Influence of support morphology on the detemplation and permeation of ZSM-5 and SSZ-13 zeolite membranes

Kosinov, Nikolay; Auffret, Clement; Sripathi, V.G.P.; Gücüyener, Canan; Gascón, Jorge; Kapteijn, Freek; Hensen, Emiel J. M.

doi:10.1016/j.micromeso.2014.06.022

Cited by 47 publications

(28 citation statements)

References 52 publications

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“…By referring to Kumar's result [35], it is reported that the small value of surface roughness at 0.18, 0.12 and 0.04 m is obtained by dip coating of ␥-alumina layers on ␥-alumina membrane and produce no cracks. However, later result by Kosinov et al [36] shows a reverse mechanism, which stated that rougher surface should be obtained in avoiding cracking of the SSZ-13 zeolite layer during its detemplation. Therefore, it suggests that the ceramic support roughness should depend on the type of layer material coated on the support.…”

Section: Surface Roughnessmentioning

confidence: 96%

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Hubadillah

Harun

Othman

et al. 2016

Journal of Asian Ceramic Societies

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a b s t r a c tIn this study, low cost ceramic supports were prepared from kaolin via phase inversion technique with two kaolin particle sizes, which are 0.04-0.6 m (denoted as type A) and 10-15 m (denoted as type B), at different kaolin contents ranging from 14 to 39 wt.%, sintered at 1200 • C. The effect of kaolin particle sizes as well as kaolin contents on membrane structure, pore size distribution, porosity, mechanical strength, surface roughness and gas permeation of the support were investigated. The support was prepared using kaolin type A induced asymmetric structure by combining macroporous voids and sponge-like structure in the support with pore size of 0.38 m and 1.05 m, respectively, and exhibited ideal porosity (27.7%), great mechanical strength (98.9 MPa) and excellent gas permeation. Preliminary study shows that the kaolin ceramic support in this work is potential to gas separation application at lower cost.

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Section: Surface Roughnessmentioning

confidence: 96%

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Hubadillah

Harun

Othman

et al. 2016

Journal of Asian Ceramic Societies

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“…[4] The gas permeability are quite sensitive to the thickness of membrane materials. [5,6,7] Therefore, the ideal membrane should be as thin as possible to receive maximum flux, mechanically robust to prevent cracking, and with well−defined pore sizes to increase selectivity. It is highly desirable to design the efficient He separation membrane having atomic thickness and sub−nanometer pores.…”

Section: Introductionmentioning

confidence: 99%

Theoretical design of a strain-controlled nanoporous CN membrane for helium separation

Rao

Chu

et al. 2019

Computational Materials Science

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Designing an efficient membrane for He purification is quite crucial in scientific and industrial applications. Ultrathin membranes with intrinsic pores are highly desirable for gas purification because of their controllable aperture and homogeneous hole distribution. Based on the first−principles density function theory and molecular dynamics simulations, we demonstrate that the compressively strained graphitic carbon nitride (CN) can effectively purify He from Ne and Ar. Under a −6% strain, the CN monolayer with a suitable pore size presents an easily surmountable barrier for He (0.11 eV) but formidable for Ne (0.51 eV) and Ar (2.45 eV) passing through the membrane, and it exhibits exceptionally high selectivity of 5.17 × 10 6 for He/Ne and 1.89 × 10 39 for He/Ar, as well as excellent He permeance of 1.94 × 10 7 GPU at room temperature, superior to those of porous graphene and C 2 N membrane. Our results confirm that strain−tuned CN membrane could be potentially utilized for He separating from other noble gases.

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“…In particular, the high-silica zeolite membrane had low polarity and few non-zeolitic molecular trafficking pathways [25,26,27]. In addition, the high-silica SSZ-13 membrane was successfully prepared on α-alumina hollow fibers, the optimal CO 2 permeance and CO 2 /CH 4 separation of the membrane were 2.5 × 10 −7 mol/(m 2 ·s·Pa) [28]. In order to prepare a high silica SSZ-13 zeolite membrane, the SiO 2 /Al 2 O 3 ratio of the initial synthesis gel was up to 40 in our previous study [3].…”

Section: Introductionmentioning

confidence: 99%

Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes

et al. 2018

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Continuous and high silica SSZ-13 zeolite membranes were prepared on porous mullite supports from high SiO2/Al2O3 ratio or aluminum-free precursor synthesis gel. Single gas permeance (CO2 and CH4) of the high silica SSZ-13 zeolite membrane was decreased with the SiO2/Al2O3 ratio in the precursor synthesis gel, while the ideal CO2/CH4 selectivity of the membrane was gradually increased. Moreover, effects of synthesis conditions (such as H2O/SiO2 and RNOH/SiO2 ratios of precursor synthesis gel, crystallization time) on the single gas permeance performance of high silica SSZ-13 zeolite membranes were studied in detail. Medium H2O/SiO2 and RNOH/SiO2 ratios in the initial synthesis gel were crucial to prepare the good CO2 perm-selective SSZ-13 zeolite membrane. When the molar composition of precursor synthesis gel, crystallization temperature and time were 1.0 SiO2: 0.1 Na2O: 0.1 TMAdaOH: 80 H2O, 160 °C and 48 h, CO2 permeance and ideal CO2/CH4 selectivity of the SSZ-13 zeolite membrane were 0.98 × 10−7 mol/(m2·s·Pa) and 47 at 25 °C and 0.4 MPa. In addition, the SiO2/Al2O3 ratio of the corresponding SSZ-13 zeolite was 410 by X-ray fluorescence spectroscopy.

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Influence of support morphology on the detemplation and permeation of ZSM-5 and SSZ-13 zeolite membranes

Cited by 47 publications

References 52 publications

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Effect of kaolin particle size and loading on the characteristics of kaolin ceramic support prepared via phase inversion technique

Theoretical design of a strain-controlled nanoporous CN membrane for helium separation

Single Gas Permeance Performance of High Silica SSZ-13 Zeolite Membranes

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