Gas Separation Performance of SSZ-13 Zeolite Membranes on Different Supports

Gao, Tian; Chen, Xiaopan; Zhu, Meihua; An, Xingguo; Wu, Ting; Zhang, Fei; Chen, Xiangshu; Kita, Hidetoshi

doi:10.1021/acs.energyfuels.1c02026

Cited by 14 publications

(4 citation statements)

References 34 publications

(73 reference statements)

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“…Overall, it is hard for small-pore zeolite membranes to compete with polymer membranes for CO 2 /N 2 separation unless their selectivity can be significantly improved without sacrificing membrane permeance. [14,15,47,51,55,59,61,63,68,69,76,77,81,86,87,99,[105][106][107][108][109][110][111][112]. * denotes results from pure gas permeation tests.…”

Section: Co 2 /Nmentioning

confidence: 99%

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Small-Pore Zeolite Membranes: A Review of Gas Separation Applications and Membrane Preparation

2022

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There have been significant advancements in small-pore zeolite membranes in recent years. With pore size closely related to many energy- or environment-related gas molecules, small-pore zeolite membranes have demonstrated great potential for the separation of some interested gas pairs, such as CO2/CH4, CO2/N2 and N2/CH4. Small-pore zeolite membranes share some characteristics but also have distinctive differences depending on their framework, structure and zeolite chemistry. Through this mini review, the separation performance of different types of zeolite membranes with respect to interested gas pairs will be compared. We aim to give readers an idea of membrane separation status. A few representative synthesis conditions are arbitrarily chosen and summarized, along with the corresponding separation performance. This review can be used as a quick reference with respect to the influence of synthesis conditions on membrane quality. At the end, some general findings and perspectives will be discussed.

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Section: Co 2 /Nmentioning

confidence: 99%

“…Figure2. CO 2 /N 2 separation performance for different types of small-pore zeolite membranes[14,15,47,51,55,59,61,63,68,69,76,77,81,86,87,99,[105][106][107][108][109][110][111][112]. * denotes results from pure gas permeation tests.…”

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confidence: 99%

Small-Pore Zeolite Membranes: A Review of Gas Separation Applications and Membrane Preparation

2022

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“…In addition to ZSM-5, some mesoporous zeolites such as SBA-15, , MCM-41, , MCM-48, and silicalite-1 , also serve as support for PDH catalysts. SSZ-13 is a zeolite that has a three-dimensional porous structure and eight-membered rings with a CHA structure. , Because of its uniform channel and acidity, SSZ-13 is usually used for the separation of CO 2 from natural gas and as the catalyst for methanol to olefins (MTO) . SSZ-13 should be the suitable support for Pt-based catalysts of PDH because of its high specific surface area, regulated acidity, and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

Copper-Promoted Platinum Supported on HSSZ-13 Zeolite Catalysts for Propane Dehydrogenation to Propylene

Fu,

Ma,

Qian

et al. 2024

Energy Fuels

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Pt/HSSZ-13 with 0.5−3 wt % Pt load and PtCu/ HSSZ-13 with 1−7 wt % Cu load were prepared by the initial wetness impregnation method. Without compromising the original crystal structure and surface texture characteristics, doped Pt and Cu are dispersed uniformly throughout the surface. The Si/Al molar ratio affected not only the texture of the crystal but also the number of acid sites on the catalyst surface. The appropriate addition of Cu significantly increased the dispersion of Pt. The addition of Cu also provided electrons to Pt, affected the electron cloud density on the surface of Pt, and then reduced the adsorption of propylene and improved the selectivity of propylene. Cu can also decrease the number of acidic sites on the catalyst surface, thus slowing the deactivation rate of the catalyst and the amount of carbon deposition during the reaction. 1.0Pt3.0Cu/HSSZ-13(40) had a small number of strong acid sites (3.89 μmol/g) and showed the best propane initial conversion (73.95%), excellent propylene selectivity (97.60%), lowest deactivation constant (0.33 h −1 ), and good regeneration robustness.

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“…An additional seeding step is necessary for seeded synthesis but not for in situ synthesis. The current CHA-type zeolite membranes including low-silica chabazite, , high-silica SSZ-13 ,− and pure-silica CHA (Si-CHA) membranes , were prepared by seeded synthesis. The uniformity of the seed layer coated on porous support surfaces is a big issue, which increases the complexity of membrane synthesis.…”

Section: Introductionmentioning

confidence: 99%

In Situ Synthesis of Cation-Free Zirconia-Supported Zeolite CHA Membranes for Efficient CO₂/CH₄ Separation

Wang

Dang

Bai

et al. 2023

ACS Appl. Mater. Interfaces

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Cation-free zirconosilicate zeolite CHA and thin zirconia-supported membranes were in situ synthesized in a fluoride-free gel for the first time. The usage of the ZrO 2 /Al 2 O 3 composite support inhibited the transportation of aluminum from the support into zeolite membranes. No fluorite source was used for the synthesis of cation-free zeolite CHA membranes, indicating the green property of the synthesis. The thickness of the membrane was only 1.0 μm. The best cation-free zeolite CHA membrane prepared by the green in situ synthesis displayed a high CO 2 permeance of 1.1 × 10 −6 mol/(m 2 s Pa) and CO 2 /CH 4 selectivity of 79 at 298 K and 0.2 MPa pressure drop for an equimolar CO 2 /CH 4 mixture.

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Gas Separation Performance of SSZ-13 Zeolite Membranes on Different Supports

Cited by 14 publications

References 34 publications

Small-Pore Zeolite Membranes: A Review of Gas Separation Applications and Membrane Preparation

Small-Pore Zeolite Membranes: A Review of Gas Separation Applications and Membrane Preparation

Copper-Promoted Platinum Supported on HSSZ-13 Zeolite Catalysts for Propane Dehydrogenation to Propylene

In Situ Synthesis of Cation-Free Zirconia-Supported Zeolite CHA Membranes for Efficient CO₂/CH₄ Separation

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Gas Separation Performance of SSZ-13 Zeolite Membranes on Different Supports

Cited by 14 publications

References 34 publications

Small-Pore Zeolite Membranes: A Review of Gas Separation Applications and Membrane Preparation

Small-Pore Zeolite Membranes: A Review of Gas Separation Applications and Membrane Preparation

Copper-Promoted Platinum Supported on HSSZ-13 Zeolite Catalysts for Propane Dehydrogenation to Propylene

In Situ Synthesis of Cation-Free Zirconia-Supported Zeolite CHA Membranes for Efficient CO2/CH4 Separation

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Product

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In Situ Synthesis of Cation-Free Zirconia-Supported Zeolite CHA Membranes for Efficient CO₂/CH₄ Separation