqueous ion exchange in natural clinoptilolite zeolite for polymer-zeolite composite membranes production and their CH4/CO2/N2 separation performance

Cited by 32 publications

References 25 publications

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO₂/CH₄ separation

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO₂/CH₄ separation

PBI/Clinoptilolite mixed‐matrix membranes for binary (N₂/CH₄) and ternary (CO₂/N₂/CH₄) mixed gas separation

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

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Na+/Ca2+ aqueous ion exchange in natural clinoptilolite zeolite for polymer-zeolite composite membranes production and their CH4/CO2/N2 separation performance

Cited by 32 publications

References 25 publications

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO2/CH4 separation

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO2/CH4 separation

PBI/Clinoptilolite mixed‐matrix membranes for binary (N2/CH4) and ternary (CO2/N2/CH4) mixed gas separation

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

Contact Info

Product

Resources

About

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO₂/CH₄ separation

Amine‐impregnated natural zeolite as filler in mixed matrix membranes for CO₂/CH₄ separation

PBI/Clinoptilolite mixed‐matrix membranes for binary (N₂/CH₄) and ternary (CO₂/N₂/CH₄) mixed gas separation