Separation of light gas mixtures using zeolite SSZ-13 membranes

Bin Wang; Yihong Zheng; Jinfeng Zhang; Wenjuan Zhang; Feng Zhang; Weihong Xing; Rongfei Zhou

doi:10.1016/j.micromeso.2018.08.032

Separation of light gas mixtures using zeolite SSZ-13 membranes

Bin Wang, Yihong Zheng, Jinfeng Zhang, Wenjuan Zhang, Feng Zhang, Weihong Xing, Rongfei Zhou

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

64 Scopus citations

Abstract

High-quality SSZ-13 membranes with enhanced permeances were synthesized on the symmetric mullite supports by modifying the synthesis recipes, and shown to be useful for light gas separations. The best SSZ-13 membrane displayed doubled CO₂ permeance and comparative CO₂/CH₄ selectivities compared to our previous mullite supported SSZ-13 membranes. Single-gas permeance of CO₂, H₂, N₂, CH₄, C₂H₆ and C₃H₈ decreased at 298 K with increasing kinetic diameter, except for CO₂. The CO₂/CH₄, CO₂/N₂, H₂/CH₄ and N₂/CH₄ ideal selectivities were 360, 20, 62 and 16, respectively, at room temperature. The mixture selectivities for the same equimolar gas pairs at 298 K were 406, 32, 43 and 16, and the faster-gas permeances of 4.4, 3.2, 1.8 and 0.22 mol/(m² s Pa), respectively. Calcination times, long-time operation and long-term storage had few effects on membrane performance.

Original language	English
Pages (from-to)	191-199
Number of pages	9
Journal	Microporous and Mesoporous Materials
Volume	275
DOIs	https://doi.org/10.1016/j.micromeso.2018.08.032
State	Published - Feb 2019

Keywords

Light gas separation
Long-term storage
Long-time operation
SSZ-13 zeolite membranes

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10.1016/j.micromeso.2018.08.032

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title = "Separation of light gas mixtures using zeolite SSZ-13 membranes",

abstract = "High-quality SSZ-13 membranes with enhanced permeances were synthesized on the symmetric mullite supports by modifying the synthesis recipes, and shown to be useful for light gas separations. The best SSZ-13 membrane displayed doubled CO2 permeance and comparative CO2/CH4 selectivities compared to our previous mullite supported SSZ-13 membranes. Single-gas permeance of CO2, H2, N2, CH4, C2H6 and C3H8 decreased at 298 K with increasing kinetic diameter, except for CO2. The CO2/CH4, CO2/N2, H2/CH4 and N2/CH4 ideal selectivities were 360, 20, 62 and 16, respectively, at room temperature. The mixture selectivities for the same equimolar gas pairs at 298 K were 406, 32, 43 and 16, and the faster-gas permeances of 4.4, 3.2, 1.8 and 0.22 mol/(m2 s Pa), respectively. Calcination times, long-time operation and long-term storage had few effects on membrane performance.",

keywords = "Light gas separation, Long-term storage, Long-time operation, SSZ-13 zeolite membranes",

author = "Bin Wang and Yihong Zheng and Jinfeng Zhang and Wenjuan Zhang and Feng Zhang and Weihong Xing and Rongfei Zhou",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Inc.",

year = "2019",

month = feb,

doi = "10.1016/j.micromeso.2018.08.032",

language = "英语",

volume = "275",

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journal = "Microporous and Mesoporous Materials",

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T1 - Separation of light gas mixtures using zeolite SSZ-13 membranes

AU - Wang, Bin

AU - Zheng, Yihong

AU - Zhang, Jinfeng

AU - Zhang, Wenjuan

AU - Zhang, Feng

AU - Xing, Weihong

AU - Zhou, Rongfei

PY - 2019/2

Y1 - 2019/2

N2 - High-quality SSZ-13 membranes with enhanced permeances were synthesized on the symmetric mullite supports by modifying the synthesis recipes, and shown to be useful for light gas separations. The best SSZ-13 membrane displayed doubled CO2 permeance and comparative CO2/CH4 selectivities compared to our previous mullite supported SSZ-13 membranes. Single-gas permeance of CO2, H2, N2, CH4, C2H6 and C3H8 decreased at 298 K with increasing kinetic diameter, except for CO2. The CO2/CH4, CO2/N2, H2/CH4 and N2/CH4 ideal selectivities were 360, 20, 62 and 16, respectively, at room temperature. The mixture selectivities for the same equimolar gas pairs at 298 K were 406, 32, 43 and 16, and the faster-gas permeances of 4.4, 3.2, 1.8 and 0.22 mol/(m2 s Pa), respectively. Calcination times, long-time operation and long-term storage had few effects on membrane performance.

AB - High-quality SSZ-13 membranes with enhanced permeances were synthesized on the symmetric mullite supports by modifying the synthesis recipes, and shown to be useful for light gas separations. The best SSZ-13 membrane displayed doubled CO2 permeance and comparative CO2/CH4 selectivities compared to our previous mullite supported SSZ-13 membranes. Single-gas permeance of CO2, H2, N2, CH4, C2H6 and C3H8 decreased at 298 K with increasing kinetic diameter, except for CO2. The CO2/CH4, CO2/N2, H2/CH4 and N2/CH4 ideal selectivities were 360, 20, 62 and 16, respectively, at room temperature. The mixture selectivities for the same equimolar gas pairs at 298 K were 406, 32, 43 and 16, and the faster-gas permeances of 4.4, 3.2, 1.8 and 0.22 mol/(m2 s Pa), respectively. Calcination times, long-time operation and long-term storage had few effects on membrane performance.

KW - Light gas separation

KW - Long-term storage

KW - Long-time operation

KW - SSZ-13 zeolite membranes

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U2 - 10.1016/j.micromeso.2018.08.032

DO - 10.1016/j.micromeso.2018.08.032

M3 - 文章

AN - SCOPUS:85052892138

SN - 1387-1811

VL - 275

SP - 191

EP - 199

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

ER -

Separation of light gas mixtures using zeolite SSZ-13 membranes

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Keywords

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