Adsorption of nitrogen, hydrogen, methane, and carbon oxides on micro- and mesoporous molecular sieves of different nature

Yaremov, P. S.; Scherban, N. D.; Ilyin, Vladimir G.

doi:10.1007/s11237-013-9287-9

Cited by 8 publications

(14 citation statements)

References 10 publications

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“…The adsorption capacity for CO 2 is the highest, followed by CH 4 and N 2. This is expected due to the strong quadrupole moment and greater polarizability of CO 2 contributing to increased adsorption potential . The adsorption isotherms are in agreement with previous studies in the literature for the adsorption of these gases on silicalite‐1 .…”

Section: Resultssupporting

confidence: 90%

“…This is expected due to the strong quadrupole moment and greater polarizability of CO 2 contributing to increased adsorption potential. [23,29] The adsorption isotherms are in agreement with previous studies in the literature for the adsorption of these gases on silicalite-1. [15,24,25] Using the adsorption equilibrium isotherms, the corresponding ideal adsorption selectivity for CO 2 /N 2 , CO 2 /CH 4 , and CH 4 /N 2 gases were determined from the ratio of the equilibrium adsorption capacities, and the results are presented in Figure 5b.…”

Section: Silicalite-1 Single Gas Adsorption Isotherms and Diffusion Ksupporting

confidence: 89%

“…Adsorption potential for the studied adsorbate gases occurs in the following increasing order for silicalite‐1: He << N 2 < CH 4 < CO 2 . The maximum for CO 2 is attributed to high polarizability and a strong quadrupole interaction with the adsorption sites . CH 4 has stronger polarizability compared to N 2 contributing to increased adsorption potential.…”

Section: Introductionmentioning

confidence: 99%

“…The maximum for CO 2 is attributed to high polarizability and a strong quadrupole interaction with the adsorption sites. [23][24][25][26] CH 4 has stronger polarizability compared to N 2 contributing to increased adsorption potential. Table 1 presents the different molecular properties of the studied adsorbate gases.…”

Section: Introductionmentioning

confidence: 99%

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Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO₂ supports: Effect of support pore size on membrane performance

et al. 2018

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In this study, we present a detailed synthesis procedure and characterization of porous inorganic silicalite‐1 membranes. The membranes were synthesized in‐situ using a pore plugging method with the inclusion of a 12 h thermal break promoting secondary growth within the active layer pores of the tubular TiO2 supports. The effect of the support pore size on membrane performance was examined with pore sizes ranging from 0.3 μm to 1.4 μm. Characterization using SEM and EDS analysis confirm the penetration and formation of silicalite‐1 crystals within porous supports up to a depth of 10–12 µm for all membranes. With the exception of the membranes synthesized on the support with 1.4 μm pore size, all membranes were more permeable to probe gas N2 compared to He. The highest ideal N2/He selectivity of 2.3 ± 0.5 was observed for the membranes synthesized on supports with 0.8 μm pore size. Single gas permeance for the membranes was high, ranging between 3.7 × 10−7 and 1.3 × 10−5 mol/m2sPa, and was independent of gas kinematic diameter with the order of permeation being CH4 > CO2 > N2 > He. Binary equimolar CO2/N2 separation experiments show better membrane CO2/N2 permselectivity compared to the ideal selectivity calculated from the single gas experiments. Comparing the observed membrane gas diffusivity and the adsorbate gas uptake rate within the zeolite material alone shows that these favourable selective properties are the result of adsorption surface diffusion and that Knudsen diffusion is minimized.

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Section: Resultssupporting

confidence: 90%

Section: Silicalite-1 Single Gas Adsorption Isotherms and Diffusion Ksupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO₂ supports: Effect of support pore size on membrane performance

et al. 2018

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“…They are biocompatible [14] and have been used for a larger range of applications including gas storage, filtration and catalytic processes, incorporation of additives for textile applications, among others [15]. Their ability to absorb molecules is related to the zeolite channel geometry and the chemical nature of the ions present in the zeolite structure [13,16].…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylidene fluoride-trifluoroethylene)/NAY zeolite hybrid membranes as a drug release platform applied to ibuprofen release

Salazar

Lima

Lopes

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Methane preconcentration by adsorption: a methodology for materials and conditions selection

et al. 2014

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Methane (CH 4) adsorption has been widely studied, mainly in the context of natural gas purification. A much less prominent, but highly relevant application is the preconcentration of CH 4 from ambient air. In this study, we compare six different commercial adsorbent materials with respect to their effectiveness for methane preconcentration: a macroporous polymeric resin (HayeSep D), multi-walled carbon nanotubes, two microporous metal-organic frameworks (HKUST-1 and ZIF-8), and two zeolites (5A and 13X). The most relevant properties, such as isosteric enthalpy of adsorption, specific surface area and the selectivity for CH 4 adsorption over N 2 were characterized by analyzing adsorption/desorption isotherms. Using these parameters, we discuss the tested adsorbents with respect to the most important properties and identify the most promising candidates. Furthermore we identify the experimental conditions that are expected to give the best results with respect to practical applications.

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Adsorption of nitrogen, hydrogen, methane, and carbon oxides on micro- and mesoporous molecular sieves of different nature

Cited by 8 publications

References 10 publications

Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO₂ supports: Effect of support pore size on membrane performance

Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO₂ supports: Effect of support pore size on membrane performance

Poly(vinylidene fluoride-trifluoroethylene)/NAY zeolite hybrid membranes as a drug release platform applied to ibuprofen release

Methane preconcentration by adsorption: a methodology for materials and conditions selection

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Adsorption of nitrogen, hydrogen, methane, and carbon oxides on micro- and mesoporous molecular sieves of different nature

Cited by 8 publications

References 10 publications

Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO2 supports: Effect of support pore size on membrane performance

Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO2 supports: Effect of support pore size on membrane performance

Poly(vinylidene fluoride-trifluoroethylene)/NAY zeolite hybrid membranes as a drug release platform applied to ibuprofen release

Methane preconcentration by adsorption: a methodology for materials and conditions selection

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Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO₂ supports: Effect of support pore size on membrane performance

Pore plugging synthesis and characterization of silicalite‐1 membranes using tubular TiO₂ supports: Effect of support pore size on membrane performance